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@ 2014-02-10T13:18:17Z

<?php
$yr="2011";
$week="01";
$day="02";
$day=date("D",strtotime($day));
$newdate= date("Y-m-d", strtotime($yr."W".$week));;
echo $newdate;

?>

Output
Performance
VLD
References
Branches

date: documentation ( source)
strtotime: documentation ( source)

preferences:dark modelive preview

35.85 ms | 402 KiB | 5 Q