In case you cannot use WPCron, but you can edit the Unix crontab:<br /><br /> Create a .php file, in the root directory of your site, with:<br /> &lt;?php<br /> define('RUN_OPTIMIZE_DATABASE', true);<br /> require_once('wp-load.php');<br /> ?&gt;<br /><br /> Then, start the .php file from your crontab!<br />

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