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@ 2014-10-08T12:46:12Z

<?php

$dt = new DateTime('first Monday of this month');
echo $dt->format('W');
$month = "3";
$year = "2014";

$beg = (int) date('W', strtotime("first monday of $year-$month"));
$end = (int) date('W', strtotime("last  monday of $year-$month"));

print(join(', ', range($beg, $end)));

Output
Performance
VLD
References
Branches

date: documentation ( source)
strtotime: documentation ( source)
range: documentation ( source)
join: documentation ( source)

preferences:dark modelive preview

40.42 ms | 402 KiB | 5 Q