<?php

/**

 * These functions are needed to load WordPress.

 *

 * @package WordPress

 */

/**

 * Return the HTTP protocol sent by the server.

 *

 * @since 4.4.0

 *

 * @return string The HTTP protocol. Default: HTTP/1.0.

 */

function wp_get_server_protocol() {

	$protocol = $_SERVER['SERVER_PROTOCOL'];

	if ( ! in_array( $protocol, array( 'HTTP/1.1', 'HTTP/2', 'HTTP/2.0' ) ) ) {

		$protocol = 'HTTP/1.0';

	}

	return $protocol;

}

/**

 * Turn register globals off.

 *

 * @since 2.1.0

 * @access private

 */

function wp_unregister_GLOBALS() {

		return;

		die( 'GLOBALS overwrite attempt detected' );

	// Variables that shouldn't be unset

	$no_unset = array( 'GLOBALS', '_GET', '_POST', '_COOKIE', '_REQUEST', '_SERVER', '_ENV', '_FILES', 'table_prefix' );

	$input = array_merge( $_GET, $_POST, $_COOKIE, $_SERVER, $_ENV, $_FILES, isset( $_SESSION ) && is_array( $_SESSION ) ? $_SESSION : array() );

		}

}

/**

 * Fix `$_SERVER` variables for various setups.

 *

 * @since 3.0.0

 * @access private

 *

 * @global string $PHP_SELF The filename of the currently executing script,

 *                          relative to the document root.

 */

function wp_fix_server_vars() {

	global $PHP_SELF;

	$default_server_values = array(

		'SERVER_SOFTWARE' => '',

	);

	$_SERVER = array_merge( $default_server_values, $_SERVER );

	// Fix for IIS when running with PHP ISAPI

	if ( empty( $_SERVER['REQUEST_URI'] ) || ( PHP_SAPI != 'cgi-fcgi' && preg_match( '/^Microsoft-IIS\//', $_SERVER['SERVER_SOFTWARE'] ) ) ) {

		if ( isset( $_SERVER['HTTP_X_ORIGINAL_URL'] ) ) {

			$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_ORIGINAL_URL'];

			$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_REWRITE_URL'];

		} else {

			// Use ORIG_PATH_INFO if there is no PATH_INFO

				$_SERVER['PATH_INFO'] = $_SERVER['ORIG_PATH_INFO'];

			// Some IIS + PHP configurations puts the script-name in the path-info (No need to append it twice)

			if ( isset( $_SERVER['PATH_INFO'] ) ) {

					$_SERVER['REQUEST_URI'] = $_SERVER['PATH_INFO'];

					$_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] . $_SERVER['PATH_INFO'];

			}

			// Append the query string if it exists and isn't null

			if ( ! empty( $_SERVER['QUERY_STRING'] ) ) {

				$_SERVER['REQUEST_URI'] .= '?' . $_SERVER['QUERY_STRING'];

			}

		}

	}

	// Fix for PHP as CGI hosts that set SCRIPT_FILENAME to something ending in php.cgi for all requests

		$_SERVER['SCRIPT_FILENAME'] = $_SERVER['PATH_TRANSLATED'];

	// Fix for Dreamhost and other PHP as CGI hosts

		unset( $_SERVER['PATH_INFO'] );

	// Fix empty PHP_SELF

	$PHP_SELF = $_SERVER['PHP_SELF'];

}

/**

 * Check for the required PHP version, and the MySQL extension or

 * a database drop-in.

 *

 * Dies if requirements are not met.

 *

 * @since 3.0.0

 * @access private

 *

 * @global string $required_php_version The required PHP version string.

 * @global string $wp_version           The WordPress version string.

 */

function wp_check_php_mysql_versions() {

	global $required_php_version, $wp_version;

	$php_version = phpversion();

	if ( version_compare( $required_php_version, $php_version, '>' ) ) {

		wp_load_translations_early();

		$protocol = wp_get_server_protocol();

		header( sprintf( '%s 500 Internal Server Error', $protocol ), true, 500 );

		header( 'Content-Type: text/html; charset=utf-8' );

		/* translators: 1: Current PHP version number, 2: WordPress version number, 3: Minimum required PHP version number */

	}

	if ( ! extension_loaded( 'mysql' ) && ! extension_loaded( 'mysqli' ) && ! extension_loaded( 'mysqlnd' ) && ! file_exists( WP_CONTENT_DIR . '/db.php' ) ) {

		wp_load_translations_early();

	}

}

/**

 * Don't load all of WordPress when handling a favicon.ico request.

 *

 * Instead, send the headers for a zero-length favicon and bail.

 *

 * @since 3.0.0

 */

function wp_favicon_request() {

	if ( '/favicon.ico' == $_SERVER['REQUEST_URI'] ) {

		exit;

	}

}

/**

 * Die with a maintenance message when conditions are met.

 *

 * Checks for a file in the WordPress root directory named ".maintenance".

 * This file will contain the variable $upgrading, set to the time the file

 * was created. If the file was created less than 10 minutes ago, WordPress

 * enters maintenance mode and displays a message.

 *

 * The default message can be replaced by using a drop-in (maintenance.php in

 * the wp-content directory).

 *

 * @since 3.0.0

 * @access private

 *

 * @global int $upgrading the unix timestamp marking when upgrading WordPress began.

 */

function wp_maintenance() {

		return;

	global $upgrading;

	include( ABSPATH . '.maintenance' );

	// If the $upgrading timestamp is older than 10 minutes, don't die.

		return;

	/**

	 * Filters whether to enable maintenance mode.

	 *

	 * This filter runs before it can be used by plugins. It is designed for

	 * non-web runtimes. If this filter returns true, maintenance mode will be

	 * active and the request will end. If false, the request will be allowed to

	 * continue processing even if maintenance mode should be active.

	 *

	 * @since 4.6.0

	 *

	 * @param bool $enable_checks Whether to enable maintenance mode. Default true.

	 * @param int  $upgrading     The timestamp set in the .maintenance file.

	 */

	if ( ! apply_filters( 'enable_maintenance_mode', true, $upgrading ) ) {

		return;

	}

	if ( file_exists( WP_CONTENT_DIR . '/maintenance.php' ) ) {

		require_once( WP_CONTENT_DIR . '/maintenance.php' );

		die();

	}

	wp_load_translations_early();

	header( 'Retry-After: 600' );

}

/**

 * Start the WordPress micro-timer.

 *

 * @since 0.71

 * @access private

 *

 * @global float $timestart Unix timestamp set at the beginning of the page load.

 * @see timer_stop()

 *

 * @return bool Always returns true.

 */

function timer_start() {

	global $timestart;

	$timestart = microtime( true );

	return true;

}

/**

 * Retrieve or display the time from the page start to when function is called.

 *

 * @since 0.71

 *

 * @global float   $timestart Seconds from when timer_start() is called.

 * @global float   $timeend   Seconds from when function is called.

 *

 * @param int|bool $display   Whether to echo or return the results. Accepts 0|false for return,

 *                            1|true for echo. Default 0|false.

 * @param int      $precision The number of digits from the right of the decimal to display.

 *                            Default 3.

 * @return string The "second.microsecond" finished time calculation. The number is formatted

 *                for human consumption, both localized and rounded.

 */

function timer_stop( $display = 0, $precision = 3 ) {

	global $timestart, $timeend;

	$timetotal = $timeend - $timestart;

		echo $r;

	return $r;

}

/**

 * Set PHP error reporting based on WordPress debug settings.

 *

 * Uses three constants: `WP_DEBUG`, `WP_DEBUG_DISPLAY`, and `WP_DEBUG_LOG`.

 * All three can be defined in wp-config.php. By default, `WP_DEBUG` and

 * `WP_DEBUG_LOG` are set to false, and `WP_DEBUG_DISPLAY` is set to true.

 *

 * When `WP_DEBUG` is true, all PHP notices are reported. WordPress will also

 * display internal notices: when a deprecated WordPress function, function

 * argument, or file is used. Deprecated code may be removed from a later

 * version.

 *

 * It is strongly recommended that plugin and theme developers use `WP_DEBUG`

 * in their development environments.

 *

 * `WP_DEBUG_DISPLAY` and `WP_DEBUG_LOG` perform no function unless `WP_DEBUG`

 * is true.

 *

 * When `WP_DEBUG_DISPLAY` is true, WordPress will force errors to be displayed.

 * `WP_DEBUG_DISPLAY` defaults to true. Defining it as null prevents WordPress

 * from changing the global configuration setting. Defining `WP_DEBUG_DISPLAY`

 * as false will force errors to be hidden.

 *

 *

 * Errors are never displayed for XML-RPC, REST, and Ajax requests.

 *

 * @since 3.0.0

 * @access private

 */

function wp_debug_mode() {

	/**

	 * Filters whether to allow the debug mode check to occur.

	 *

	 * This filter runs before it can be used by plugins. It is designed for

	 * non-web run-times. Returning false causes the `WP_DEBUG` and related

	 * constants to not be checked and the default php values for errors

	 * will be used unless you take care to update them yourself.

	 *

	 * @since 4.6.0

	 *

	 * @param bool $enable_debug_mode Whether to enable debug mode checks to occur. Default true.

	 */

		return;

	}

	if ( WP_DEBUG ) {

		error_reporting( E_ALL );

			ini_set( 'display_errors', 1 );

			ini_set( 'display_errors', 0 );

			ini_set( 'log_errors', 1 );

		}

	} else {

		error_reporting( E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING | E_RECOVERABLE_ERROR );

	}

		@ini_set( 'display_errors', 0 );

	}

}

/**

 * Set the location of the language directory.

 *

 * To set directory manually, define the `WP_LANG_DIR` constant

 * in wp-config.php.

 *

 * If the language directory exists within `WP_CONTENT_DIR`, it

 * is used. Otherwise the language directory is assumed to live

 * in `WPINC`.

 *

 * @since 3.0.0

 * @access private

 */

function wp_set_lang_dir() {

			/**

			 * Server path of the language directory.

			 *

			 * No leading slash, no trailing slash, full path, not relative to ABSPATH

			 *

			 * @since 2.1.0

			 */

			define( 'WP_LANG_DIR', WP_CONTENT_DIR . '/languages' );

				// Old static relative path maintained for limited backward compatibility - won't work in some cases.

				define( 'LANGDIR', 'wp-content/languages' );

			}

		} else {

			/**

			 * Server path of the language directory.

			 *

			 * No leading slash, no trailing slash, full path, not relative to `ABSPATH`.

			 *

			 * @since 2.1.0

			 */

			define( 'WP_LANG_DIR', ABSPATH . WPINC . '/languages' );

				// Old relative path maintained for backward compatibility.

				define( 'LANGDIR', WPINC . '/languages' );

			}

		}

	}

}

/**

 * Load the database class file and instantiate the `$wpdb` global.

 *

 * @since 2.5.0

 *

 * @global wpdb $wpdb The WordPress database class.

 */

function require_wp_db() {

	global $wpdb;

	require_once( ABSPATH . WPINC . '/wp-db.php' );

		require_once( WP_CONTENT_DIR . '/db.php' );