Alert: This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness.
wp_maintenance()
Die with a maintenance message when conditions are met.
Description Description
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).
Source Source
File: wp-includes/load.php
182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 | function wp_maintenance() { if ( ! file_exists( ABSPATH . '.maintenance' ) || wp_installing() ) { return; } global $upgrading; include( ABSPATH . '.maintenance' ); // If the $upgrading timestamp is older than 10 minutes, don't die. if ( ( time() - $upgrading ) >= 600 ) { 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(); $protocol = wp_get_server_protocol(); header( "$protocol 503 Service Unavailable", true, 503 ); header( 'Content-Type: text/html; charset=utf-8' ); header( 'Retry-After: 600' ); $dir_attr = ''; if ( is_rtl() ) { $dir_attr = ' dir="rtl"'; } ?> <!DOCTYPE html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title><?php _e( 'Maintenance' ); ?></title> </head> <body> <h1><?php _e( 'Briefly unavailable for scheduled maintenance. Check back in a minute.' ); ?></h1> </body> </html> <?php die();} |
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Changelog Changelog
| Version | Description |
|---|---|
| 3.0.0 | Introduced. |