Online PHP editor | output for 6LLY0

@ 2013-01-11T13:54:41Z

<?php

$givenday = mktime(0,0,0,01,01,2013);
$Monday = strtotime("Monday this week",$givenday);
echo date("j M Y H:i:s", $Monday);


function StartOfWeek($year, $week) 
{ 
    $Jan1 = mktime(1,1,1,1,1,$year); 
    $MondayOffset = (11-date('w',$Jan1))%7-3; 
    $desiredMonday = strtotime(($week-1) . ' weeks '.$MondayOffset.' days', $Jan1); 
    return $desiredMonday; 
}  
echo StartOfWeek(2013, 1);

Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: 31 Dec 2012 00:00:001356912061
Output for 7.3.32 - 7.3.33, 8.0.13: 31 Dec 2012 00:00:001356915661
Output for 4.3.5 - 4.3.11, 4.4.0 - 4.4.9, 5.0.3 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: 7 Jan 2013 00:00:001356912061
Output for 5.0.0 - 5.0.2: 7 Jan 2013 00:00:001356908400
Output for 4.3.0 - 4.3.4: 14 Jan 2013 00:00:001356912061

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