- date: documentation ( source)
- strtotime: documentation ( source)
<?php
$now = strtotime('now');
$next_monday = strtotime('next Monday');
echo $now . "<br>";
echo $next_monday . "<br>";
echo date('Y-m-d', $now) . "T00:00:00<br>";
echo date('Y-m-d', $next_monday) . "T00:00:00";
?>