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<?php |
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/** |
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* WordPress DB Class |
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* |
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* Original code from {@link http://php.justinvincent.com Justin Vincent (justin@visunet.ie)} |
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* |
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* @package WordPress |
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* @subpackage Database |
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* @since 0.71 |
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*/ |
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/** |
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* @since 0.71 |
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*/ |
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define( 'EZSQL_VERSION', 'WP1.25' ); |
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/** |
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* @since 0.71 |
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*/ |
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define( 'OBJECT', 'OBJECT', true ); |
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/** |
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* @since 2.5.0 |
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*/ |
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define( 'OBJECT_K', 'OBJECT_K' ); |
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/** |
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* @since 0.71 |
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*/ |
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define( 'ARRAY_A', 'ARRAY_A' ); |
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/** |
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* @since 0.71 |
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*/ |
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define( 'ARRAY_N', 'ARRAY_N' ); |
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/** |
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* WordPress Database Access Abstraction Object |
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* |
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* It is possible to replace this class with your own |
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* by setting the $wpdb global variable in wp-content/db.php |
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* file to your class. The wpdb class will still be included, |
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* so you can extend it or simply use your own. |
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* |
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* @link http://codex.wordpress.org/Function_Reference/wpdb_Class |
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* |
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* @package WordPress |
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* @subpackage Database |
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* @since 0.71 |
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*/ |
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class wpdb { |
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/** |
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* Whether to show SQL/DB errors |
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* |
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* @since 0.71 |
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* @access private |
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* @var bool |
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*/ |
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var $show_errors = false; |
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/** |
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* Whether to suppress errors during the DB bootstrapping. |
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* |
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* @access private |
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* @since 2.5.0 |
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* @var bool |
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*/ |
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var $suppress_errors = false; |
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/** |
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* The last error during query. |
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* |
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* @since 2.5.0 |
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* @var string |
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*/ |
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var $last_error = ''; |
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/** |
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* Amount of queries made |
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* |
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* @since 1.2.0 |
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* @access private |
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* @var int |
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*/ |
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var $num_queries = 0; |
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/** |
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* Count of rows returned by previous query |
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* |
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* @since 0.71 |
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* @access private |
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* @var int |
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*/ |
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var $num_rows = 0; |
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/** |
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* Count of affected rows by previous query |
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* |
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* @since 0.71 |
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* @access private |
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* @var int |
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*/ |
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var $rows_affected = 0; |
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/** |
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* The ID generated for an AUTO_INCREMENT column by the previous query (usually INSERT). |
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* |
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* @since 0.71 |
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* @access public |
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* @var int |
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*/ |
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var $insert_id = 0; |
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/** |
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* Last query made |
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* |
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* @since 0.71 |
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* @access private |
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* @var array |
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*/ |
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var $last_query; |
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/** |
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* Results of the last query made |
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* |
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* @since 0.71 |
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* @access private |
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* @var array|null |
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*/ |
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var $last_result; |
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/** |
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* MySQL result, which is either a resource or boolean. |
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* |
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* @since 0.71 |
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* @access protected |
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* @var mixed |
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*/ |
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protected $result; |
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/** |
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* Saved info on the table column |
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* |
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* @since 0.71 |
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* @access protected |
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* @var array |
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*/ |
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protected $col_info; |
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/** |
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* Saved queries that were executed |
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* |
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* @since 1.5.0 |
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* @access private |
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* @var array |
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*/ |
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var $queries; |
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/** |
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* WordPress table prefix |
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* |
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* You can set this to have multiple WordPress installations |
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* in a single database. The second reason is for possible |
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* security precautions. |
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* |
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* @since 2.5.0 |
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* @access private |
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* @var string |
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*/ |
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var $prefix = ''; |
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/** |
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* Whether the database queries are ready to start executing. |
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* |
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* @since 2.3.2 |
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* @access private |
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* @var bool |
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*/ |
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var $ready = false; |
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/** |
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* {@internal Missing Description}} |
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* |
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* @since 3.0.0 |
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* @access public |
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* @var int |
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*/ |
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var $blogid = 0; |
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/** |
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* {@internal Missing Description}} |
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* |
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* @since 3.0.0 |
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* @access public |
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* @var int |
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*/ |
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var $siteid = 0; |
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/** |
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* List of WordPress per-blog tables |
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* |
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* @since 2.5.0 |
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* @access private |
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* @see wpdb::tables() |
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* @var array |
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*/ |
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var $tables = array( 'posts', 'comments', 'links', 'options', 'postmeta', |
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'terms', 'term_taxonomy', 'term_relationships', 'commentmeta' ); |
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/** |
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* List of deprecated WordPress tables |
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* |
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* categories, post2cat, and link2cat were deprecated in 2.3.0, db version 5539 |
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* |
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* @since 2.9.0 |
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* @access private |
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* @see wpdb::tables() |
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* @var array |
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*/ |
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var $old_tables = array( 'categories', 'post2cat', 'link2cat' ); |
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/** |
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* List of WordPress global tables |
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* |
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* @since 3.0.0 |
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* @access private |
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* @see wpdb::tables() |
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* @var array |
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*/ |
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var $global_tables = array( 'users', 'usermeta' ); |
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/** |
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* List of Multisite global tables |
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* |
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* @since 3.0.0 |
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* @access private |
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* @see wpdb::tables() |
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* @var array |
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*/ |
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var $ms_global_tables = array( 'blogs', 'signups', 'site', 'sitemeta', |
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'sitecategories', 'registration_log', 'blog_versions' ); |
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/** |
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* WordPress Comments table |
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* |
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* @since 1.5.0 |
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* @access public |
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* @var string |
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*/ |
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var $comments; |
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/** |
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* WordPress Comment Metadata table |
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* |
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* @since 2.9.0 |
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* @access public |
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* @var string |
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*/ |
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var $commentmeta; |
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/** |
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* WordPress Links table |
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* |
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* @since 1.5.0 |
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* @access public |
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* @var string |
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*/ |
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var $links; |
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/** |
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* WordPress Options table |
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* |
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* @since 1.5.0 |
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* @access public |
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* @var string |
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*/ |
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var $options; |
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/** |
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* WordPress Post Metadata table |
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* |
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* @since 1.5.0 |
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* @access public |
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* @var string |
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*/ |
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var $postmeta; |
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/** |
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* WordPress Posts table |
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* |
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* @since 1.5.0 |
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* @access public |
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* @var string |
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*/ |
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var $posts; |
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/** |
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* WordPress Terms table |
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* |
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* @since 2.3.0 |
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* @access public |
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* @var string |
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*/ |
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var $terms; |
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/** |
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* WordPress Term Relationships table |
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* |
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* @since 2.3.0 |
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* @access public |
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* @var string |
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*/ |
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var $term_relationships; |
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/** |
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* WordPress Term Taxonomy table |
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* |
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* @since 2.3.0 |
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* @access public |
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* @var string |
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*/ |
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var $term_taxonomy; |
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/* |
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* Global and Multisite tables |
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*/ |
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/** |
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* WordPress User Metadata table |
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* |
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* @since 2.3.0 |
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* @access public |
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* @var string |
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*/ |
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var $usermeta; |
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/** |
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* WordPress Users table |
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* |
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* @since 1.5.0 |
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* @access public |
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* @var string |
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*/ |
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var $users; |
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/** |
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* Multisite Blogs table |
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* |
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* @since 3.0.0 |
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* @access public |
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* @var string |
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*/ |
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var $blogs; |
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/** |
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* Multisite Blog Versions table |
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* |
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* @since 3.0.0 |
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* @access public |
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* @var string |
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*/ |
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var $blog_versions; |
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/** |
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* Multisite Registration Log table |
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* |
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* @since 3.0.0 |
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* @access public |
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* @var string |
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*/ |
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var $registration_log; |
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/** |
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* Multisite Signups table |
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* |
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* @since 3.0.0 |
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* @access public |
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* @var string |
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*/ |
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var $signups; |
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/** |
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* Multisite Sites table |
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* |
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* @since 3.0.0 |
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* @access public |
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* @var string |
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*/ |
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var $site; |
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/** |
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* Multisite Sitewide Terms table |
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* |
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* @since 3.0.0 |
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* @access public |
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* @var string |
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*/ |
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var $sitecategories; |
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/** |
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* Multisite Site Metadata table |
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* |
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* @since 3.0.0 |
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* @access public |
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* @var string |
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*/ |
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var $sitemeta; |
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/** |
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* Format specifiers for DB columns. Columns not listed here default to %s. Initialized during WP load. |
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* |
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* Keys are column names, values are format types: 'ID' => '%d' |
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* |
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* @since 2.8.0 |
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* @see wpdb::prepare() |
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* @see wpdb::insert() |
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* @see wpdb::update() |
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* @see wpdb::delete() |
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* @see wp_set_wpdb_vars() |
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* @access public |
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* @var array |
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*/ |
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var $field_types = array(); |
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/** |
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* Database table columns charset |
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* |
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* @since 2.2.0 |
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* @access public |
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* @var string |
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*/ |
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var $charset; |
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/** |
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* Database table columns collate |
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* |
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* @since 2.2.0 |
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* @access public |
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* @var string |
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*/ |
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var $collate; |
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/** |
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* Database Username |
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* |
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* @since 2.9.0 |
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* @access protected |
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* @var string |
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*/ |
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protected $dbuser; |
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452 |
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/** |
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* Database Password |
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* |
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* @since 3.1.0 |
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* @access protected |
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* @var string |
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*/ |
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protected $dbpassword; |
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461 |
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/** |
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* Database Name |
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464 |
* |
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465 |
* @since 3.1.0 |
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* @access protected |
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467 |
* @var string |
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468 |
*/ |
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469 |
protected $dbname; |
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470 |
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/** |
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472 |
* Database Host |
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473 |
* |
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474 |
* @since 3.1.0 |
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|
475 |
* @access protected |
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476 |
* @var string |
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477 |
*/ |
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478 |
protected $dbhost; |
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479 |
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480 |
/** |
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481 |
* Database Handle |
|
|
482 |
* |
|
|
483 |
* @since 0.71 |
|
|
484 |
* @access protected |
|
|
485 |
* @var string |
|
|
486 |
*/ |
|
|
487 |
protected $dbh; |
|
|
488 |
|
|
|
489 |
/** |
|
|
490 |
* A textual description of the last query/get_row/get_var call |
|
|
491 |
* |
|
|
492 |
* @since 3.0.0 |
|
|
493 |
* @access public |
|
|
494 |
* @var string |
|
|
495 |
*/ |
|
|
496 |
var $func_call; |
|
|
497 |
|
|
|
498 |
/** |
|
|
499 |
* Whether MySQL is used as the database engine. |
|
|
500 |
* |
|
|
501 |
* Set in WPDB::db_connect() to true, by default. This is used when checking |
|
|
502 |
* against the required MySQL version for WordPress. Normally, a replacement |
|
|
503 |
* database drop-in (db.php) will skip these checks, but setting this to true |
|
|
504 |
* will force the checks to occur. |
|
|
505 |
* |
|
|
506 |
* @since 3.3.0 |
|
|
507 |
* @access public |
|
|
508 |
* @var bool |
|
|
509 |
*/ |
|
|
510 |
public $is_mysql = null; |
|
|
511 |
|
|
|
512 |
/** |
|
|
513 |
* Connects to the database server and selects a database |
|
|
514 |
* |
|
|
515 |
* PHP5 style constructor for compatibility with PHP5. Does |
|
|
516 |
* the actual setting up of the class properties and connection |
|
|
517 |
* to the database. |
|
|
518 |
* |
|
|
519 |
* @link http://core.trac.wordpress.org/ticket/3354 |
|
|
520 |
* @since 2.0.8 |
|
|
521 |
* |
|
|
522 |
* @param string $dbuser MySQL database user |
|
|
523 |
* @param string $dbpassword MySQL database password |
|
|
524 |
* @param string $dbname MySQL database name |
|
|
525 |
* @param string $dbhost MySQL database host |
|
|
526 |
*/ |
|
|
527 |
function __construct( $dbuser, $dbpassword, $dbname, $dbhost ) { |
|
|
528 |
register_shutdown_function( array( $this, '__destruct' ) ); |
|
|
529 |
|
|
|
530 |
if ( WP_DEBUG && WP_DEBUG_DISPLAY ) |
|
|
531 |
$this->show_errors(); |
|
|
532 |
|
|
|
533 |
$this->init_charset(); |
|
|
534 |
|
|
|
535 |
$this->dbuser = $dbuser; |
|
|
536 |
$this->dbpassword = $dbpassword; |
|
|
537 |
$this->dbname = $dbname; |
|
|
538 |
$this->dbhost = $dbhost; |
|
|
539 |
|
|
|
540 |
$this->db_connect(); |
|
|
541 |
} |
|
|
542 |
|
|
|
543 |
/** |
|
|
544 |
* PHP5 style destructor and will run when database object is destroyed. |
|
|
545 |
* |
|
|
546 |
* @see wpdb::__construct() |
|
|
547 |
* @since 2.0.8 |
|
|
548 |
* @return bool true |
|
|
549 |
*/ |
|
|
550 |
function __destruct() { |
|
|
551 |
return true; |
|
|
552 |
} |
|
|
553 |
|
|
|
554 |
/** |
|
|
555 |
* PHP5 style magic getter, used to lazy-load expensive data. |
|
|
556 |
* |
|
|
557 |
* @since 3.5.0 |
|
|
558 |
* |
|
|
559 |
* @param string $name The private member to get, and optionally process |
|
|
560 |
* @return mixed The private member |
|
|
561 |
*/ |
|
|
562 |
function __get( $name ) { |
|
|
563 |
if ( 'col_info' == $name ) |
|
|
564 |
$this->load_col_info(); |
|
|
565 |
|
|
|
566 |
return $this->$name; |
|
|
567 |
} |
|
|
568 |
|
|
|
569 |
/** |
|
|
570 |
* Magic function, for backwards compatibility |
|
|
571 |
* |
|
|
572 |
* @since 3.5.0 |
|
|
573 |
* |
|
|
574 |
* @param string $name The private member to set |
|
|
575 |
* @param mixed $value The value to set |
|
|
576 |
*/ |
|
|
577 |
function __set( $name, $value ) { |
|
|
578 |
$this->$name = $value; |
|
|
579 |
} |
|
|
580 |
|
|
|
581 |
/** |
|
|
582 |
* Magic function, for backwards compatibility |
|
|
583 |
* |
|
|
584 |
* @since 3.5.0 |
|
|
585 |
* |
|
|
586 |
* @param string $name The private member to check |
|
|
587 |
* |
|
|
588 |
* @return bool If the member is set or not |
|
|
589 |
*/ |
|
|
590 |
function __isset( $name ) { |
|
|
591 |
return isset( $this->$name ); |
|
|
592 |
} |
|
|
593 |
|
|
|
594 |
/** |
|
|
595 |
* Magic function, for backwards compatibility |
|
|
596 |
* |
|
|
597 |
* @since 3.5.0 |
|
|
598 |
* |
|
|
599 |
* @param string $name The private member to unset |
|
|
600 |
*/ |
|
|
601 |
function __unset( $name ) { |
|
|
602 |
unset( $this->$name ); |
|
|
603 |
} |
|
|
604 |
|
|
|
605 |
/** |
|
|
606 |
* Set $this->charset and $this->collate |
|
|
607 |
* |
|
|
608 |
* @since 3.1.0 |
|
|
609 |
*/ |
|
|
610 |
function init_charset() { |
|
|
611 |
if ( function_exists('is_multisite') && is_multisite() ) { |
|
|
612 |
$this->charset = 'utf8'; |
|
|
613 |
if ( defined( 'DB_COLLATE' ) && DB_COLLATE ) |
|
|
614 |
$this->collate = DB_COLLATE; |
|
|
615 |
else |
|
|
616 |
$this->collate = 'utf8_general_ci'; |
|
|
617 |
} elseif ( defined( 'DB_COLLATE' ) ) { |
|
|
618 |
$this->collate = DB_COLLATE; |
|
|
619 |
} |
|
|
620 |
|
|
|
621 |
if ( defined( 'DB_CHARSET' ) ) |
|
|
622 |
$this->charset = DB_CHARSET; |
|
|
623 |
} |
|
|
624 |
|
|
|
625 |
/** |
|
|
626 |
* Sets the connection's character set. |
|
|
627 |
* |
|
|
628 |
* @since 3.1.0 |
|
|
629 |
* |
|
|
630 |
* @param resource $dbh The resource given by mysql_connect |
|
|
631 |
* @param string $charset The character set (optional) |
|
|
632 |
* @param string $collate The collation (optional) |
|
|
633 |
*/ |
|
|
634 |
function set_charset( $dbh, $charset = null, $collate = null ) { |
|
|
635 |
if ( ! isset( $charset ) ) |
|
|
636 |
$charset = $this->charset; |
|
|
637 |
if ( ! isset( $collate ) ) |
|
|
638 |
$collate = $this->collate; |
|
|
639 |
if ( $this->has_cap( 'collation' ) && ! empty( $charset ) ) { |
|
|
640 |
if ( function_exists( 'mysql_set_charset' ) && $this->has_cap( 'set_charset' ) ) { |
|
|
641 |
mysql_set_charset( $charset, $dbh ); |
|
|
642 |
} else { |
|
|
643 |
$query = $this->prepare( 'SET NAMES %s', $charset ); |
|
|
644 |
if ( ! empty( $collate ) ) |
|
|
645 |
$query .= $this->prepare( ' COLLATE %s', $collate ); |
|
|
646 |
mysql_query( $query, $dbh ); |
|
|
647 |
} |
|
|
648 |
} |
|
|
649 |
} |
|
|
650 |
|
|
|
651 |
/** |
|
|
652 |
* Sets the table prefix for the WordPress tables. |
|
|
653 |
* |
|
|
654 |
* @since 2.5.0 |
|
|
655 |
* |
|
|
656 |
* @param string $prefix Alphanumeric name for the new prefix. |
|
|
657 |
* @param bool $set_table_names Optional. Whether the table names, e.g. wpdb::$posts, should be updated or not. |
|
|
658 |
* @return string|WP_Error Old prefix or WP_Error on error |
|
|
659 |
*/ |
|
|
660 |
function set_prefix( $prefix, $set_table_names = true ) { |
|
|
661 |
|
|
|
662 |
if ( preg_match( '|[^a-z0-9_]|i', $prefix ) ) |
|
|
663 |
return new WP_Error('invalid_db_prefix', 'Invalid database prefix' ); |
|
|
664 |
|
|
|
665 |
$old_prefix = is_multisite() ? '' : $prefix; |
|
|
666 |
|
|
|
667 |
if ( isset( $this->base_prefix ) ) |
|
|
668 |
$old_prefix = $this->base_prefix; |
|
|
669 |
|
|
|
670 |
$this->base_prefix = $prefix; |
|
|
671 |
|
|
|
672 |
if ( $set_table_names ) { |
|
|
673 |
foreach ( $this->tables( 'global' ) as $table => $prefixed_table ) |
|
|
674 |
$this->$table = $prefixed_table; |
|
|
675 |
|
|
|
676 |
if ( is_multisite() && empty( $this->blogid ) ) |
|
|
677 |
return $old_prefix; |
|
|
678 |
|
|
|
679 |
$this->prefix = $this->get_blog_prefix(); |
|
|
680 |
|
|
|
681 |
foreach ( $this->tables( 'blog' ) as $table => $prefixed_table ) |
|
|
682 |
$this->$table = $prefixed_table; |
|
|
683 |
|
|
|
684 |
foreach ( $this->tables( 'old' ) as $table => $prefixed_table ) |
|
|
685 |
$this->$table = $prefixed_table; |
|
|
686 |
} |
|
|
687 |
return $old_prefix; |
|
|
688 |
} |
|
|
689 |
|
|
|
690 |
/** |
|
|
691 |
* Sets blog id. |
|
|
692 |
* |
|
|
693 |
* @since 3.0.0 |
|
|
694 |
* @access public |
|
|
695 |
* @param int $blog_id |
|
|
696 |
* @param int $site_id Optional. |
|
|
697 |
* @return string previous blog id |
|
|
698 |
*/ |
|
|
699 |
function set_blog_id( $blog_id, $site_id = 0 ) { |
|
|
700 |
if ( ! empty( $site_id ) ) |
|
|
701 |
$this->siteid = $site_id; |
|
|
702 |
|
|
|
703 |
$old_blog_id = $this->blogid; |
|
|
704 |
$this->blogid = $blog_id; |
|
|
705 |
|
|
|
706 |
$this->prefix = $this->get_blog_prefix(); |
|
|
707 |
|
|
|
708 |
foreach ( $this->tables( 'blog' ) as $table => $prefixed_table ) |
|
|
709 |
$this->$table = $prefixed_table; |
|
|
710 |
|
|
|
711 |
foreach ( $this->tables( 'old' ) as $table => $prefixed_table ) |
|
|
712 |
$this->$table = $prefixed_table; |
|
|
713 |
|
|
|
714 |
return $old_blog_id; |
|
|
715 |
} |
|
|
716 |
|
|
|
717 |
/** |
|
|
718 |
* Gets blog prefix. |
|
|
719 |
* |
|
|
720 |
* @uses is_multisite() |
|
|
721 |
* @since 3.0.0 |
|
|
722 |
* @param int $blog_id Optional. |
|
|
723 |
* @return string Blog prefix. |
|
|
724 |
*/ |
|
|
725 |
function get_blog_prefix( $blog_id = null ) { |
|
|
726 |
if ( is_multisite() ) { |
|
|
727 |
if ( null === $blog_id ) |
|
|
728 |
$blog_id = $this->blogid; |
|
|
729 |
$blog_id = (int) $blog_id; |
|
|
730 |
if ( defined( 'MULTISITE' ) && ( 0 == $blog_id || 1 == $blog_id ) ) |
|
|
731 |
return $this->base_prefix; |
|
|
732 |
else |
|
|
733 |
return $this->base_prefix . $blog_id . '_'; |
|
|
734 |
} else { |
|
|
735 |
return $this->base_prefix; |
|
|
736 |
} |
|
|
737 |
} |
|
|
738 |
|
|
|
739 |
/** |
|
|
740 |
* Returns an array of WordPress tables. |
|
|
741 |
* |
|
|
742 |
* Also allows for the CUSTOM_USER_TABLE and CUSTOM_USER_META_TABLE to |
|
|
743 |
* override the WordPress users and usermeta tables that would otherwise |
|
|
744 |
* be determined by the prefix. |
|
|
745 |
* |
|
|
746 |
* The scope argument can take one of the following: |
|
|
747 |
* |
|
|
748 |
* 'all' - returns 'all' and 'global' tables. No old tables are returned. |
|
|
749 |
* 'blog' - returns the blog-level tables for the queried blog. |
|
|
750 |
* 'global' - returns the global tables for the installation, returning multisite tables only if running multisite. |
|
|
751 |
* 'ms_global' - returns the multisite global tables, regardless if current installation is multisite. |
|
|
752 |
* 'old' - returns tables which are deprecated. |
|
|
753 |
* |
|
|
754 |
* @since 3.0.0 |
|
|
755 |
* @uses wpdb::$tables |
|
|
756 |
* @uses wpdb::$old_tables |
|
|
757 |
* @uses wpdb::$global_tables |
|
|
758 |
* @uses wpdb::$ms_global_tables |
|
|
759 |
* @uses is_multisite() |
|
|
760 |
* |
|
|
761 |
* @param string $scope Optional. Can be all, global, ms_global, blog, or old tables. Defaults to all. |
|
|
762 |
* @param bool $prefix Optional. Whether to include table prefixes. Default true. If blog |
|
|
763 |
* prefix is requested, then the custom users and usermeta tables will be mapped. |
|
|
764 |
* @param int $blog_id Optional. The blog_id to prefix. Defaults to wpdb::$blogid. Used only when prefix is requested. |
|
|
765 |
* @return array Table names. When a prefix is requested, the key is the unprefixed table name. |
|
|
766 |
*/ |
|
|
767 |
function tables( $scope = 'all', $prefix = true, $blog_id = 0 ) { |
|
|
768 |
switch ( $scope ) { |
|
|
769 |
case 'all' : |
|
|
770 |
$tables = array_merge( $this->global_tables, $this->tables ); |
|
|
771 |
if ( is_multisite() ) |
|
|
772 |
$tables = array_merge( $tables, $this->ms_global_tables ); |
|
|
773 |
break; |
|
|
774 |
case 'blog' : |
|
|
775 |
$tables = $this->tables; |
|
|
776 |
break; |
|
|
777 |
case 'global' : |
|
|
778 |
$tables = $this->global_tables; |
|
|
779 |
if ( is_multisite() ) |
|
|
780 |
$tables = array_merge( $tables, $this->ms_global_tables ); |
|
|
781 |
break; |
|
|
782 |
case 'ms_global' : |
|
|
783 |
$tables = $this->ms_global_tables; |
|
|
784 |
break; |
|
|
785 |
case 'old' : |
|
|
786 |
$tables = $this->old_tables; |
|
|
787 |
break; |
|
|
788 |
default : |
|
|
789 |
return array(); |
|
|
790 |
break; |
|
|
791 |
} |
|
|
792 |
|
|
|
793 |
if ( $prefix ) { |
|
|
794 |
if ( ! $blog_id ) |
|
|
795 |
$blog_id = $this->blogid; |
|
|
796 |
$blog_prefix = $this->get_blog_prefix( $blog_id ); |
|
|
797 |
$base_prefix = $this->base_prefix; |
|
|
798 |
$global_tables = array_merge( $this->global_tables, $this->ms_global_tables ); |
|
|
799 |
foreach ( $tables as $k => $table ) { |
|
|
800 |
if ( in_array( $table, $global_tables ) ) |
|
|
801 |
$tables[ $table ] = $base_prefix . $table; |
|
|
802 |
else |
|
|
803 |
$tables[ $table ] = $blog_prefix . $table; |
|
|
804 |
unset( $tables[ $k ] ); |
|
|
805 |
} |
|
|
806 |
|
|
|
807 |
if ( isset( $tables['users'] ) && defined( 'CUSTOM_USER_TABLE' ) ) |
|
|
808 |
$tables['users'] = CUSTOM_USER_TABLE; |
|
|
809 |
|
|
|
810 |
if ( isset( $tables['usermeta'] ) && defined( 'CUSTOM_USER_META_TABLE' ) ) |
|
|
811 |
$tables['usermeta'] = CUSTOM_USER_META_TABLE; |
|
|
812 |
} |
|
|
813 |
|
|
|
814 |
return $tables; |
|
|
815 |
} |
|
|
816 |
|
|
|
817 |
/** |
|
|
818 |
* Selects a database using the current database connection. |
|
|
819 |
* |
|
|
820 |
* The database name will be changed based on the current database |
|
|
821 |
* connection. On failure, the execution will bail and display an DB error. |
|
|
822 |
* |
|
|
823 |
* @since 0.71 |
|
|
824 |
* |
|
|
825 |
* @param string $db MySQL database name |
|
|
826 |
* @param resource $dbh Optional link identifier. |
|
|
827 |
* @return null Always null. |
|
|
828 |
*/ |
|
|
829 |
function select( $db, $dbh = null ) { |
|
|
830 |
if ( is_null($dbh) ) |
|
|
831 |
$dbh = $this->dbh; |
|
|
832 |
|
|
|
833 |
if ( !@mysql_select_db( $db, $dbh ) ) { |
|
|
834 |
$this->ready = false; |
|
|
835 |
wp_load_translations_early(); |
|
|
836 |
$this->bail( sprintf( __( '<h1>Can’t select database</h1> |
|
|
837 |
<p>We were able to connect to the database server (which means your username and password is okay) but not able to select the <code>%1$s</code> database.</p> |
|
|
838 |
<ul> |
|
|
839 |
<li>Are you sure it exists?</li> |
|
|
840 |
<li>Does the user <code>%2$s</code> have permission to use the <code>%1$s</code> database?</li> |
|
|
841 |
<li>On some systems the name of your database is prefixed with your username, so it would be like <code>username_%1$s</code>. Could that be the problem?</li> |
|
|
842 |
</ul> |
|
|
843 |
<p>If you don\'t know how to set up a database you should <strong>contact your host</strong>. If all else fails you may find help at the <a href="http://wordpress.org/support/">WordPress Support Forums</a>.</p>' ), htmlspecialchars( $db, ENT_QUOTES ), htmlspecialchars( $this->dbuser, ENT_QUOTES ) ), 'db_select_fail' ); |
|
|
844 |
return; |
|
|
845 |
} |
|
|
846 |
} |
|
|
847 |
|
|
|
848 |
/** |
|
|
849 |
* Do not use, deprecated. |
|
|
850 |
* |
|
|
851 |
* Use esc_sql() or wpdb::prepare() instead. |
|
|
852 |
* |
|
|
853 |
* @since 2.8.0 |
|
|
854 |
* @deprecated 3.6.0 |
|
|
855 |
* @see wpdb::prepare |
|
|
856 |
* @see esc_sql() |
|
|
857 |
* @access private |
|
|
858 |
* |
|
|
859 |
* @param string $string |
|
|
860 |
* @return string |
|
|
861 |
*/ |
|
|
862 |
function _weak_escape( $string ) { |
|
|
863 |
if ( func_num_args() === 1 && function_exists( '_deprecated_function' ) ) |
|
|
864 |
_deprecated_function( __METHOD__, '3.6', 'wpdb::prepare() or esc_sql()' ); |
|
|
865 |
return addslashes( $string ); |
|
|
866 |
} |
|
|
867 |
|
|
|
868 |
/** |
|
|
869 |
* Real escape, using mysql_real_escape_string() |
|
|
870 |
* |
|
|
871 |
* @see mysql_real_escape_string() |
|
|
872 |
* @since 2.8.0 |
|
|
873 |
* @access private |
|
|
874 |
* |
|
|
875 |
* @param string $string to escape |
|
|
876 |
* @return string escaped |
|
|
877 |
*/ |
|
|
878 |
function _real_escape( $string ) { |
|
|
879 |
if ( $this->dbh ) |
|
|
880 |
return mysql_real_escape_string( $string, $this->dbh ); |
|
|
881 |
|
|
|
882 |
$class = get_class( $this ); |
|
|
883 |
_doing_it_wrong( $class, "$class must set a database connection for use with escaping.", E_USER_NOTICE ); |
|
|
884 |
return addslashes( $string ); |
|
|
885 |
} |
|
|
886 |
|
|
|
887 |
/** |
|
|
888 |
* Escape data. Works on arrays. |
|
|
889 |
* |
|
|
890 |
* @uses wpdb::_real_escape() |
|
|
891 |
* @since 2.8.0 |
|
|
892 |
* @access private |
|
|
893 |
* |
|
|
894 |
* @param string|array $data |
|
|
895 |
* @return string|array escaped |
|
|
896 |
*/ |
|
|
897 |
function _escape( $data ) { |
|
|
898 |
if ( is_array( $data ) ) { |
|
|
899 |
foreach ( $data as $k => $v ) { |
|
|
900 |
if ( is_array($v) ) |
|
|
901 |
$data[$k] = $this->_escape( $v ); |
|
|
902 |
else |
|
|
903 |
$data[$k] = $this->_real_escape( $v ); |
|
|
904 |
} |
|
|
905 |
} else { |
|
|
906 |
$data = $this->_real_escape( $data ); |
|
|
907 |
} |
|
|
908 |
|
|
|
909 |
return $data; |
|
|
910 |
} |
|
|
911 |
|
|
|
912 |
/** |
|
|
913 |
* Do not use, deprecated. |
|
|
914 |
* |
|
|
915 |
* Use esc_sql() or wpdb::prepare() instead. |
|
|
916 |
* |
|
|
917 |
* @since 0.71 |
|
|
918 |
* @deprecated 3.6.0 |
|
|
919 |
* @see wpdb::prepare() |
|
|
920 |
* @see esc_sql() |
|
|
921 |
* |
|
|
922 |
* @param mixed $data |
|
|
923 |
* @return mixed |
|
|
924 |
*/ |
|
|
925 |
function escape( $data ) { |
|
|
926 |
if ( func_num_args() === 1 && function_exists( '_deprecated_function' ) ) |
|
|
927 |
_deprecated_function( __METHOD__, '3.6', 'wpdb::prepare() or esc_sql()' ); |
|
|
928 |
if ( is_array( $data ) ) { |
|
|
929 |
foreach ( $data as $k => $v ) { |
|
|
930 |
if ( is_array( $v ) ) |
|
|
931 |
$data[$k] = $this->escape( $v, 'recursive' ); |
|
|
932 |
else |
|
|
933 |
$data[$k] = $this->_weak_escape( $v, 'internal' ); |
|
|
934 |
} |
|
|
935 |
} else { |
|
|
936 |
$data = $this->_weak_escape( $data, 'internal' ); |
|
|
937 |
} |
|
|
938 |
|
|
|
939 |
return $data; |
|
|
940 |
} |
|
|
941 |
|
|
|
942 |
/** |
|
|
943 |
* Escapes content by reference for insertion into the database, for security |
|
|
944 |
* |
|
|
945 |
* @uses wpdb::_real_escape() |
|
|
946 |
* @since 2.3.0 |
|
|
947 |
* @param string $string to escape |
|
|
948 |
* @return void |
|
|
949 |
*/ |
|
|
950 |
function escape_by_ref( &$string ) { |
|
|
951 |
if ( ! is_float( $string ) ) |
|
|
952 |
$string = $this->_real_escape( $string ); |
|
|
953 |
} |
|
|
954 |
|
|
|
955 |
/** |
|
|
956 |
* Prepares a SQL query for safe execution. Uses sprintf()-like syntax. |
|
|
957 |
* |
|
|
958 |
* The following directives can be used in the query format string: |
|
|
959 |
* %d (integer) |
|
|
960 |
* %f (float) |
|
|
961 |
* %s (string) |
|
|
962 |
* %% (literal percentage sign - no argument needed) |
|
|
963 |
* |
|
|
964 |
* All of %d, %f, and %s are to be left unquoted in the query string and they need an argument passed for them. |
|
|
965 |
* Literals (%) as parts of the query must be properly written as %%. |
|
|
966 |
* |
|
|
967 |
* This function only supports a small subset of the sprintf syntax; it only supports %d (integer), %f (float), and %s (string). |
|
|
968 |
* Does not support sign, padding, alignment, width or precision specifiers. |
|
|
969 |
* Does not support argument numbering/swapping. |
|
|
970 |
* |
|
|
971 |
* May be called like {@link http://php.net/sprintf sprintf()} or like {@link http://php.net/vsprintf vsprintf()}. |
|
|
972 |
* |
|
|
973 |
* Both %d and %s should be left unquoted in the query string. |
|
|
974 |
* |
|
|
975 |
* <code> |
|
|
976 |
* wpdb::prepare( "SELECT * FROM `table` WHERE `column` = %s AND `field` = %d", 'foo', 1337 ) |
|
|
977 |
* wpdb::prepare( "SELECT DATE_FORMAT(`field`, '%%c') FROM `table` WHERE `column` = %s", 'foo' ); |
|
|
978 |
* </code> |
|
|
979 |
* |
|
|
980 |
* @link http://php.net/sprintf Description of syntax. |
|
|
981 |
* @since 2.3.0 |
|
|
982 |
* |
|
|
983 |
* @param string $query Query statement with sprintf()-like placeholders |
|
|
984 |
* @param array|mixed $args The array of variables to substitute into the query's placeholders if being called like |
|
|
985 |
* {@link http://php.net/vsprintf vsprintf()}, or the first variable to substitute into the query's placeholders if |
|
|
986 |
* being called like {@link http://php.net/sprintf sprintf()}. |
|
|
987 |
* @param mixed $args,... further variables to substitute into the query's placeholders if being called like |
|
|
988 |
* {@link http://php.net/sprintf sprintf()}. |
|
|
989 |
* @return null|false|string Sanitized query string, null if there is no query, false if there is an error and string |
|
|
990 |
* if there was something to prepare |
|
|
991 |
*/ |
|
|
992 |
function prepare( $query, $args ) { |
|
|
993 |
if ( is_null( $query ) ) |
|
|
994 |
return; |
|
|
995 |
|
|
|
996 |
$args = func_get_args(); |
|
|
997 |
array_shift( $args ); |
|
|
998 |
// If args were passed as an array (as in vsprintf), move them up |
|
|
999 |
if ( isset( $args[0] ) && is_array($args[0]) ) |
|
|
1000 |
$args = $args[0]; |
|
|
1001 |
$query = str_replace( "'%s'", '%s', $query ); // in case someone mistakenly already singlequoted it |
|
|
1002 |
$query = str_replace( '"%s"', '%s', $query ); // doublequote unquoting |
|
|
1003 |
$query = preg_replace( '|(?<!%)%f|' , '%F', $query ); // Force floats to be locale unaware |
|
|
1004 |
$query = preg_replace( '|(?<!%)%s|', "'%s'", $query ); // quote the strings, avoiding escaped strings like %%s |
|
|
1005 |
array_walk( $args, array( $this, 'escape_by_ref' ) ); |
|
|
1006 |
return @vsprintf( $query, $args ); |
|
|
1007 |
} |
|
|
1008 |
|
|
|
1009 |
/** |
|
|
1010 |
* Print SQL/DB error. |
|
|
1011 |
* |
|
|
1012 |
* @since 0.71 |
|
|
1013 |
* @global array $EZSQL_ERROR Stores error information of query and error string |
|
|
1014 |
* |
|
|
1015 |
* @param string $str The error to display |
|
|
1016 |
* @return bool False if the showing of errors is disabled. |
|
|
1017 |
*/ |
|
|
1018 |
function print_error( $str = '' ) { |
|
|
1019 |
global $EZSQL_ERROR; |
|
|
1020 |
|
|
|
1021 |
if ( !$str ) |
|
|
1022 |
$str = mysql_error( $this->dbh ); |
|
|
1023 |
$EZSQL_ERROR[] = array( 'query' => $this->last_query, 'error_str' => $str ); |
|
|
1024 |
|
|
|
1025 |
if ( $this->suppress_errors ) |
|
|
1026 |
return false; |
|
|
1027 |
|
|
|
1028 |
wp_load_translations_early(); |
|
|
1029 |
|
|
|
1030 |
if ( $caller = $this->get_caller() ) |
|
|
1031 |
$error_str = sprintf( __( 'WordPress database error %1$s for query %2$s made by %3$s' ), $str, $this->last_query, $caller ); |
|
|
1032 |
else |
|
|
1033 |
$error_str = sprintf( __( 'WordPress database error %1$s for query %2$s' ), $str, $this->last_query ); |
|
|
1034 |
|
|
|
1035 |
error_log( $error_str ); |
|
|
1036 |
|
|
|
1037 |
// Are we showing errors? |
|
|
1038 |
if ( ! $this->show_errors ) |
|
|
1039 |
return false; |
|
|
1040 |
|
|
|
1041 |
// If there is an error then take note of it |
|
|
1042 |
if ( is_multisite() ) { |
|
|
1043 |
$msg = "WordPress database error: [$str]\n{$this->last_query}\n"; |
|
|
1044 |
if ( defined( 'ERRORLOGFILE' ) ) |
|
|
1045 |
error_log( $msg, 3, ERRORLOGFILE ); |
|
|
1046 |
if ( defined( 'DIEONDBERROR' ) ) |
|
|
1047 |
wp_die( $msg ); |
|
|
1048 |
} else { |
|
|
1049 |
$str = htmlspecialchars( $str, ENT_QUOTES ); |
|
|
1050 |
$query = htmlspecialchars( $this->last_query, ENT_QUOTES ); |
|
|
1051 |
|
|
|
1052 |
print "<div id='error'> |
|
|
1053 |
<p class='wpdberror'><strong>WordPress database error:</strong> [$str]<br /> |
|
|
1054 |
<code>$query</code></p> |
|
|
1055 |
</div>"; |
|
|
1056 |
} |
|
|
1057 |
} |
|
|
1058 |
|
|
|
1059 |
/** |
|
|
1060 |
* Enables showing of database errors. |
|
|
1061 |
* |
|
|
1062 |
* This function should be used only to enable showing of errors. |
|
|
1063 |
* wpdb::hide_errors() should be used instead for hiding of errors. However, |
|
|
1064 |
* this function can be used to enable and disable showing of database |
|
|
1065 |
* errors. |
|
|
1066 |
* |
|
|
1067 |
* @since 0.71 |
|
|
1068 |
* @see wpdb::hide_errors() |
|
|
1069 |
* |
|
|
1070 |
* @param bool $show Whether to show or hide errors |
|
|
1071 |
* @return bool Old value for showing errors. |
|
|
1072 |
*/ |
|
|
1073 |
function show_errors( $show = true ) { |
|
|
1074 |
$errors = $this->show_errors; |
|
|
1075 |
$this->show_errors = $show; |
|
|
1076 |
return $errors; |
|
|
1077 |
} |
|
|
1078 |
|
|
|
1079 |
/** |
|
|
1080 |
* Disables showing of database errors. |
|
|
1081 |
* |
|
|
1082 |
* By default database errors are not shown. |
|
|
1083 |
* |
|
|
1084 |
* @since 0.71 |
|
|
1085 |
* @see wpdb::show_errors() |
|
|
1086 |
* |
|
|
1087 |
* @return bool Whether showing of errors was active |
|
|
1088 |
*/ |
|
|
1089 |
function hide_errors() { |
|
|
1090 |
$show = $this->show_errors; |
|
|
1091 |
$this->show_errors = false; |
|
|
1092 |
return $show; |
|
|
1093 |
} |
|
|
1094 |
|
|
|
1095 |
/** |
|
|
1096 |
* Whether to suppress database errors. |
|
|
1097 |
* |
|
|
1098 |
* By default database errors are suppressed, with a simple |
|
|
1099 |
* call to this function they can be enabled. |
|
|
1100 |
* |
|
|
1101 |
* @since 2.5.0 |
|
|
1102 |
* @see wpdb::hide_errors() |
|
|
1103 |
* @param bool $suppress Optional. New value. Defaults to true. |
|
|
1104 |
* @return bool Old value |
|
|
1105 |
*/ |
|
|
1106 |
function suppress_errors( $suppress = true ) { |
|
|
1107 |
$errors = $this->suppress_errors; |
|
|
1108 |
$this->suppress_errors = (bool) $suppress; |
|
|
1109 |
return $errors; |
|
|
1110 |
} |
|
|
1111 |
|
|
|
1112 |
/** |
|
|
1113 |
* Kill cached query results. |
|
|
1114 |
* |
|
|
1115 |
* @since 0.71 |
|
|
1116 |
* @return void |
|
|
1117 |
*/ |
|
|
1118 |
function flush() { |
|
|
1119 |
$this->last_result = array(); |
|
|
1120 |
$this->col_info = null; |
|
|
1121 |
$this->last_query = null; |
|
|
1122 |
$this->rows_affected = $this->num_rows = 0; |
|
|
1123 |
$this->last_error = ''; |
|
|
1124 |
|
|
|
1125 |
if ( is_resource( $this->result ) ) |
|
|
1126 |
mysql_free_result( $this->result ); |
|
|
1127 |
} |
|
|
1128 |
|
|
|
1129 |
/** |
|
|
1130 |
* Connect to and select database |
|
|
1131 |
* |
|
|
1132 |
* @since 3.0.0 |
|
|
1133 |
*/ |
|
|
1134 |
function db_connect() { |
|
|
1135 |
|
|
|
1136 |
$this->is_mysql = true; |
|
|
1137 |
|
|
|
1138 |
$new_link = defined( 'MYSQL_NEW_LINK' ) ? MYSQL_NEW_LINK : true; |
|
|
1139 |
$client_flags = defined( 'MYSQL_CLIENT_FLAGS' ) ? MYSQL_CLIENT_FLAGS : 0; |
|
|
1140 |
|
|
|
1141 |
if ( WP_DEBUG ) { |
|
|
1142 |
$this->dbh = mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, $new_link, $client_flags ); |
|
|
1143 |
} else { |
|
|
1144 |
$this->dbh = @mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, $new_link, $client_flags ); |
|
|
1145 |
} |
|
|
1146 |
|
|
|
1147 |
if ( !$this->dbh ) { |
|
|
1148 |
wp_load_translations_early(); |
|
|
1149 |
$this->bail( sprintf( __( " |
|
|
1150 |
<h1>Error establishing a database connection</h1> |
|
|
1151 |
<p>This either means that the username and password information in your <code>wp-config.php</code> file is incorrect or we can't contact the database server at <code>%s</code>. This could mean your host's database server is down.</p> |
|
|
1152 |
<ul> |
|
|
1153 |
<li>Are you sure you have the correct username and password?</li> |
|
|
1154 |
<li>Are you sure that you have typed the correct hostname?</li> |
|
|
1155 |
<li>Are you sure that the database server is running?</li> |
|
|
1156 |
</ul> |
|
|
1157 |
<p>If you're unsure what these terms mean you should probably contact your host. If you still need help you can always visit the <a href='http://wordpress.org/support/'>WordPress Support Forums</a>.</p> |
|
|
1158 |
" ), htmlspecialchars( $this->dbhost, ENT_QUOTES ) ), 'db_connect_fail' ); |
|
|
1159 |
|
|
|
1160 |
return; |
|
|
1161 |
} |
|
|
1162 |
|
|
|
1163 |
$this->set_charset( $this->dbh ); |
|
|
1164 |
|
|
|
1165 |
$this->ready = true; |
|
|
1166 |
|
|
|
1167 |
$this->select( $this->dbname, $this->dbh ); |
|
|
1168 |
} |
|
|
1169 |
|
|
|
1170 |
/** |
|
|
1171 |
* Perform a MySQL database query, using current database connection. |
|
|
1172 |
* |
|
|
1173 |
* More information can be found on the codex page. |
|
|
1174 |
* |
|
|
1175 |
* @since 0.71 |
|
|
1176 |
* |
|
|
1177 |
* @param string $query Database query |
|
|
1178 |
* @return int|false Number of rows affected/selected or false on error |
|
|
1179 |
*/ |
|
|
1180 |
function query( $query ) { |
|
|
1181 |
if ( ! $this->ready ) |
|
|
1182 |
return false; |
|
|
1183 |
/** |
|
|
1184 |
* Filter the database query. |
|
|
1185 |
* |
|
|
1186 |
* Some queries are made before the plugins have been loaded, and thus cannot be filtered with this method. |
|
|
1187 |
* |
|
|
1188 |
* @since 2.1.0 |
|
|
1189 |
* @param string $query Database query. |
|
|
1190 |
*/ |
|
|
1191 |
$query = apply_filters( 'query', $query ); |
|
|
1192 |
|
|
|
1193 |
$return_val = 0; |
|
|
1194 |
$this->flush(); |
|
|
1195 |
|
|
|
1196 |
// Log how the function was called |
|
|
1197 |
$this->func_call = "\$db->query(\"$query\")"; |
|
|
1198 |
|
|
|
1199 |
// Keep track of the last query for debug.. |
|
|
1200 |
$this->last_query = $query; |
|
|
1201 |
|
|
|
1202 |
if ( defined( 'SAVEQUERIES' ) && SAVEQUERIES ) |
|
|
1203 |
$this->timer_start(); |
|
|
1204 |
|
|
|
1205 |
$this->result = @mysql_query( $query, $this->dbh ); |
|
|
1206 |
$this->num_queries++; |
|
|
1207 |
|
|
|
1208 |
if ( defined( 'SAVEQUERIES' ) && SAVEQUERIES ) |
|
|
1209 |
$this->queries[] = array( $query, $this->timer_stop(), $this->get_caller() ); |
|
|
1210 |
|
|
|
1211 |
// If there is an error then take note of it.. |
|
|
1212 |
if ( $this->last_error = mysql_error( $this->dbh ) ) { |
|
|
1213 |
// Clear insert_id on a subsequent failed insert. |
|
|
1214 |
if ( $this->insert_id && preg_match( '/^\s*(insert|replace)\s/i', $query ) ) |
|
|
1215 |
$this->insert_id = 0; |
|
|
1216 |
|
|
|
1217 |
$this->print_error(); |
|
|
1218 |
return false; |
|
|
1219 |
} |
|
|
1220 |
|
|
|
1221 |
if ( preg_match( '/^\s*(create|alter|truncate|drop)\s/i', $query ) ) { |
|
|
1222 |
$return_val = $this->result; |
|
|
1223 |
} elseif ( preg_match( '/^\s*(insert|delete|update|replace)\s/i', $query ) ) { |
|
|
1224 |
$this->rows_affected = mysql_affected_rows( $this->dbh ); |
|
|
1225 |
// Take note of the insert_id |
|
|
1226 |
if ( preg_match( '/^\s*(insert|replace)\s/i', $query ) ) { |
|
|
1227 |
$this->insert_id = mysql_insert_id($this->dbh); |
|
|
1228 |
} |
|
|
1229 |
// Return number of rows affected |
|
|
1230 |
$return_val = $this->rows_affected; |
|
|
1231 |
} else { |
|
|
1232 |
$num_rows = 0; |
|
|
1233 |
while ( $row = @mysql_fetch_object( $this->result ) ) { |
|
|
1234 |
$this->last_result[$num_rows] = $row; |
|
|
1235 |
$num_rows++; |
|
|
1236 |
} |
|
|
1237 |
|
|
|
1238 |
// Log number of rows the query returned |
|
|
1239 |
// and return number of rows selected |
|
|
1240 |
$this->num_rows = $num_rows; |
|
|
1241 |
$return_val = $num_rows; |
|
|
1242 |
} |
|
|
1243 |
|
|
|
1244 |
return $return_val; |
|
|
1245 |
} |
|
|
1246 |
|
|
|
1247 |
/** |
|
|
1248 |
* Insert a row into a table. |
|
|
1249 |
* |
|
|
1250 |
* <code> |
|
|
1251 |
* wpdb::insert( 'table', array( 'column' => 'foo', 'field' => 'bar' ) ) |
|
|
1252 |
* wpdb::insert( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( '%s', '%d' ) ) |
|
|
1253 |
* </code> |
|
|
1254 |
* |
|
|
1255 |
* @since 2.5.0 |
|
|
1256 |
* @see wpdb::prepare() |
|
|
1257 |
* @see wpdb::$field_types |
|
|
1258 |
* @see wp_set_wpdb_vars() |
|
|
1259 |
* |
|
|
1260 |
* @param string $table table name |
|
|
1261 |
* @param array $data Data to insert (in column => value pairs). Both $data columns and $data values should be "raw" (neither should be SQL escaped). |
|
|
1262 |
* @param array|string $format Optional. An array of formats to be mapped to each of the value in $data. If string, that format will be used for all of the values in $data. |
|
|
1263 |
* A format is one of '%d', '%f', '%s' (integer, float, string). If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types. |
|
|
1264 |
* @return int|false The number of rows inserted, or false on error. |
|
|
1265 |
*/ |
|
|
1266 |
function insert( $table, $data, $format = null ) { |
|
|
1267 |
return $this->_insert_replace_helper( $table, $data, $format, 'INSERT' ); |
|
|
1268 |
} |
|
|
1269 |
|
|
|
1270 |
/** |
|
|
1271 |
* Replace a row into a table. |
|
|
1272 |
* |
|
|
1273 |
* <code> |
|
|
1274 |
* wpdb::replace( 'table', array( 'column' => 'foo', 'field' => 'bar' ) ) |
|
|
1275 |
* wpdb::replace( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( '%s', '%d' ) ) |
|
|
1276 |
* </code> |
|
|
1277 |
* |
|
|
1278 |
* @since 3.0.0 |
|
|
1279 |
* @see wpdb::prepare() |
|
|
1280 |
* @see wpdb::$field_types |
|
|
1281 |
* @see wp_set_wpdb_vars() |
|
|
1282 |
* |
|
|
1283 |
* @param string $table table name |
|
|
1284 |
* @param array $data Data to insert (in column => value pairs). Both $data columns and $data values should be "raw" (neither should be SQL escaped). |
|
|
1285 |
* @param array|string $format Optional. An array of formats to be mapped to each of the value in $data. If string, that format will be used for all of the values in $data. |
|
|
1286 |
* A format is one of '%d', '%f', '%s' (integer, float, string). If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types. |
|
|
1287 |
* @return int|false The number of rows affected, or false on error. |
|
|
1288 |
*/ |
|
|
1289 |
function replace( $table, $data, $format = null ) { |
|
|
1290 |
return $this->_insert_replace_helper( $table, $data, $format, 'REPLACE' ); |
|
|
1291 |
} |
|
|
1292 |
|
|
|
1293 |
/** |
|
|
1294 |
* Helper function for insert and replace. |
|
|
1295 |
* |
|
|
1296 |
* Runs an insert or replace query based on $type argument. |
|
|
1297 |
* |
|
|
1298 |
* @access private |
|
|
1299 |
* @since 3.0.0 |
|
|
1300 |
* @see wpdb::prepare() |
|
|
1301 |
* @see wpdb::$field_types |
|
|
1302 |
* @see wp_set_wpdb_vars() |
|
|
1303 |
* |
|
|
1304 |
* @param string $table table name |
|
|
1305 |
* @param array $data Data to insert (in column => value pairs). Both $data columns and $data values should be "raw" (neither should be SQL escaped). |
|
|
1306 |
* @param array|string $format Optional. An array of formats to be mapped to each of the value in $data. If string, that format will be used for all of the values in $data. |
|
|
1307 |
* A format is one of '%d', '%f', '%s' (integer, float, string). If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types. |
|
|
1308 |
* @param string $type Optional. What type of operation is this? INSERT or REPLACE. Defaults to INSERT. |
|
|
1309 |
* @return int|false The number of rows affected, or false on error. |
|
|
1310 |
*/ |
|
|
1311 |
function _insert_replace_helper( $table, $data, $format = null, $type = 'INSERT' ) { |
|
|
1312 |
if ( ! in_array( strtoupper( $type ), array( 'REPLACE', 'INSERT' ) ) ) |
|
|
1313 |
return false; |
|
|
1314 |
$this->insert_id = 0; |
|
|
1315 |
$formats = $format = (array) $format; |
|
|
1316 |
$fields = array_keys( $data ); |
|
|
1317 |
$formatted_fields = array(); |
|
|
1318 |
foreach ( $fields as $field ) { |
|
|
1319 |
if ( !empty( $format ) ) |
|
|
1320 |
$form = ( $form = array_shift( $formats ) ) ? $form : $format[0]; |
|
|
1321 |
elseif ( isset( $this->field_types[$field] ) ) |
|
|
1322 |
$form = $this->field_types[$field]; |
|
|
1323 |
else |
|
|
1324 |
$form = '%s'; |
|
|
1325 |
$formatted_fields[] = $form; |
|
|
1326 |
} |
|
|
1327 |
$sql = "{$type} INTO `$table` (`" . implode( '`,`', $fields ) . "`) VALUES (" . implode( ",", $formatted_fields ) . ")"; |
|
|
1328 |
return $this->query( $this->prepare( $sql, $data ) ); |
|
|
1329 |
} |
|
|
1330 |
|
|
|
1331 |
/** |
|
|
1332 |
* Update a row in the table |
|
|
1333 |
* |
|
|
1334 |
* <code> |
|
|
1335 |
* wpdb::update( 'table', array( 'column' => 'foo', 'field' => 'bar' ), array( 'ID' => 1 ) ) |
|
|
1336 |
* wpdb::update( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( 'ID' => 1 ), array( '%s', '%d' ), array( '%d' ) ) |
|
|
1337 |
* </code> |
|
|
1338 |
* |
|
|
1339 |
* @since 2.5.0 |
|
|
1340 |
* @see wpdb::prepare() |
|
|
1341 |
* @see wpdb::$field_types |
|
|
1342 |
* @see wp_set_wpdb_vars() |
|
|
1343 |
* |
|
|
1344 |
* @param string $table table name |
|
|
1345 |
* @param array $data Data to update (in column => value pairs). Both $data columns and $data values should be "raw" (neither should be SQL escaped). |
|
|
1346 |
* @param array $where A named array of WHERE clauses (in column => value pairs). Multiple clauses will be joined with ANDs. Both $where columns and $where values should be "raw". |
|
|
1347 |
* @param array|string $format Optional. An array of formats to be mapped to each of the values in $data. If string, that format will be used for all of the values in $data. |
|
|
1348 |
* A format is one of '%d', '%f', '%s' (integer, float, string). If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types. |
|
|
1349 |
* @param array|string $where_format Optional. An array of formats to be mapped to each of the values in $where. If string, that format will be used for all of the items in $where. A format is one of '%d', '%f', '%s' (integer, float, string). If omitted, all values in $where will be treated as strings. |
|
|
1350 |
* @return int|false The number of rows updated, or false on error. |
|
|
1351 |
*/ |
|
|
1352 |
function update( $table, $data, $where, $format = null, $where_format = null ) { |
|
|
1353 |
if ( ! is_array( $data ) || ! is_array( $where ) ) |
|
|
1354 |
return false; |
|
|
1355 |
|
|
|
1356 |
$formats = $format = (array) $format; |
|
|
1357 |
$bits = $wheres = array(); |
|
|
1358 |
foreach ( (array) array_keys( $data ) as $field ) { |
|
|
1359 |
if ( !empty( $format ) ) |
|
|
1360 |
$form = ( $form = array_shift( $formats ) ) ? $form : $format[0]; |
|
|
1361 |
elseif ( isset($this->field_types[$field]) ) |
|
|
1362 |
$form = $this->field_types[$field]; |
|
|
1363 |
else |
|
|
1364 |
$form = '%s'; |
|
|
1365 |
$bits[] = "`$field` = {$form}"; |
|
|
1366 |
} |
|
|
1367 |
|
|
|
1368 |
$where_formats = $where_format = (array) $where_format; |
|
|
1369 |
foreach ( (array) array_keys( $where ) as $field ) { |
|
|
1370 |
if ( !empty( $where_format ) ) |
|
|
1371 |
$form = ( $form = array_shift( $where_formats ) ) ? $form : $where_format[0]; |
|
|
1372 |
elseif ( isset( $this->field_types[$field] ) ) |
|
|
1373 |
$form = $this->field_types[$field]; |
|
|
1374 |
else |
|
|
1375 |
$form = '%s'; |
|
|
1376 |
$wheres[] = "`$field` = {$form}"; |
|
|
1377 |
} |
|
|
1378 |
|
|
|
1379 |
$sql = "UPDATE `$table` SET " . implode( ', ', $bits ) . ' WHERE ' . implode( ' AND ', $wheres ); |
|
|
1380 |
return $this->query( $this->prepare( $sql, array_merge( array_values( $data ), array_values( $where ) ) ) ); |
|
|
1381 |
} |
|
|
1382 |
|
|
|
1383 |
/** |
|
|
1384 |
* Delete a row in the table |
|
|
1385 |
* |
|
|
1386 |
* <code> |
|
|
1387 |
* wpdb::delete( 'table', array( 'ID' => 1 ) ) |
|
|
1388 |
* wpdb::delete( 'table', array( 'ID' => 1 ), array( '%d' ) ) |
|
|
1389 |
* </code> |
|
|
1390 |
* |
|
|
1391 |
* @since 3.4.0 |
|
|
1392 |
* @see wpdb::prepare() |
|
|
1393 |
* @see wpdb::$field_types |
|
|
1394 |
* @see wp_set_wpdb_vars() |
|
|
1395 |
* |
|
|
1396 |
* @param string $table table name |
|
|
1397 |
* @param array $where A named array of WHERE clauses (in column => value pairs). Multiple clauses will be joined with ANDs. Both $where columns and $where values should be "raw". |
|
|
1398 |
* @param array|string $where_format Optional. An array of formats to be mapped to each of the values in $where. If string, that format will be used for all of the items in $where. A format is one of '%d', '%f', '%s' (integer, float, string). If omitted, all values in $where will be treated as strings unless otherwise specified in wpdb::$field_types. |
|
|
1399 |
* @return int|false The number of rows updated, or false on error. |
|
|
1400 |
*/ |
|
|
1401 |
function delete( $table, $where, $where_format = null ) { |
|
|
1402 |
if ( ! is_array( $where ) ) |
|
|
1403 |
return false; |
|
|
1404 |
|
|
|
1405 |
$bits = $wheres = array(); |
|
|
1406 |
|
|
|
1407 |
$where_formats = $where_format = (array) $where_format; |
|
|
1408 |
|
|
|
1409 |
foreach ( array_keys( $where ) as $field ) { |
|
|
1410 |
if ( !empty( $where_format ) ) { |
|
|
1411 |
$form = ( $form = array_shift( $where_formats ) ) ? $form : $where_format[0]; |
|
|
1412 |
} elseif ( isset( $this->field_types[ $field ] ) ) { |
|
|
1413 |
$form = $this->field_types[ $field ]; |
|
|
1414 |
} else { |
|
|
1415 |
$form = '%s'; |
|
|
1416 |
} |
|
|
1417 |
|
|
|
1418 |
$wheres[] = "$field = $form"; |
|
|
1419 |
} |
|
|
1420 |
|
|
|
1421 |
$sql = "DELETE FROM $table WHERE " . implode( ' AND ', $wheres ); |
|
|
1422 |
return $this->query( $this->prepare( $sql, $where ) ); |
|
|
1423 |
} |
|
|
1424 |
|
|
|
1425 |
|
|
|
1426 |
/** |
|
|
1427 |
* Retrieve one variable from the database. |
|
|
1428 |
* |
|
|
1429 |
* Executes a SQL query and returns the value from the SQL result. |
|
|
1430 |
* If the SQL result contains more than one column and/or more than one row, this function returns the value in the column and row specified. |
|
|
1431 |
* If $query is null, this function returns the value in the specified column and row from the previous SQL result. |
|
|
1432 |
* |
|
|
1433 |
* @since 0.71 |
|
|
1434 |
* |
|
|
1435 |
* @param string|null $query Optional. SQL query. Defaults to null, use the result from the previous query. |
|
|
1436 |
* @param int $x Optional. Column of value to return. Indexed from 0. |
|
|
1437 |
* @param int $y Optional. Row of value to return. Indexed from 0. |
|
|
1438 |
* @return string|null Database query result (as string), or null on failure |
|
|
1439 |
*/ |
|
|
1440 |
function get_var( $query = null, $x = 0, $y = 0 ) { |
|
|
1441 |
$this->func_call = "\$db->get_var(\"$query\", $x, $y)"; |
|
|
1442 |
if ( $query ) |
|
|
1443 |
$this->query( $query ); |
|
|
1444 |
|
|
|
1445 |
// Extract var out of cached results based x,y vals |
|
|
1446 |
if ( !empty( $this->last_result[$y] ) ) { |
|
|
1447 |
$values = array_values( get_object_vars( $this->last_result[$y] ) ); |
|
|
1448 |
} |
|
|
1449 |
|
|
|
1450 |
// If there is a value return it else return null |
|
|
1451 |
return ( isset( $values[$x] ) && $values[$x] !== '' ) ? $values[$x] : null; |
|
|
1452 |
} |
|
|
1453 |
|
|
|
1454 |
/** |
|
|
1455 |
* Retrieve one row from the database. |
|
|
1456 |
* |
|
|
1457 |
* Executes a SQL query and returns the row from the SQL result. |
|
|
1458 |
* |
|
|
1459 |
* @since 0.71 |
|
|
1460 |
* |
|
|
1461 |
* @param string|null $query SQL query. |
|
|
1462 |
* @param string $output Optional. one of ARRAY_A | ARRAY_N | OBJECT constants. Return an associative array (column => value, ...), |
|
|
1463 |
* a numerically indexed array (0 => value, ...) or an object ( ->column = value ), respectively. |
|
|
1464 |
* @param int $y Optional. Row to return. Indexed from 0. |
|
|
1465 |
* @return mixed Database query result in format specified by $output or null on failure |
|
|
1466 |
*/ |
|
|
1467 |
function get_row( $query = null, $output = OBJECT, $y = 0 ) { |
|
|
1468 |
$this->func_call = "\$db->get_row(\"$query\",$output,$y)"; |
|
|
1469 |
if ( $query ) |
|
|
1470 |
$this->query( $query ); |
|
|
1471 |
else |
|
|
1472 |
return null; |
|
|
1473 |
|
|
|
1474 |
if ( !isset( $this->last_result[$y] ) ) |
|
|
1475 |
return null; |
|
|
1476 |
|
|
|
1477 |
if ( $output == OBJECT ) { |
|
|
1478 |
return $this->last_result[$y] ? $this->last_result[$y] : null; |
|
|
1479 |
} elseif ( $output == ARRAY_A ) { |
|
|
1480 |
return $this->last_result[$y] ? get_object_vars( $this->last_result[$y] ) : null; |
|
|
1481 |
} elseif ( $output == ARRAY_N ) { |
|
|
1482 |
return $this->last_result[$y] ? array_values( get_object_vars( $this->last_result[$y] ) ) : null; |
|
|
1483 |
} else { |
|
|
1484 |
$this->print_error( " \$db->get_row(string query, output type, int offset) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N" ); |
|
|
1485 |
} |
|
|
1486 |
} |
|
|
1487 |
|
|
|
1488 |
/** |
|
|
1489 |
* Retrieve one column from the database. |
|
|
1490 |
* |
|
|
1491 |
* Executes a SQL query and returns the column from the SQL result. |
|
|
1492 |
* If the SQL result contains more than one column, this function returns the column specified. |
|
|
1493 |
* If $query is null, this function returns the specified column from the previous SQL result. |
|
|
1494 |
* |
|
|
1495 |
* @since 0.71 |
|
|
1496 |
* |
|
|
1497 |
* @param string|null $query Optional. SQL query. Defaults to previous query. |
|
|
1498 |
* @param int $x Optional. Column to return. Indexed from 0. |
|
|
1499 |
* @return array Database query result. Array indexed from 0 by SQL result row number. |
|
|
1500 |
*/ |
|
|
1501 |
function get_col( $query = null , $x = 0 ) { |
|
|
1502 |
if ( $query ) |
|
|
1503 |
$this->query( $query ); |
|
|
1504 |
|
|
|
1505 |
$new_array = array(); |
|
|
1506 |
// Extract the column values |
|
|
1507 |
for ( $i = 0, $j = count( $this->last_result ); $i < $j; $i++ ) { |
|
|
1508 |
$new_array[$i] = $this->get_var( null, $x, $i ); |
|
|
1509 |
} |
|
|
1510 |
return $new_array; |
|
|
1511 |
} |
|
|
1512 |
|
|
|
1513 |
/** |
|
|
1514 |
* Retrieve an entire SQL result set from the database (i.e., many rows) |
|
|
1515 |
* |
|
|
1516 |
* Executes a SQL query and returns the entire SQL result. |
|
|
1517 |
* |
|
|
1518 |
* @since 0.71 |
|
|
1519 |
* |
|
|
1520 |
* @param string $query SQL query. |
|
|
1521 |
* @param string $output Optional. Any of ARRAY_A | ARRAY_N | OBJECT | OBJECT_K constants. With one of the first three, return an array of rows indexed from 0 by SQL result row number. |
|
|
1522 |
* Each row is an associative array (column => value, ...), a numerically indexed array (0 => value, ...), or an object. ( ->column = value ), respectively. |
|
|
1523 |
* With OBJECT_K, return an associative array of row objects keyed by the value of each row's first column's value. Duplicate keys are discarded. |
|
|
1524 |
* @return mixed Database query results |
|
|
1525 |
*/ |
|
|
1526 |
function get_results( $query = null, $output = OBJECT ) { |
|
|
1527 |
$this->func_call = "\$db->get_results(\"$query\", $output)"; |
|
|
1528 |
|
|
|
1529 |
if ( $query ) |
|
|
1530 |
$this->query( $query ); |
|
|
1531 |
else |
|
|
1532 |
return null; |
|
|
1533 |
|
|
|
1534 |
$new_array = array(); |
|
|
1535 |
if ( $output == OBJECT ) { |
|
|
1536 |
// Return an integer-keyed array of row objects |
|
|
1537 |
return $this->last_result; |
|
|
1538 |
} elseif ( $output == OBJECT_K ) { |
|
|
1539 |
// Return an array of row objects with keys from column 1 |
|
|
1540 |
// (Duplicates are discarded) |
|
|
1541 |
foreach ( $this->last_result as $row ) { |
|
|
1542 |
$var_by_ref = get_object_vars( $row ); |
|
|
1543 |
$key = array_shift( $var_by_ref ); |
|
|
1544 |
if ( ! isset( $new_array[ $key ] ) ) |
|
|
1545 |
$new_array[ $key ] = $row; |
|
|
1546 |
} |
|
|
1547 |
return $new_array; |
|
|
1548 |
} elseif ( $output == ARRAY_A || $output == ARRAY_N ) { |
|
|
1549 |
// Return an integer-keyed array of... |
|
|
1550 |
if ( $this->last_result ) { |
|
|
1551 |
foreach( (array) $this->last_result as $row ) { |
|
|
1552 |
if ( $output == ARRAY_N ) { |
|
|
1553 |
// ...integer-keyed row arrays |
|
|
1554 |
$new_array[] = array_values( get_object_vars( $row ) ); |
|
|
1555 |
} else { |
|
|
1556 |
// ...column name-keyed row arrays |
|
|
1557 |
$new_array[] = get_object_vars( $row ); |
|
|
1558 |
} |
|
|
1559 |
} |
|
|
1560 |
} |
|
|
1561 |
return $new_array; |
|
|
1562 |
} |
|
|
1563 |
return null; |
|
|
1564 |
} |
|
|
1565 |
|
|
|
1566 |
/** |
|
|
1567 |
* Load the column metadata from the last query. |
|
|
1568 |
* |
|
|
1569 |
* @since 3.5.0 |
|
|
1570 |
* |
|
|
1571 |
* @access protected |
|
|
1572 |
*/ |
|
|
1573 |
protected function load_col_info() { |
|
|
1574 |
if ( $this->col_info ) |
|
|
1575 |
return; |
|
|
1576 |
|
|
|
1577 |
for ( $i = 0; $i < @mysql_num_fields( $this->result ); $i++ ) { |
|
|
1578 |
$this->col_info[ $i ] = @mysql_fetch_field( $this->result, $i ); |
|
|
1579 |
} |
|
|
1580 |
} |
|
|
1581 |
|
|
|
1582 |
/** |
|
|
1583 |
* Retrieve column metadata from the last query. |
|
|
1584 |
* |
|
|
1585 |
* @since 0.71 |
|
|
1586 |
* |
|
|
1587 |
* @param string $info_type Optional. Type one of name, table, def, max_length, not_null, primary_key, multiple_key, unique_key, numeric, blob, type, unsigned, zerofill |
|
|
1588 |
* @param int $col_offset Optional. 0: col name. 1: which table the col's in. 2: col's max length. 3: if the col is numeric. 4: col's type |
|
|
1589 |
* @return mixed Column Results |
|
|
1590 |
*/ |
|
|
1591 |
function get_col_info( $info_type = 'name', $col_offset = -1 ) { |
|
|
1592 |
$this->load_col_info(); |
|
|
1593 |
|
|
|
1594 |
if ( $this->col_info ) { |
|
|
1595 |
if ( $col_offset == -1 ) { |
|
|
1596 |
$i = 0; |
|
|
1597 |
$new_array = array(); |
|
|
1598 |
foreach( (array) $this->col_info as $col ) { |
|
|
1599 |
$new_array[$i] = $col->{$info_type}; |
|
|
1600 |
$i++; |
|
|
1601 |
} |
|
|
1602 |
return $new_array; |
|
|
1603 |
} else { |
|
|
1604 |
return $this->col_info[$col_offset]->{$info_type}; |
|
|
1605 |
} |
|
|
1606 |
} |
|
|
1607 |
} |
|
|
1608 |
|
|
|
1609 |
/** |
|
|
1610 |
* Starts the timer, for debugging purposes. |
|
|
1611 |
* |
|
|
1612 |
* @since 1.5.0 |
|
|
1613 |
* |
|
|
1614 |
* @return true |
|
|
1615 |
*/ |
|
|
1616 |
function timer_start() { |
|
|
1617 |
$this->time_start = microtime( true ); |
|
|
1618 |
return true; |
|
|
1619 |
} |
|
|
1620 |
|
|
|
1621 |
/** |
|
|
1622 |
* Stops the debugging timer. |
|
|
1623 |
* |
|
|
1624 |
* @since 1.5.0 |
|
|
1625 |
* |
|
|
1626 |
* @return float Total time spent on the query, in seconds |
|
|
1627 |
*/ |
|
|
1628 |
function timer_stop() { |
|
|
1629 |
return ( microtime( true ) - $this->time_start ); |
|
|
1630 |
} |
|
|
1631 |
|
|
|
1632 |
/** |
|
|
1633 |
* Wraps errors in a nice header and footer and dies. |
|
|
1634 |
* |
|
|
1635 |
* Will not die if wpdb::$show_errors is false. |
|
|
1636 |
* |
|
|
1637 |
* @since 1.5.0 |
|
|
1638 |
* |
|
|
1639 |
* @param string $message The Error message |
|
|
1640 |
* @param string $error_code Optional. A Computer readable string to identify the error. |
|
|
1641 |
* @return false|void |
|
|
1642 |
*/ |
|
|
1643 |
function bail( $message, $error_code = '500' ) { |
|
|
1644 |
if ( !$this->show_errors ) { |
|
|
1645 |
if ( class_exists( 'WP_Error' ) ) |
|
|
1646 |
$this->error = new WP_Error($error_code, $message); |
|
|
1647 |
else |
|
|
1648 |
$this->error = $message; |
|
|
1649 |
return false; |
|
|
1650 |
} |
|
|
1651 |
wp_die($message); |
|
|
1652 |
} |
|
|
1653 |
|
|
|
1654 |
/** |
|
|
1655 |
* Whether MySQL database is at least the required minimum version. |
|
|
1656 |
* |
|
|
1657 |
* @since 2.5.0 |
|
|
1658 |
* @uses $wp_version |
|
|
1659 |
* @uses $required_mysql_version |
|
|
1660 |
* |
|
|
1661 |
* @return WP_Error |
|
|
1662 |
*/ |
|
|
1663 |
function check_database_version() { |
|
|
1664 |
global $wp_version, $required_mysql_version; |
|
|
1665 |
// Make sure the server has the required MySQL version |
|
|
1666 |
if ( version_compare($this->db_version(), $required_mysql_version, '<') ) |
|
|
1667 |
return new WP_Error('database_version', sprintf( __( '<strong>ERROR</strong>: WordPress %1$s requires MySQL %2$s or higher' ), $wp_version, $required_mysql_version )); |
|
|
1668 |
} |
|
|
1669 |
|
|
|
1670 |
/** |
|
|
1671 |
* Whether the database supports collation. |
|
|
1672 |
* |
|
|
1673 |
* Called when WordPress is generating the table scheme. |
|
|
1674 |
* |
|
|
1675 |
* @since 2.5.0 |
|
|
1676 |
* @deprecated 3.5.0 |
|
|
1677 |
* @deprecated Use wpdb::has_cap( 'collation' ) |
|
|
1678 |
* |
|
|
1679 |
* @return bool True if collation is supported, false if version does not |
|
|
1680 |
*/ |
|
|
1681 |
function supports_collation() { |
|
|
1682 |
_deprecated_function( __FUNCTION__, '3.5', 'wpdb::has_cap( \'collation\' )' ); |
|
|
1683 |
return $this->has_cap( 'collation' ); |
|
|
1684 |
} |
|
|
1685 |
|
|
|
1686 |
/** |
|
|
1687 |
* The database character collate. |
|
|
1688 |
* |
|
|
1689 |
* @since 3.5.0 |
|
|
1690 |
* |
|
|
1691 |
* @return string The database character collate. |
|
|
1692 |
*/ |
|
|
1693 |
public function get_charset_collate() { |
|
|
1694 |
$charset_collate = ''; |
|
|
1695 |
|
|
|
1696 |
if ( ! empty( $this->charset ) ) |
|
|
1697 |
$charset_collate = "DEFAULT CHARACTER SET $this->charset"; |
|
|
1698 |
if ( ! empty( $this->collate ) ) |
|
|
1699 |
$charset_collate .= " COLLATE $this->collate"; |
|
|
1700 |
|
|
|
1701 |
return $charset_collate; |
|
|
1702 |
} |
|
|
1703 |
|
|
|
1704 |
/** |
|
|
1705 |
* Determine if a database supports a particular feature. |
|
|
1706 |
* |
|
|
1707 |
* @since 2.7.0 |
|
|
1708 |
* @see wpdb::db_version() |
|
|
1709 |
* |
|
|
1710 |
* @param string $db_cap The feature to check for. |
|
|
1711 |
* @return bool |
|
|
1712 |
*/ |
|
|
1713 |
function has_cap( $db_cap ) { |
|
|
1714 |
$version = $this->db_version(); |
|
|
1715 |
|
|
|
1716 |
switch ( strtolower( $db_cap ) ) { |
|
|
1717 |
case 'collation' : // @since 2.5.0 |
|
|
1718 |
case 'group_concat' : // @since 2.7.0 |
|
|
1719 |
case 'subqueries' : // @since 2.7.0 |
|
|
1720 |
return version_compare( $version, '4.1', '>=' ); |
|
|
1721 |
case 'set_charset' : |
|
|
1722 |
return version_compare( $version, '5.0.7', '>=' ); |
|
|
1723 |
}; |
|
|
1724 |
|
|
|
1725 |
return false; |
|
|
1726 |
} |
|
|
1727 |
|
|
|
1728 |
/** |
|
|
1729 |
* Retrieve the name of the function that called wpdb. |
|
|
1730 |
* |
|
|
1731 |
* Searches up the list of functions until it reaches |
|
|
1732 |
* the one that would most logically had called this method. |
|
|
1733 |
* |
|
|
1734 |
* @since 2.5.0 |
|
|
1735 |
* |
|
|
1736 |
* @return string The name of the calling function |
|
|
1737 |
*/ |
|
|
1738 |
function get_caller() { |
|
|
1739 |
return wp_debug_backtrace_summary( __CLASS__ ); |
|
|
1740 |
} |
|
|
1741 |
|
|
|
1742 |
/** |
|
|
1743 |
* The database version number. |
|
|
1744 |
* |
|
|
1745 |
* @since 2.7.0 |
|
|
1746 |
* |
|
|
1747 |
* @return false|string false on failure, version number on success |
|
|
1748 |
*/ |
|
|
1749 |
function db_version() { |
|
|
1750 |
return preg_replace( '/[^0-9.].*/', '', mysql_get_server_info( $this->dbh ) ); |
|
|
1751 |
} |
|
|
1752 |
} |