Answers for "php datetime get number day of week"

php check weekday of date

$dayofweek = date('w', strtotime($date));
$result    = date('Y-m-d', strtotime(($day - $dayofweek).' day', strtotime($date)));

week day php

date('l'); //Returns full day name of the week: Thursday
date('D'); //Returns abbreviated day name of the week: Thu