wp_upgrade()
Runs WordPress Upgrade functions.
Description
Upgrades the database if needed during a site update.
Source
File: wp-admin/includes/upgrade.php
.
View all references
function wp_upgrade() {
global $wp_current_db_version, $wp_db_version, $wpdb;
$wp_current_db_version = __get_option( 'db_version' );
// We are up to date. Nothing to do.
if ( $wp_db_version == $wp_current_db_version ) {
return;
}
if ( ! is_blog_installed() ) {
return;
}
wp_check_mysql_version();
wp_cache_flush();
pre_schema_upgrade();
make_db_current_silent();
upgrade_all();
if ( is_multisite() && is_main_site() ) {
upgrade_network();
}
wp_cache_flush();
if ( is_multisite() ) {
update_site_meta( get_current_blog_id(), 'db_version', $wp_db_version );
update_site_meta( get_current_blog_id(), 'db_last_updated', microtime() );
}
/**
* Fires after a site is fully upgraded.
*
* @since 3.9.0
*
* @param int $wp_db_version The new $wp_db_version.
* @param int $wp_current_db_version The old (current) $wp_db_version.
*/
do_action( 'wp_upgrade', $wp_db_version, $wp_current_db_version );
}
Hooks
-
do_action( 'wp_upgrade',
int $wp_db_version ,int $wp_current_db_version ) -
Fires after a site is fully upgraded.
Changelog
Version | Description |
---|---|
2.1.0 | Introduced. |