您可以使用WordPress的伪cron和wp_schedule_single_event.

<?php
// add the action.
add_action(\'wpse71941_cron\', \'wpse71941_long_running\');
function wpse71941_long_running($args)
{
    // might need to call `set_time_limit` here
    set_time_limit(0);

    // do long running stuff here

    // return normal time limit
    if($l = ini_get(\'max_execution_time\'))
        set_time_limit($l);
}

// schedule the event for right now
wp_schedule_single_event(
    time(), 
    \'wpse71941_cron\', 
    array(\'args\' => \'for\', \'callback\' => \'function\')
);