php weeks between 2 dates

Question

hi how to find no of weeks and each mondays date between 2 dates. for ex 10-07-2009 to today .

Note :consider leap year and other date related constrains also.

Answer 1

echo datediff('ww', '9 July 2003', '4 March 2004', false);

Find the function on the site below: http://www.addedbytes.com/code/php-datediff-function/

Answer 2

$diff = strtotime($datefrom, 0) - strtotime($dateto, 0);
echo floor($diff / 604800);

Answer 3

The following function computes the "spoken weeks" between two timestamps (i.e. monday is next week if you are on saturday).

function days_between($datefrom,$dateto){
    $fromday_start = mktime(0,0,0,date("m",$datefrom),date("d",$datefrom),date("Y",$datefrom));
    $diff = $dateto - $datefrom;
    $days = intval( $diff / 86400 ); // 86400  / day

    if( ($datefrom - $fromday_start) + ($diff % 86400) > 86400 )
        $days++;

    return  $days;
}

function weeks_between($datefrom, $dateto)
{
    $day_of_week = date("w", $datefrom);
    $fromweek_start = $datefrom - ($day_of_week * 86400) - ($datefrom % 86400);
    $diff_days = days_between($datefrom, $dateto);
    $diff_weeks = intval($diff_days / 7);
    $seconds_left = ($diff_days % 7) * 86400;

    if( ($datefrom - $fromweek_start) + $seconds_left > 604800 )
        $diff_weeks ++;

    return $diff_weeks;
}