Finding First day of week via php [duplicate]

Answer 1

Here's a function for the first and last day of the week:

function week_start_date($wk_num, $yr, $first = 1, $format = 'F d, Y') 
{ 
    $wk_ts  = strtotime('+' . $wk_num . ' weeks', strtotime($yr . '0101')); 
    $mon_ts = strtotime('-' . date('w', $wk_ts) + $first . ' days', $wk_ts); 
    return date($format, $mon_ts); 
} 

$sStartDate = week_start_date($week_number, $year); 
$sEndDate   = date('F d, Y', strtotime('+6 days', strtotime($sStartDate))); 

It can probably be adapted to do month as well, but I wanted to get my answer in! :)