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function GetWeekDate($week,$year)
{
$timestamp = mktime(0,0,0,1,1,$year);
$dayofweek = date("w",$timestamp);
if( $week != 1)
$distance = ($week-1)*7-$dayofweek+1;
$passed_seconds = $distance * 86400;
$timestamp += $passed_seconds;
$firt_date_of_week = date("Ymd",$timestamp);
if($week == 1)
$distance = 7-$dayofweek;
else
$distance = 6;
$timestamp += $distance * 86400;
$last_date_of_week = date("Ymd",$timestamp);
return array($firt_date_of_week,$last_date_of_week);
}
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