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run code in 200+ php & hhvm versions
Bugs & Features
<?php function datediffInWeeks($date1, $date2) { if($date1 > $date2) return datediffInWeeks($date2, $date1); $first = DateTime::createFromFormat('m/d/Y', $date1); $second = DateTime::createFromFormat('m/d/Y', $date2); return floor($first->diff($second)->days/7); } var_dump(datediffInWeeks('01/02/2018', '02/09/2018'));// 21 var_dump(datediffInWeeks('6/4/2020', '1/2/2021'));// 21
based on tSClX
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.0 - 7.3.0beta1
float(5) float(30)