MYSQL TWO DATES DIFFRENCE EXCEPT FRIDAY code example

Example: saturday and sunday will not count as number of days php mysql

$workdays = array();
$type = CAL_GREGORIAN;
$month = date('n'); // Month ID, 1 through to 12.
$year = date('Y'); // Year in 4 digit 2009 format.
$day_count = cal_days_in_month($type, $month, $year); // Get the amount of days

//loop through all days
for ($i = 1; $i <= $day_count; $i++) {

        $date = $year.'/'.$month.'/'.$i; //format date
        $get_name = date('l', strtotime($date)); //get week day
        $day_name = substr($get_name, 0, 3); // Trim day name to 3 chars

        //if not a weekend add day to array
        if($day_name != 'Sun' && $day_name != 'Sat'){
            $workdays[] = $i;
        }

}

// look at items in the array uncomment the next line
   //print_r($workdays);