%2$s
PHP extension.',
$wp_version,
$extension
);
}
}
if ( count( $missing_extensions ) > 0 ) {
$protocol = wp_get_server_protocol();
header( sprintf( '%s 500 Internal Server Error', $protocol ), true, 500 );
header( 'Content-Type: text/html; charset=utf-8' );
echo implode( '' . __( 'Your PHP installation appears to be missing the MySQL extension which is required by WordPress.' ) . "
\n"; $message .= '' . sprintf(
/* translators: %s: mysqli. */
__( 'Please check that the %s PHP extension is installed and enabled.' ),
'mysqli
'
) . "
' . sprintf( /* translators: %s: Support forums URL. */ __( 'If you are unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress support forums.' ), __( 'https://wordpress.org/support/forums/' ) ) . "
\n"; $args = array( 'exit' => false, 'code' => 'mysql_not_found', ); wp_die( $message, __( 'Requirements Not Met' ), $args ); exit( 1 ); } } /** * Retrieves the current environment type. * * The type can be set via the `WP_ENVIRONMENT_TYPE` global system variable, * or a constant of the same name. * * Possible values are 'local', 'development', 'staging', and 'production'. * If not set, the type defaults to 'production'. * * @since 5.5.0 * @since 5.5.1 Added the 'local' type. * @since 5.5.1 Removed the ability to alter the list of types. * * @return string The current environment type. */ function wp_get_environment_type() { static $current_env = ''; if ( ! defined( 'WP_RUN_CORE_TESTS' ) && $current_env ) { return $current_env; } $wp_environments = array( 'local', 'development', 'staging', 'production', ); // Add a note about the deprecated WP_ENVIRONMENT_TYPES constant. if ( defined( 'WP_ENVIRONMENT_TYPES' ) && function_exists( '_deprecated_argument' ) ) { if ( function_exists( '__' ) ) { /* translators: %s: WP_ENVIRONMENT_TYPES */ $message = sprintf( __( 'The %s constant is no longer supported.' ), 'WP_ENVIRONMENT_TYPES' ); } else { $message = sprintf( 'The %s constant is no longer supported.', 'WP_ENVIRONMENT_TYPES' ); } _deprecated_argument( 'define()', '5.5.1', $message ); } // Check if the environment variable has been set, if `getenv` is available on the system. if ( function_exists( 'getenv' ) ) { $has_env = getenv( 'WP_ENVIRONMENT_TYPE' ); if ( false !== $has_env ) { $current_env = $has_env; } } // Fetch the environment from a constant, this overrides the global system variable. if ( defined( 'WP_ENVIRONMENT_TYPE' ) && WP_ENVIRONMENT_TYPE ) { $current_env = WP_ENVIRONMENT_TYPE; } // Make sure the environment is an allowed one, and not accidentally set to an invalid value. if ( ! in_array( $current_env, $wp_environments, true ) ) { $current_env = 'production'; } return $current_env; } /** * Retrieves the current development mode. * * The development mode affects how certain parts of the WordPress application behave, * which is relevant when developing for WordPress. * * Development mode can be set via the `WP_DEVELOPMENT_MODE` constant in `wp-config.php`. * Possible values are 'core', 'plugin', 'theme', 'all', or an empty string to disable * development mode. 'all' is a special value to signify that all three development modes * ('core', 'plugin', and 'theme') are enabled. * * Development mode is considered separately from `WP_DEBUG` and wp_get_environment_type(). * It does not affect debugging output, but rather functional nuances in WordPress. * * This function retrieves the currently set development mode value. To check whether * a specific development mode is enabled, use wp_is_development_mode(). * * @since 6.3.0 * * @return string The current development mode. */ function wp_get_development_mode() { static $current_mode = null; if ( ! defined( 'WP_RUN_CORE_TESTS' ) && null !== $current_mode ) { return $current_mode; } $development_mode = WP_DEVELOPMENT_MODE; // Exclusively for core tests, rely on the `$_wp_tests_development_mode` global. if ( defined( 'WP_RUN_CORE_TESTS' ) && isset( $GLOBALS['_wp_tests_development_mode'] ) ) { $development_mode = $GLOBALS['_wp_tests_development_mode']; } $valid_modes = array( 'core', 'plugin', 'theme', 'all', '', ); if ( ! in_array( $development_mode, $valid_modes, true ) ) { $development_mode = ''; } $current_mode = $development_mode; return $current_mode; } /** * Checks whether the site is in the given development mode. * * @since 6.3.0 * * @param string $mode Development mode to check for. Either 'core', 'plugin', 'theme', or 'all'. * @return bool True if the given mode is covered by the current development mode, false otherwise. */ function wp_is_development_mode( $mode ) { $current_mode = wp_get_development_mode(); if ( empty( $current_mode ) ) { return false; } // Return true if the current mode encompasses all modes. if ( 'all' === $current_mode ) { return true; } // Return true if the current mode is the given mode. return $mode === $current_mode; } /** * Ensures all of WordPress is not loaded when handling a favicon.ico request. * * Instead, send the headers for a zero-length favicon and bail. * * @since 3.0.0 * @deprecated 5.4.0 Deprecated in favor of do_favicon(). */ function wp_favicon_request() { if ( '/favicon.ico' === $_SERVER['REQUEST_URI'] ) { header( 'Content-Type: image/vnd.microsoft.icon' ); exit; } } /** * Dies with a maintenance message when conditions are met. * * The default message can be replaced by using a drop-in (maintenance.php in * the wp-content directory). * * @since 3.0.0 * @access private */ function wp_maintenance() { // Return if maintenance mode is disabled. if ( ! wp_is_maintenance_mode() ) { return; } if ( file_exists( WP_CONTENT_DIR . '/maintenance.php' ) ) { require_once WP_CONTENT_DIR . '/maintenance.php'; die(); } require_once ABSPATH . WPINC . '/functions.php'; wp_load_translations_early(); header( 'Retry-After: 600' ); wp_die( __( 'Briefly unavailable for scheduled maintenance. Check back in a minute.' ), __( 'Maintenance' ), 503 ); } /** * Checks if maintenance mode is enabled. * * 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 * is in maintenance mode. * * @since 5.5.0 * * @global int $upgrading The Unix timestamp marking when upgrading WordPress began. * * @return bool True if maintenance mode is enabled, false otherwise. */ function wp_is_maintenance_mode() { global $upgrading; if ( ! file_exists( ABSPATH . '.maintenance' ) || wp_installing() ) { return false; } require ABSPATH . '.maintenance'; // If the $upgrading timestamp is older than 10 minutes, consider maintenance over. if ( ( time() - $upgrading ) >= 10 * MINUTE_IN_SECONDS ) { return false; } // Don't enable maintenance mode while scraping for fatal errors. if ( is_int( $upgrading ) && isset( $_REQUEST['wp_scrape_key'], $_REQUEST['wp_scrape_nonce'] ) ) { $key = stripslashes( $_REQUEST['wp_scrape_key'] ); $nonce = stripslashes( $_REQUEST['wp_scrape_nonce'] ); if ( md5( $upgrading ) === $key && (int) $nonce === $upgrading ) { return false; } } /** * 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 false; } return true; } /** * Gets the time elapsed so far during this PHP script. * * @since 5.8.0 * * @return float Seconds since the PHP script started. */ function timer_float() { return microtime( true ) - $_SERVER['REQUEST_TIME_FLOAT']; } /** * Starts 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; } /** * Retrieves or displays 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; $timeend = microtime( true ); $timetotal = $timeend - $timestart; if ( function_exists( 'number_format_i18n' ) ) { $r = number_format_i18n( $timetotal, $precision ); } else { $r = number_format( $timetotal, $precision ); } if ( $display ) { echo $r; } return $r; } /** * Sets PHP error reporting based on WordPress debug settings. * * Uses three constants: `WP_DEBUG`, `WP_DEBUG_DISPLAY`, and `WP_DEBUG_LOG`. * All three can be defined in wp-config.php. By default, `WP_DEBUG` and * `WP_DEBUG_LOG` are set to false, and `WP_DEBUG_DISPLAY` is set to true. * * When `WP_DEBUG` is true, all PHP notices are reported. WordPress will also * display internal notices: when a deprecated WordPress function, function * argument, or file is used. Deprecated code may be removed from a later * version. * * It is strongly recommended that plugin and theme developers use `WP_DEBUG` * in their development environments. * * `WP_DEBUG_DISPLAY` and `WP_DEBUG_LOG` perform no function unless `WP_DEBUG` * is true. * * When `WP_DEBUG_DISPLAY` is true, WordPress will force errors to be displayed. * `WP_DEBUG_DISPLAY` defaults to true. Defining it as null prevents WordPress * from changing the global configuration setting. Defining `WP_DEBUG_DISPLAY` * as false will force errors to be hidden. * * When `WP_DEBUG_LOG` is true, errors will be logged to `wp-content/debug.log`. * When `WP_DEBUG_LOG` is a valid path, errors will be logged to the specified file. * * Errors are never displayed for XML-RPC, REST, `ms-files.php`, and Ajax requests. * * @since 3.0.0 * @since 5.1.0 `WP_DEBUG_LOG` can be a file path. * @access private */ function wp_debug_mode() { /** * Filters whether to allow the debug mode check to occur. * * This filter runs before it can be used by plugins. It is designed for * non-web runtimes. Returning false causes the `WP_DEBUG` and related * constants to not be checked and the default PHP values for errors * will be used unless you take care to update them yourself. * * To use this filter you must define a `$wp_filter` global before * WordPress loads, usually in `wp-config.php`. * * Example: * * $GLOBALS['wp_filter'] = array( * 'enable_wp_debug_mode_checks' => array( * 10 => array( * array( * 'accepted_args' => 0, * 'function' => function() { * return false; * }, * ), * ), * ), * ); * * @since 4.6.0 * * @param bool $enable_debug_mode Whether to enable debug mode checks to occur. Default true. */ if ( ! apply_filters( 'enable_wp_debug_mode_checks', true ) ) { return; } if ( WP_DEBUG ) { error_reporting( E_ALL ); if ( WP_DEBUG_DISPLAY ) { ini_set( 'display_errors', 1 ); } elseif ( null !== WP_DEBUG_DISPLAY ) { ini_set( 'display_errors', 0 ); } if ( in_array( strtolower( (string) WP_DEBUG_LOG ), array( 'true', '1' ), true ) ) { $log_path = WP_CONTENT_DIR . '/debug.log'; } elseif ( is_string( WP_DEBUG_LOG ) ) { $log_path = WP_DEBUG_LOG; } else { $log_path = false; } if ( $log_path ) { ini_set( 'log_errors', 1 ); ini_set( 'error_log', $log_path ); } } else { error_reporting( E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING | E_RECOVERABLE_ERROR ); } /* * The 'REST_REQUEST' check here is optimistic as the constant is most * likely not set at this point even if it is in fact a REST request. */ if ( defined( 'XMLRPC_REQUEST' ) || defined( 'REST_REQUEST' ) || defined( 'MS_FILES_REQUEST' ) || ( defined( 'WP_INSTALLING' ) && WP_INSTALLING ) || wp_doing_ajax() || wp_is_json_request() ) { ini_set( 'display_errors', 0 ); } } /** * Sets the location of the language directory. * * To set directory manually, define the `WP_LANG_DIR` constant * in wp-config.php. * * If the language directory exists within `WP_CONTENT_DIR`, it * is used. Otherwise the language directory is assumed to live * in `WPINC`. * * @since 3.0.0 * @access private */ function wp_set_lang_dir() { if ( ! defined( 'WP_LANG_DIR' ) ) { if ( file_exists( WP_CONTENT_DIR . '/languages' ) && @is_dir( WP_CONTENT_DIR . '/languages' ) || ! @is_dir( ABSPATH . WPINC . '/languages' ) ) { /** * Server path of the language directory. * * No leading slash, no trailing slash, full path, not relative to ABSPATH * * @since 2.1.0 */ define( 'WP_LANG_DIR', WP_CONTENT_DIR . '/languages' ); if ( ! defined( 'LANGDIR' ) ) { // Old static relative path maintained for limited backward compatibility - won't work in some cases. define( 'LANGDIR', 'wp-content/languages' ); } } else { /** * Server path of the language directory. * * No leading slash, no trailing slash, full path, not relative to `ABSPATH`. * * @since 2.1.0 */ define( 'WP_LANG_DIR', ABSPATH . WPINC . '/languages' ); if ( ! defined( 'LANGDIR' ) ) { // Old relative path maintained for backward compatibility. define( 'LANGDIR', WPINC . '/languages' ); } } } } /** * Loads the database class file and instantiates the `$wpdb` global. * * @since 2.5.0 * * @global wpdb $wpdb WordPress database abstraction object. */ function require_wp_db() { global $wpdb; require_once ABSPATH . WPINC . '/class-wpdb.php'; if ( file_exists( WP_CONTENT_DIR . '/db.php' ) ) { require_once WP_CONTENT_DIR . '/db.php'; } if ( isset( $wpdb ) ) { return; } $dbuser = defined( 'DB_USER' ) ? DB_USER : ''; $dbpassw