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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 {@internal Version Unknown}} |
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*/ |
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define('OBJECT_K', 'OBJECT_K', false); |
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/** |
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* @since 0.71 |
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*/ |
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define('ARRAY_A', 'ARRAY_A', false); |
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/** |
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* @since 0.71 |
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*/ |
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define('ARRAY_N', 'ARRAY_N', false); |
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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 with your class. You can name it wpdb also, since |
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* this file will not be included, if the other file is |
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* available. |
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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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* @final |
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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 {@internal Version Unknown}} |
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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 {@internal Version Unknown}} |
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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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* Saved result of the last query made |
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* |
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* @since 1.2.0 |
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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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* Saved info on the table column |
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* |
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* @since 1.2.0 |
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* @access private |
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* @var array |
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*/ |
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var $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 0.71 |
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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 2.5.0 |
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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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* 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 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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* WordPress Categories 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 $categories; |
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/** |
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* WordPress Post to Category 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 $post2cat; |
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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 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 {@internal Version Unknown}} |
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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 Comment Metadata table |
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* |
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* @since 2.9 |
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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 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 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 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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* 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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* List of WordPress tables |
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* |
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* @since {@internal Version Unknown}} |
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* @access private |
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* @var array |
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*/ |
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var $tables = array('users', 'usermeta', 'posts', 'categories', 'post2cat', 'comments', 'links', 'link2cat', 'options', |
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'postmeta', '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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* @since 2.9.0 |
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* @access private |
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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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* Format specifiers for DB columns. Columns not listed here default to %s. Initialized in wp-settings.php. |
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* |
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* Keys are colmn 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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* @access public |
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* @war 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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* Whether to use mysql_real_escape_string |
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* |
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* @since 2.8.0 |
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* @access public |
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* @var bool |
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*/ |
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var $real_escape = false; |
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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 private |
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* @var string |
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*/ |
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var $dbuser; |
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/** |
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* Connects to the database server and selects a database |
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* |
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* PHP4 compatibility layer for calling the PHP5 constructor. |
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* |
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* @uses wpdb::__construct() Passes parameters and returns result |
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* @since 0.71 |
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* |
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* @param string $dbuser MySQL database user |
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* @param string $dbpassword MySQL database password |
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* @param string $dbname MySQL database name |
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* @param string $dbhost MySQL database host |
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*/ |
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function wpdb($dbuser, $dbpassword, $dbname, $dbhost) { |
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return $this->__construct($dbuser, $dbpassword, $dbname, $dbhost); |
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} |
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/** |
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* Connects to the database server and selects a database |
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* |
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* PHP5 style constructor for compatibility with PHP5. Does |
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* the actual setting up of the class properties and connection |
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* to the database. |
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* |
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* @since 2.0.8 |
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* |
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* @param string $dbuser MySQL database user |
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* @param string $dbpassword MySQL database password |
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* @param string $dbname MySQL database name |
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* @param string $dbhost MySQL database host |
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*/ |
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function __construct($dbuser, $dbpassword, $dbname, $dbhost) { |
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register_shutdown_function(array(&$this, "__destruct")); |
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if ( WP_DEBUG ) |
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$this->show_errors(); |
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if ( defined('DB_CHARSET') ) |
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$this->charset = DB_CHARSET; |
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if ( defined('DB_COLLATE') ) |
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$this->collate = DB_COLLATE; |
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$this->dbuser = $dbuser; |
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$this->dbh = @mysql_connect($dbhost, $dbuser, $dbpassword, true); |
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if (!$this->dbh) { |
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$this->bail(sprintf(/*WP_I18N_DB_CONN_ERROR*/" |
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<h1>Error establishing a database connection</h1> |
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<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> |
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<ul> |
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<li>Are you sure you have the correct username and password?</li> |
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<li>Are you sure that you have typed the correct hostname?</li> |
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<li>Are you sure that the database server is running?</li> |
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</ul> |
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<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> |
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"/*/WP_I18N_DB_CONN_ERROR*/, $dbhost), 'db_connect_fail'); |
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return; |
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} |
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$this->ready = true; |
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if ( $this->has_cap( 'collation' ) && !empty($this->charset) ) { |
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if ( function_exists('mysql_set_charset') ) { |
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mysql_set_charset($this->charset, $this->dbh); |
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$this->real_escape = true; |
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} else { |
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$collation_query = "SET NAMES '{$this->charset}'"; |
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if ( !empty($this->collate) ) |
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$collation_query .= " COLLATE '{$this->collate}'"; |
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$this->query($collation_query); |
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} |
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} |
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$this->select($dbname); |
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} |
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/** |
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* PHP5 style destructor and will run when database object is destroyed. |
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* |
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* @since 2.0.8 |
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* |
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* @return bool Always true |
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*/ |
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function __destruct() { |
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return true; |
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} |
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/** |
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* Sets the table prefix for the WordPress tables. |
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* |
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* Also allows for the CUSTOM_USER_TABLE and CUSTOM_USER_META_TABLE to |
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* override the WordPress users and usersmeta tables that would otherwise be determined by the $prefix. |
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* |
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* @since 2.5.0 |
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* |
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* @param string $prefix Alphanumeric name for the new prefix. |
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* @return string|WP_Error Old prefix or WP_Error on error |
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*/ |
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function set_prefix($prefix) { |
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if ( preg_match('|[^a-z0-9_]|i', $prefix) ) |
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return new WP_Error('invalid_db_prefix', /*WP_I18N_DB_BAD_PREFIX*/'Invalid database prefix'/*/WP_I18N_DB_BAD_PREFIX*/); |
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$old_prefix = $this->prefix; |
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$this->prefix = $prefix; |
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foreach ( (array) $this->tables as $table ) |
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$this->$table = $this->prefix . $table; |
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if ( defined('CUSTOM_USER_TABLE') ) |
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$this->users = CUSTOM_USER_TABLE; |
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if ( defined('CUSTOM_USER_META_TABLE') ) |
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$this->usermeta = CUSTOM_USER_META_TABLE; |
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return $old_prefix; |
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} |
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/** |
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|
446 |
* Selects a database using the current database connection. |
|
|
447 |
* |
|
|
448 |
* The database name will be changed based on the current database |
|
|
449 |
* connection. On failure, the execution will bail and display an DB error. |
|
|
450 |
* |
|
|
451 |
* @since 0.71 |
|
|
452 |
* |
|
|
453 |
* @param string $db MySQL database name |
|
|
454 |
* @return null Always null. |
|
|
455 |
*/ |
|
|
456 |
function select($db) { |
|
|
457 |
if (!@mysql_select_db($db, $this->dbh)) { |
|
|
458 |
$this->ready = false; |
|
|
459 |
$this->bail(sprintf(/*WP_I18N_DB_SELECT_DB*/' |
|
|
460 |
<h1>Can’t select database</h1> |
|
|
461 |
<p>We were able to connect to the database server (which means your username and password is okay) but not able to select the <code>%1$s</code> database.</p> |
|
|
462 |
<ul> |
|
|
463 |
<li>Are you sure it exists?</li> |
|
|
464 |
<li>Does the user <code>%2$s</code> have permission to use the <code>%1$s</code> database?</li> |
|
|
465 |
<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> |
|
|
466 |
</ul> |
|
|
467 |
<p>If you don\'t know how to setup 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>'/*/WP_I18N_DB_SELECT_DB*/, $db, $this->dbuser), 'db_select_fail'); |
|
|
468 |
return; |
|
|
469 |
} |
|
|
470 |
} |
|
|
471 |
|
|
|
472 |
function _weak_escape($string) { |
|
|
473 |
return addslashes($string); |
|
|
474 |
} |
|
|
475 |
|
|
|
476 |
function _real_escape($string) { |
|
|
477 |
if ( $this->dbh && $this->real_escape ) |
|
|
478 |
return mysql_real_escape_string( $string, $this->dbh ); |
|
|
479 |
else |
|
|
480 |
return addslashes( $string ); |
|
|
481 |
} |
|
|
482 |
|
|
|
483 |
function _escape($data) { |
|
|
484 |
if ( is_array($data) ) { |
|
|
485 |
foreach ( (array) $data as $k => $v ) { |
|
|
486 |
if ( is_array($v) ) |
|
|
487 |
$data[$k] = $this->_escape( $v ); |
|
|
488 |
else |
|
|
489 |
$data[$k] = $this->_real_escape( $v ); |
|
|
490 |
} |
|
|
491 |
} else { |
|
|
492 |
$data = $this->_real_escape( $data ); |
|
|
493 |
} |
|
|
494 |
|
|
|
495 |
return $data; |
|
|
496 |
} |
|
|
497 |
|
|
|
498 |
/** |
|
|
499 |
* Escapes content for insertion into the database using addslashes(), for security |
|
|
500 |
* |
|
|
501 |
* @since 0.71 |
|
|
502 |
* |
|
|
503 |
* @param string|array $data |
|
|
504 |
* @return string query safe string |
|
|
505 |
*/ |
|
|
506 |
function escape($data) { |
|
|
507 |
if ( is_array($data) ) { |
|
|
508 |
foreach ( (array) $data as $k => $v ) { |
|
|
509 |
if ( is_array($v) ) |
|
|
510 |
$data[$k] = $this->escape( $v ); |
|
|
511 |
else |
|
|
512 |
$data[$k] = $this->_weak_escape( $v ); |
|
|
513 |
} |
|
|
514 |
} else { |
|
|
515 |
$data = $this->_weak_escape( $data ); |
|
|
516 |
} |
|
|
517 |
|
|
|
518 |
return $data; |
|
|
519 |
} |
|
|
520 |
|
|
|
521 |
/** |
|
|
522 |
* Escapes content by reference for insertion into the database, for security |
|
|
523 |
* |
|
|
524 |
* @since 2.3.0 |
|
|
525 |
* |
|
|
526 |
* @param string $s |
|
|
527 |
*/ |
|
|
528 |
function escape_by_ref(&$string) { |
|
|
529 |
$string = $this->_real_escape( $string ); |
|
|
530 |
} |
|
|
531 |
|
|
|
532 |
/** |
|
|
533 |
* Prepares a SQL query for safe execution. Uses sprintf()-like syntax. |
|
|
534 |
* |
|
|
535 |
* This function only supports a small subset of the sprintf syntax; it only supports %d (decimal number), %s (string). |
|
|
536 |
* Does not support sign, padding, alignment, width or precision specifiers. |
|
|
537 |
* Does not support argument numbering/swapping. |
|
|
538 |
* |
|
|
539 |
* May be called like {@link http://php.net/sprintf sprintf()} or like {@link http://php.net/vsprintf vsprintf()}. |
|
|
540 |
* |
|
|
541 |
* Both %d and %s should be left unquoted in the query string. |
|
|
542 |
* |
|
|
543 |
* <code> |
|
|
544 |
* wpdb::prepare( "SELECT * FROM `table` WHERE `column` = %s AND `field` = %d", "foo", 1337 ) |
|
|
545 |
* </code> |
|
|
546 |
* |
|
|
547 |
* @link http://php.net/sprintf Description of syntax. |
|
|
548 |
* @since 2.3.0 |
|
|
549 |
* |
|
|
550 |
* @param string $query Query statement with sprintf()-like placeholders |
|
|
551 |
* @param array|mixed $args The array of variables to substitute into the query's placeholders if being called like {@link http://php.net/vsprintf vsprintf()}, or the first variable to substitute into the query's placeholders if being called like {@link http://php.net/sprintf sprintf()}. |
|
|
552 |
* @param mixed $args,... further variables to substitute into the query's placeholders if being called like {@link http://php.net/sprintf sprintf()}. |
|
|
553 |
* @return null|string Sanitized query string |
|
|
554 |
*/ |
|
|
555 |
function prepare($query = null) { // ( $query, *$args ) |
|
|
556 |
if ( is_null( $query ) ) |
|
|
557 |
return; |
|
|
558 |
$args = func_get_args(); |
|
|
559 |
array_shift($args); |
|
|
560 |
// If args were passed as an array (as in vsprintf), move them up |
|
|
561 |
if ( isset($args[0]) && is_array($args[0]) ) |
|
|
562 |
$args = $args[0]; |
|
|
563 |
$query = str_replace("'%s'", '%s', $query); // in case someone mistakenly already singlequoted it |
|
|
564 |
$query = str_replace('"%s"', '%s', $query); // doublequote unquoting |
|
|
565 |
$query = str_replace('%s', "'%s'", $query); // quote the strings |
|
|
566 |
array_walk($args, array(&$this, 'escape_by_ref')); |
|
|
567 |
return @vsprintf($query, $args); |
|
|
568 |
} |
|
|
569 |
|
|
|
570 |
/** |
|
|
571 |
* Print SQL/DB error. |
|
|
572 |
* |
|
|
573 |
* @since 0.71 |
|
|
574 |
* @global array $EZSQL_ERROR Stores error information of query and error string |
|
|
575 |
* |
|
|
576 |
* @param string $str The error to display |
|
|
577 |
* @return bool False if the showing of errors is disabled. |
|
|
578 |
*/ |
|
|
579 |
function print_error($str = '') { |
|
|
580 |
global $EZSQL_ERROR; |
|
|
581 |
|
|
|
582 |
if (!$str) $str = mysql_error($this->dbh); |
|
|
583 |
$EZSQL_ERROR[] = array ('query' => $this->last_query, 'error_str' => $str); |
|
|
584 |
|
|
|
585 |
if ( $this->suppress_errors ) |
|
|
586 |
return false; |
|
|
587 |
|
|
|
588 |
if ( $caller = $this->get_caller() ) |
|
|
589 |
$error_str = sprintf(/*WP_I18N_DB_QUERY_ERROR_FULL*/'WordPress database error %1$s for query %2$s made by %3$s'/*/WP_I18N_DB_QUERY_ERROR_FULL*/, $str, $this->last_query, $caller); |
|
|
590 |
else |
|
|
591 |
$error_str = sprintf(/*WP_I18N_DB_QUERY_ERROR*/'WordPress database error %1$s for query %2$s'/*/WP_I18N_DB_QUERY_ERROR*/, $str, $this->last_query); |
|
|
592 |
|
|
|
593 |
$log_error = true; |
|
|
594 |
if ( ! function_exists('error_log') ) |
|
|
595 |
$log_error = false; |
|
|
596 |
|
|
|
597 |
$log_file = @ini_get('error_log'); |
|
|
598 |
if ( !empty($log_file) && ('syslog' != $log_file) && !@is_writable($log_file) ) |
|
|
599 |
$log_error = false; |
|
|
600 |
|
|
|
601 |
if ( $log_error ) |
|
|
602 |
@error_log($error_str, 0); |
|
|
603 |
|
|
|
604 |
// Is error output turned on or not.. |
|
|
605 |
if ( !$this->show_errors ) |
|
|
606 |
return false; |
|
|
607 |
|
|
|
608 |
$str = htmlspecialchars($str, ENT_QUOTES); |
|
|
609 |
$query = htmlspecialchars($this->last_query, ENT_QUOTES); |
|
|
610 |
|
|
|
611 |
// If there is an error then take note of it |
|
|
612 |
print "<div id='error'> |
|
|
613 |
<p class='wpdberror'><strong>WordPress database error:</strong> [$str]<br /> |
|
|
614 |
<code>$query</code></p> |
|
|
615 |
</div>"; |
|
|
616 |
} |
|
|
617 |
|
|
|
618 |
/** |
|
|
619 |
* Enables showing of database errors. |
|
|
620 |
* |
|
|
621 |
* This function should be used only to enable showing of errors. |
|
|
622 |
* wpdb::hide_errors() should be used instead for hiding of errors. However, |
|
|
623 |
* this function can be used to enable and disable showing of database |
|
|
624 |
* errors. |
|
|
625 |
* |
|
|
626 |
* @since 0.71 |
|
|
627 |
* |
|
|
628 |
* @param bool $show Whether to show or hide errors |
|
|
629 |
* @return bool Old value for showing errors. |
|
|
630 |
*/ |
|
|
631 |
function show_errors( $show = true ) { |
|
|
632 |
$errors = $this->show_errors; |
|
|
633 |
$this->show_errors = $show; |
|
|
634 |
return $errors; |
|
|
635 |
} |
|
|
636 |
|
|
|
637 |
/** |
|
|
638 |
* Disables showing of database errors. |
|
|
639 |
* |
|
|
640 |
* @since 0.71 |
|
|
641 |
* |
|
|
642 |
* @return bool Whether showing of errors was active or not |
|
|
643 |
*/ |
|
|
644 |
function hide_errors() { |
|
|
645 |
$show = $this->show_errors; |
|
|
646 |
$this->show_errors = false; |
|
|
647 |
return $show; |
|
|
648 |
} |
|
|
649 |
|
|
|
650 |
/** |
|
|
651 |
* Whether to suppress database errors. |
|
|
652 |
* |
|
|
653 |
* @param unknown_type $suppress |
|
|
654 |
* @return unknown |
|
|
655 |
*/ |
|
|
656 |
function suppress_errors( $suppress = true ) { |
|
|
657 |
$errors = $this->suppress_errors; |
|
|
658 |
$this->suppress_errors = $suppress; |
|
|
659 |
return $errors; |
|
|
660 |
} |
|
|
661 |
|
|
|
662 |
/** |
|
|
663 |
* Kill cached query results. |
|
|
664 |
* |
|
|
665 |
* @since 0.71 |
|
|
666 |
*/ |
|
|
667 |
function flush() { |
|
|
668 |
$this->last_result = array(); |
|
|
669 |
$this->col_info = null; |
|
|
670 |
$this->last_query = null; |
|
|
671 |
} |
|
|
672 |
|
|
|
673 |
/** |
|
|
674 |
* Perform a MySQL database query, using current database connection. |
|
|
675 |
* |
|
|
676 |
* More information can be found on the codex page. |
|
|
677 |
* |
|
|
678 |
* @since 0.71 |
|
|
679 |
* |
|
|
680 |
* @param string $query |
|
|
681 |
* @return int|false Number of rows affected/selected or false on error |
|
|
682 |
*/ |
|
|
683 |
function query($query) { |
|
|
684 |
if ( ! $this->ready ) |
|
|
685 |
return false; |
|
|
686 |
|
|
|
687 |
// filter the query, if filters are available |
|
|
688 |
// NOTE: some queries are made before the plugins have been loaded, and thus cannot be filtered with this method |
|
|
689 |
if ( function_exists('apply_filters') ) |
|
|
690 |
$query = apply_filters('query', $query); |
|
|
691 |
|
|
|
692 |
// initialise return |
|
|
693 |
$return_val = 0; |
|
|
694 |
$this->flush(); |
|
|
695 |
|
|
|
696 |
// Log how the function was called |
|
|
697 |
$this->func_call = "\$db->query(\"$query\")"; |
|
|
698 |
|
|
|
699 |
// Keep track of the last query for debug.. |
|
|
700 |
$this->last_query = $query; |
|
|
701 |
|
|
|
702 |
// Perform the query via std mysql_query function.. |
|
|
703 |
if ( defined('SAVEQUERIES') && SAVEQUERIES ) |
|
|
704 |
$this->timer_start(); |
|
|
705 |
|
|
|
706 |
$this->result = @mysql_query($query, $this->dbh); |
|
|
707 |
++$this->num_queries; |
|
|
708 |
|
|
|
709 |
if ( defined('SAVEQUERIES') && SAVEQUERIES ) |
|
|
710 |
$this->queries[] = array( $query, $this->timer_stop(), $this->get_caller() ); |
|
|
711 |
|
|
|
712 |
// If there is an error then take note of it.. |
|
|
713 |
if ( $this->last_error = mysql_error($this->dbh) ) { |
|
|
714 |
$this->print_error(); |
|
|
715 |
return false; |
|
|
716 |
} |
|
|
717 |
|
|
|
718 |
if ( preg_match("/^\\s*(insert|delete|update|replace|alter) /i",$query) ) { |
|
|
719 |
$this->rows_affected = mysql_affected_rows($this->dbh); |
|
|
720 |
// Take note of the insert_id |
|
|
721 |
if ( preg_match("/^\\s*(insert|replace) /i",$query) ) { |
|
|
722 |
$this->insert_id = mysql_insert_id($this->dbh); |
|
|
723 |
} |
|
|
724 |
// Return number of rows affected |
|
|
725 |
$return_val = $this->rows_affected; |
|
|
726 |
} else { |
|
|
727 |
$i = 0; |
|
|
728 |
while ($i < @mysql_num_fields($this->result)) { |
|
|
729 |
$this->col_info[$i] = @mysql_fetch_field($this->result); |
|
|
730 |
$i++; |
|
|
731 |
} |
|
|
732 |
$num_rows = 0; |
|
|
733 |
while ( $row = @mysql_fetch_object($this->result) ) { |
|
|
734 |
$this->last_result[$num_rows] = $row; |
|
|
735 |
$num_rows++; |
|
|
736 |
} |
|
|
737 |
|
|
|
738 |
@mysql_free_result($this->result); |
|
|
739 |
|
|
|
740 |
// Log number of rows the query returned |
|
|
741 |
$this->num_rows = $num_rows; |
|
|
742 |
|
|
|
743 |
// Return number of rows selected |
|
|
744 |
$return_val = $this->num_rows; |
|
|
745 |
} |
|
|
746 |
|
|
|
747 |
return $return_val; |
|
|
748 |
} |
|
|
749 |
|
|
|
750 |
/** |
|
|
751 |
* Insert a row into a table. |
|
|
752 |
* |
|
|
753 |
* <code> |
|
|
754 |
* wpdb::insert( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( '%s', '%d' ) ) |
|
|
755 |
* </code> |
|
|
756 |
* |
|
|
757 |
* @since 2.5.0 |
|
|
758 |
* @see wpdb::prepare() |
|
|
759 |
* |
|
|
760 |
* @param string $table table name |
|
|
761 |
* @param array $data Data to insert (in column => value pairs). Both $data columns and $data values should be "raw" (neither should be SQL escaped). |
|
|
762 |
* @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. A format is one of '%d', '%s' (decimal number, string). If omitted, all values in $data will be treated as strings. |
|
|
763 |
* @return int|false The number of rows inserted, or false on error. |
|
|
764 |
*/ |
|
|
765 |
function insert($table, $data, $format = null) { |
|
|
766 |
$formats = $format = (array) $format; |
|
|
767 |
$fields = array_keys($data); |
|
|
768 |
$formatted_fields = array(); |
|
|
769 |
foreach ( $fields as $field ) { |
|
|
770 |
if ( !empty($format) ) |
|
|
771 |
$form = ( $form = array_shift($formats) ) ? $form : $format[0]; |
|
|
772 |
elseif ( isset($this->field_types[$field]) ) |
|
|
773 |
$form = $this->field_types[$field]; |
|
|
774 |
else |
|
|
775 |
$form = '%s'; |
|
|
776 |
$formatted_fields[] = $form; |
|
|
777 |
} |
|
|
778 |
$sql = "INSERT INTO `$table` (`" . implode( '`,`', $fields ) . "`) VALUES ('" . implode( "','", $formatted_fields ) . "')"; |
|
|
779 |
return $this->query( $this->prepare( $sql, $data) ); |
|
|
780 |
} |
|
|
781 |
|
|
|
782 |
|
|
|
783 |
/** |
|
|
784 |
* Update a row in the table |
|
|
785 |
* |
|
|
786 |
* <code> |
|
|
787 |
* wpdb::update( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( 'ID' => 1 ), array( '%s', '%d' ), array( '%d' ) ) |
|
|
788 |
* </code> |
|
|
789 |
* |
|
|
790 |
* @since 2.5.0 |
|
|
791 |
* @see wpdb::prepare() |
|
|
792 |
* |
|
|
793 |
* @param string $table table name |
|
|
794 |
* @param array $data Data to update (in column => value pairs). Both $data columns and $data values should be "raw" (neither should be SQL escaped). |
|
|
795 |
* @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". |
|
|
796 |
* @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. A format is one of '%d', '%s' (decimal number, string). If omitted, all values in $data will be treated as strings. |
|
|
797 |
* @param array|string $format_where (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', '%s' (decimal number, string). If omitted, all values in $where will be treated as strings. |
|
|
798 |
* @return int|false The number of rows updated, or false on error. |
|
|
799 |
*/ |
|
|
800 |
function update($table, $data, $where, $format = null, $where_format = null) { |
|
|
801 |
if ( !is_array( $where ) ) |
|
|
802 |
return false; |
|
|
803 |
|
|
|
804 |
$formats = $format = (array) $format; |
|
|
805 |
$bits = $wheres = array(); |
|
|
806 |
foreach ( (array) array_keys($data) as $field ) { |
|
|
807 |
if ( !empty($format) ) |
|
|
808 |
$form = ( $form = array_shift($formats) ) ? $form : $format[0]; |
|
|
809 |
elseif ( isset($this->field_types[$field]) ) |
|
|
810 |
$form = $this->field_types[$field]; |
|
|
811 |
else |
|
|
812 |
$form = '%s'; |
|
|
813 |
$bits[] = "`$field` = {$form}"; |
|
|
814 |
} |
|
|
815 |
|
|
|
816 |
$where_formats = $where_format = (array) $where_format; |
|
|
817 |
foreach ( (array) array_keys($where) as $field ) { |
|
|
818 |
if ( !empty($where_format) ) |
|
|
819 |
$form = ( $form = array_shift($where_formats) ) ? $form : $where_format[0]; |
|
|
820 |
elseif ( isset($this->field_types[$field]) ) |
|
|
821 |
$form = $this->field_types[$field]; |
|
|
822 |
else |
|
|
823 |
$form = '%s'; |
|
|
824 |
$wheres[] = "`$field` = {$form}"; |
|
|
825 |
} |
|
|
826 |
|
|
|
827 |
$sql = "UPDATE `$table` SET " . implode( ', ', $bits ) . ' WHERE ' . implode( ' AND ', $wheres ); |
|
|
828 |
return $this->query( $this->prepare( $sql, array_merge(array_values($data), array_values($where))) ); |
|
|
829 |
} |
|
|
830 |
|
|
|
831 |
/** |
|
|
832 |
* Retrieve one variable from the database. |
|
|
833 |
* |
|
|
834 |
* Executes a SQL query and returns the value from the SQL result. |
|
|
835 |
* 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. |
|
|
836 |
* If $query is null, this function returns the value in the specified column and row from the previous SQL result. |
|
|
837 |
* |
|
|
838 |
* @since 0.71 |
|
|
839 |
* |
|
|
840 |
* @param string|null $query SQL query. If null, use the result from the previous query. |
|
|
841 |
* @param int $x (optional) Column of value to return. Indexed from 0. |
|
|
842 |
* @param int $y (optional) Row of value to return. Indexed from 0. |
|
|
843 |
* @return string Database query result |
|
|
844 |
*/ |
|
|
845 |
function get_var($query=null, $x = 0, $y = 0) { |
|
|
846 |
$this->func_call = "\$db->get_var(\"$query\",$x,$y)"; |
|
|
847 |
if ( $query ) |
|
|
848 |
$this->query($query); |
|
|
849 |
|
|
|
850 |
// Extract var out of cached results based x,y vals |
|
|
851 |
if ( !empty( $this->last_result[$y] ) ) { |
|
|
852 |
$values = array_values(get_object_vars($this->last_result[$y])); |
|
|
853 |
} |
|
|
854 |
|
|
|
855 |
// If there is a value return it else return null |
|
|
856 |
return (isset($values[$x]) && $values[$x]!=='') ? $values[$x] : null; |
|
|
857 |
} |
|
|
858 |
|
|
|
859 |
/** |
|
|
860 |
* Retrieve one row from the database. |
|
|
861 |
* |
|
|
862 |
* Executes a SQL query and returns the row from the SQL result. |
|
|
863 |
* |
|
|
864 |
* @since 0.71 |
|
|
865 |
* |
|
|
866 |
* @param string|null $query SQL query. |
|
|
867 |
* @param string $output (optional) one of ARRAY_A | ARRAY_N | OBJECT constants. Return an associative array (column => value, ...), a numerically indexed array (0 => value, ...) or an object ( ->column = value ), respectively. |
|
|
868 |
* @param int $y (optional) Row to return. Indexed from 0. |
|
|
869 |
* @return mixed Database query result in format specifed by $output |
|
|
870 |
*/ |
|
|
871 |
function get_row($query = null, $output = OBJECT, $y = 0) { |
|
|
872 |
$this->func_call = "\$db->get_row(\"$query\",$output,$y)"; |
|
|
873 |
if ( $query ) |
|
|
874 |
$this->query($query); |
|
|
875 |
else |
|
|
876 |
return null; |
|
|
877 |
|
|
|
878 |
if ( !isset($this->last_result[$y]) ) |
|
|
879 |
return null; |
|
|
880 |
|
|
|
881 |
if ( $output == OBJECT ) { |
|
|
882 |
return $this->last_result[$y] ? $this->last_result[$y] : null; |
|
|
883 |
} elseif ( $output == ARRAY_A ) { |
|
|
884 |
return $this->last_result[$y] ? get_object_vars($this->last_result[$y]) : null; |
|
|
885 |
} elseif ( $output == ARRAY_N ) { |
|
|
886 |
return $this->last_result[$y] ? array_values(get_object_vars($this->last_result[$y])) : null; |
|
|
887 |
} else { |
|
|
888 |
$this->print_error(/*WP_I18N_DB_GETROW_ERROR*/" \$db->get_row(string query, output type, int offset) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N"/*/WP_I18N_DB_GETROW_ERROR*/); |
|
|
889 |
} |
|
|
890 |
} |
|
|
891 |
|
|
|
892 |
/** |
|
|
893 |
* Retrieve one column from the database. |
|
|
894 |
* |
|
|
895 |
* Executes a SQL query and returns the column from the SQL result. |
|
|
896 |
* If the SQL result contains more than one column, this function returns the column specified. |
|
|
897 |
* If $query is null, this function returns the specified column from the previous SQL result. |
|
|
898 |
* |
|
|
899 |
* @since 0.71 |
|
|
900 |
* |
|
|
901 |
* @param string|null $query SQL query. If null, use the result from the previous query. |
|
|
902 |
* @param int $x Column to return. Indexed from 0. |
|
|
903 |
* @return array Database query result. Array indexed from 0 by SQL result row number. |
|
|
904 |
*/ |
|
|
905 |
function get_col($query = null , $x = 0) { |
|
|
906 |
if ( $query ) |
|
|
907 |
$this->query($query); |
|
|
908 |
|
|
|
909 |
$new_array = array(); |
|
|
910 |
// Extract the column values |
|
|
911 |
for ( $i=0; $i < count($this->last_result); $i++ ) { |
|
|
912 |
$new_array[$i] = $this->get_var(null, $x, $i); |
|
|
913 |
} |
|
|
914 |
return $new_array; |
|
|
915 |
} |
|
|
916 |
|
|
|
917 |
/** |
|
|
918 |
* Retrieve an entire SQL result set from the database (i.e., many rows) |
|
|
919 |
* |
|
|
920 |
* Executes a SQL query and returns the entire SQL result. |
|
|
921 |
* |
|
|
922 |
* @since 0.71 |
|
|
923 |
* |
|
|
924 |
* @param string $query SQL query. |
|
|
925 |
* @param string $output (optional) ane of ARRAY_A | ARRAY_N | OBJECT | OBJECT_K constants. With one of the first three, return an array of rows indexed from 0 by SQL result row number. Each row is an associative array (column => value, ...), a numerically indexed array (0 => value, ...), or an object. ( ->column = value ), respectively. With OBJECT_K, return an associative array of row objects keyed by the value of each row's first column's value. Duplicate keys are discarded. |
|
|
926 |
* @return mixed Database query results |
|
|
927 |
*/ |
|
|
928 |
function get_results($query = null, $output = OBJECT) { |
|
|
929 |
$this->func_call = "\$db->get_results(\"$query\", $output)"; |
|
|
930 |
|
|
|
931 |
if ( $query ) |
|
|
932 |
$this->query($query); |
|
|
933 |
else |
|
|
934 |
return null; |
|
|
935 |
|
|
|
936 |
if ( $output == OBJECT ) { |
|
|
937 |
// Return an integer-keyed array of row objects |
|
|
938 |
return $this->last_result; |
|
|
939 |
} elseif ( $output == OBJECT_K ) { |
|
|
940 |
// Return an array of row objects with keys from column 1 |
|
|
941 |
// (Duplicates are discarded) |
|
|
942 |
foreach ( $this->last_result as $row ) { |
|
|
943 |
$key = array_shift( get_object_vars( $row ) ); |
|
|
944 |
if ( !isset( $new_array[ $key ] ) ) |
|
|
945 |
$new_array[ $key ] = $row; |
|
|
946 |
} |
|
|
947 |
return $new_array; |
|
|
948 |
} elseif ( $output == ARRAY_A || $output == ARRAY_N ) { |
|
|
949 |
// Return an integer-keyed array of... |
|
|
950 |
if ( $this->last_result ) { |
|
|
951 |
$i = 0; |
|
|
952 |
foreach( (array) $this->last_result as $row ) { |
|
|
953 |
if ( $output == ARRAY_N ) { |
|
|
954 |
// ...integer-keyed row arrays |
|
|
955 |
$new_array[$i] = array_values( get_object_vars( $row ) ); |
|
|
956 |
} else { |
|
|
957 |
// ...column name-keyed row arrays |
|
|
958 |
$new_array[$i] = get_object_vars( $row ); |
|
|
959 |
} |
|
|
960 |
++$i; |
|
|
961 |
} |
|
|
962 |
return $new_array; |
|
|
963 |
} |
|
|
964 |
} |
|
|
965 |
} |
|
|
966 |
|
|
|
967 |
/** |
|
|
968 |
* Retrieve column metadata from the last query. |
|
|
969 |
* |
|
|
970 |
* @since 0.71 |
|
|
971 |
* |
|
|
972 |
* @param string $info_type one of name, table, def, max_length, not_null, primary_key, multiple_key, unique_key, numeric, blob, type, unsigned, zerofill |
|
|
973 |
* @param int $col_offset 0: col name. 1: which table the col's in. 2: col's max length. 3: if the col is numeric. 4: col's type |
|
|
974 |
* @return mixed Column Results |
|
|
975 |
*/ |
|
|
976 |
function get_col_info($info_type = 'name', $col_offset = -1) { |
|
|
977 |
if ( $this->col_info ) { |
|
|
978 |
if ( $col_offset == -1 ) { |
|
|
979 |
$i = 0; |
|
|
980 |
foreach( (array) $this->col_info as $col ) { |
|
|
981 |
$new_array[$i] = $col->{$info_type}; |
|
|
982 |
$i++; |
|
|
983 |
} |
|
|
984 |
return $new_array; |
|
|
985 |
} else { |
|
|
986 |
return $this->col_info[$col_offset]->{$info_type}; |
|
|
987 |
} |
|
|
988 |
} |
|
|
989 |
} |
|
|
990 |
|
|
|
991 |
/** |
|
|
992 |
* Starts the timer, for debugging purposes. |
|
|
993 |
* |
|
|
994 |
* @since 1.5.0 |
|
|
995 |
* |
|
|
996 |
* @return true |
|
|
997 |
*/ |
|
|
998 |
function timer_start() { |
|
|
999 |
$mtime = microtime(); |
|
|
1000 |
$mtime = explode(' ', $mtime); |
|
|
1001 |
$this->time_start = $mtime[1] + $mtime[0]; |
|
|
1002 |
return true; |
|
|
1003 |
} |
|
|
1004 |
|
|
|
1005 |
/** |
|
|
1006 |
* Stops the debugging timer. |
|
|
1007 |
* |
|
|
1008 |
* @since 1.5.0 |
|
|
1009 |
* |
|
|
1010 |
* @return int Total time spent on the query, in milliseconds |
|
|
1011 |
*/ |
|
|
1012 |
function timer_stop() { |
|
|
1013 |
$mtime = microtime(); |
|
|
1014 |
$mtime = explode(' ', $mtime); |
|
|
1015 |
$time_end = $mtime[1] + $mtime[0]; |
|
|
1016 |
$time_total = $time_end - $this->time_start; |
|
|
1017 |
return $time_total; |
|
|
1018 |
} |
|
|
1019 |
|
|
|
1020 |
/** |
|
|
1021 |
* Wraps errors in a nice header and footer and dies. |
|
|
1022 |
* |
|
|
1023 |
* Will not die if wpdb::$show_errors is true |
|
|
1024 |
* |
|
|
1025 |
* @since 1.5.0 |
|
|
1026 |
* |
|
|
1027 |
* @param string $message The Error message |
|
|
1028 |
* @param string $error_code (optional) A Computer readable string to identify the error. |
|
|
1029 |
* @return false|void |
|
|
1030 |
*/ |
|
|
1031 |
function bail($message, $error_code = '500') { |
|
|
1032 |
if ( !$this->show_errors ) { |
|
|
1033 |
if ( class_exists('WP_Error') ) |
|
|
1034 |
$this->error = new WP_Error($error_code, $message); |
|
|
1035 |
else |
|
|
1036 |
$this->error = $message; |
|
|
1037 |
return false; |
|
|
1038 |
} |
|
|
1039 |
wp_die($message); |
|
|
1040 |
} |
|
|
1041 |
|
|
|
1042 |
/** |
|
|
1043 |
* Whether or not MySQL database is at least the required minimum version. |
|
|
1044 |
* |
|
|
1045 |
* @since 2.5.0 |
|
|
1046 |
* @uses $wp_version |
|
|
1047 |
* |
|
|
1048 |
* @return WP_Error |
|
|
1049 |
*/ |
|
|
1050 |
function check_database_version() |
|
|
1051 |
{ |
|
|
1052 |
global $wp_version; |
|
|
1053 |
// Make sure the server has MySQL 4.1.2 |
|
|
1054 |
if ( version_compare($this->db_version(), '4.1.2', '<') ) |
|
|
1055 |
return new WP_Error('database_version',sprintf(__('<strong>ERROR</strong>: WordPress %s requires MySQL 4.1.2 or higher'), $wp_version)); |
|
|
1056 |
} |
|
|
1057 |
|
|
|
1058 |
/** |
|
|
1059 |
* Whether of not the database supports collation. |
|
|
1060 |
* |
|
|
1061 |
* Called when WordPress is generating the table scheme. |
|
|
1062 |
* |
|
|
1063 |
* @since 2.5.0 |
|
|
1064 |
* |
|
|
1065 |
* @return bool True if collation is supported, false if version does not |
|
|
1066 |
*/ |
|
|
1067 |
function supports_collation() { |
|
|
1068 |
return $this->has_cap( 'collation' ); |
|
|
1069 |
} |
|
|
1070 |
|
|
|
1071 |
/** |
|
|
1072 |
* Generic function to determine if a database supports a particular feature |
|
|
1073 |
* @param string $db_cap the feature |
|
|
1074 |
* @param false|string|resource $dbh_or_table (not implemented) Which database to test. False = the currently selected database, string = the database containing the specified table, resource = the database corresponding to the specified mysql resource. |
|
|
1075 |
* @return bool |
|
|
1076 |
*/ |
|
|
1077 |
function has_cap( $db_cap ) { |
|
|
1078 |
$version = $this->db_version(); |
|
|
1079 |
|
|
|
1080 |
switch ( strtolower( $db_cap ) ) : |
|
|
1081 |
case 'collation' : // @since 2.5.0 |
|
|
1082 |
case 'group_concat' : // @since 2.7 |
|
|
1083 |
case 'subqueries' : // @since 2.7 |
|
|
1084 |
return version_compare($version, '4.1', '>='); |
|
|
1085 |
break; |
|
|
1086 |
endswitch; |
|
|
1087 |
|
|
|
1088 |
return false; |
|
|
1089 |
} |
|
|
1090 |
|
|
|
1091 |
/** |
|
|
1092 |
* Retrieve the name of the function that called wpdb. |
|
|
1093 |
* |
|
|
1094 |
* Requires PHP 4.3 and searches up the list of functions until it reaches |
|
|
1095 |
* the one that would most logically had called this method. |
|
|
1096 |
* |
|
|
1097 |
* @since 2.5.0 |
|
|
1098 |
* |
|
|
1099 |
* @return string The name of the calling function |
|
|
1100 |
*/ |
|
|
1101 |
function get_caller() { |
|
|
1102 |
// requires PHP 4.3+ |
|
|
1103 |
if ( !is_callable('debug_backtrace') ) |
|
|
1104 |
return ''; |
|
|
1105 |
|
|
|
1106 |
$bt = debug_backtrace(); |
|
|
1107 |
$caller = array(); |
|
|
1108 |
|
|
|
1109 |
$bt = array_reverse( $bt ); |
|
|
1110 |
foreach ( (array) $bt as $call ) { |
|
|
1111 |
if ( @$call['class'] == __CLASS__ ) |
|
|
1112 |
continue; |
|
|
1113 |
$function = $call['function']; |
|
|
1114 |
if ( isset( $call['class'] ) ) |
|
|
1115 |
$function = $call['class'] . "->$function"; |
|
|
1116 |
$caller[] = $function; |
|
|
1117 |
} |
|
|
1118 |
$caller = join( ', ', $caller ); |
|
|
1119 |
|
|
|
1120 |
return $caller; |
|
|
1121 |
} |
|
|
1122 |
|
|
|
1123 |
/** |
|
|
1124 |
* The database version number |
|
|
1125 |
* @param false|string|resource $dbh_or_table (not implemented) Which database to test. False = the currently selected database, string = the database containing the specified table, resource = the database corresponding to the specified mysql resource. |
|
|
1126 |
* @return false|string false on failure, version number on success |
|
|
1127 |
*/ |
|
|
1128 |
function db_version() { |
|
|
1129 |
return preg_replace('/[^0-9.].*/', '', mysql_get_server_info( $this->dbh )); |
|
|
1130 |
} |
|
|
1131 |
} |
|
|
1132 |
|
|
|
1133 |
if ( ! isset($wpdb) ) { |
|
|
1134 |
/** |
|
|
1135 |
* WordPress Database Object, if it isn't set already in wp-content/db.php |
|
|
1136 |
* @global object $wpdb Creates a new wpdb object based on wp-config.php Constants for the database |
|
|
1137 |
* @since 0.71 |
|
|
1138 |
*/ |
|
|
1139 |
$wpdb = new wpdb(DB_USER, DB_PASSWORD, DB_NAME, DB_HOST); |
|
|
1140 |
} |
|
|
1141 |
?> |