count total monthly hours

total_hours.php

<?php
date_default_timezone_set('Asia/Karachi');

#################################################################
$leaves = 0; // edit this if needed
#################################################################

$hours = 8;
$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;
    }
}

$total_work_days = count($workdays) - $leaves;
$total_hours = (count($workdays) - $leaves) * $hours;

echo "<strong>" . date('F') . ' - ' . $year . "</strong><hr>"
. "Total Working Hours = <strong>$total_hours</strong><br>"
. "Total Working Days = <strong>$total_work_days</strong><br>"
. "Total Days = <strong>$day_count</strong><br>";