Calculate the number of business days between two dates - PHP

Is there a simple function in PHP to calculate the number of business days between two dates ? I would like to calculate business days excluding weekends, national days and public holidays.

Hi,

You can use the solution below to calculate the number of business days between two dates. The function works with date format YYYY-MM-DD. Holidays and national days have to be added to $holidays array. When starting date is the same as end date, the function will return zero business days.



function calculateBusinessDays($startDate,$endDate) {

if ( strtotime($endDate) >= strtotime($startDate) ) {

$holidays = array("2020-12-24","2020-12-25","2020-12-26");
$date = $startDate;
$days = 0;

while ($date != $endDate) {
$date = date("Y-m-d", strtotime("+1 day", strtotime($date)));
$weekday = date("w", strtotime($date));
if ( $weekday != 6 AND $weekday != 0 AND !in_array($date, $holidays) ) $days++;
}

return $days;
}
else {
return "Please check the dates.";
}

}

echo calculateBusinessDays("2020-07-14","2020-07-17");



The function will calculate, that difference between 2020-07-14 and 2020-07-17 is 3 business days.