WordPress at a glance
function is not described

upgrade_252() WP 2.5.2

Execute changes made in WordPress 2.5.2.

  • Global. wpdb. $wpdb WordPress database abstraction object.

No Hooks.

Return

Nothing (null).

Usage

upgrade_252();

Code of upgrade 252: wp-admin/includes/upgrade.php VER 5.0.3

<?php
function upgrade_252() {
	global $wpdb;

	$wpdb->query("UPDATE $wpdb->users SET user_activation_key = ''");
}