Get Start and End Days for a Given Week in PHP

Question

I\'m trying to get the week range using Sunday as the start date, and a reference date, say $date, but I just can\'t seem to figure it out.

For example,

Answer 1

Based on David Bélanger's version (unfortunatelly, my rep. won't allow me to post comment as reaction to his post..).

When input date is monday and first day of week is set as monday, original version returns previous week, not current. Here's the little fix (with the rest of orig. function):

if(function_exists('grk_Week_Range') === FALSE){
function grk_Week_Range($DateString, $FirstDay=6){

    if(empty($DateString) === TRUE){
        $DateString = date('Y-m-d');
    }

    # fix
    $dayOfWeek = date('N', strtotime($DateString));
    if ($dayOfWeek == ($FirstDay +1)) { $whichWeek = 'this '; }
    else { $whichWeek = 'last '; }

    $Days = array(
        0 => 'monday',
        1 => 'tuesday',
        2 => 'wednesday',
        3 => 'thursday',
        4 => 'friday',
        5 => 'saturday',
        6 => 'sunday'
    );

    # fix   
    $DT_Min = new DateTime( $whichWeek.(isset($Days[$FirstDay]) === TRUE ? $Days[$FirstDay] : $Days[6]).' '.$DateString);
    $DT_Max = clone($DT_Min);

    return array(
        $DT_Min->format('Y-m-d'),
        $DT_Max->modify('+6 days')->format('Y-m-d')
    );
}
}