hutnikau/job-scheduler – планировщик задач на пхп

$executionTime = new \\DateTime('2017-12-12 20:00:00');
//run monthly, at 20:00:00, 5 times
$rule          = new \\Scheduler\\Job\\RRule('FREQ=MONTHLY;COUNT=5', $executionTime);
$job           = new \\Scheduler\\Job\\Job($rule, function () {
    //do something
});

https://github.com/hutnikau/job-scheduler