calendar function

[antonyjohn]

Is there any function to count the no.of saturadays and sundays in a given month of an year?

[Wuhtzu]

I don't think there is a function which does what you want but it can "easily" be created. All  you basically need to do is loop over all the days in a given month and check if they are a saturday or a sunday.

 

This is how I would do it:

 

<?php
function count_sat_sun($timestamp,$count_to_return) {
    
    //Seperate day, month and year
    $day = date('d', $timestamp);
    $month = date('m', $timestamp);
    $year = date('Y', $timestamp);

    
    //Calculate the number of days in month
    $days_in_month = cal_days_in_month(CAL_GREGORIAN, $month, $year);
    
    //Set some counters
    $day_num = 1;
    $num_of_sat = 0;
    $num_of_sun = 0;
    
    //Loop over the days
    while($day_num <= $days_in_month) {
        
        $day_timestamp = mktime(0, 0, 0, $month, $day_num, $year); 
        $day_of_week = date('w', $day_timestamp);
        
        //Add to the saturday count if the day is a saturday
        if($day_of_week == 6) {
            $num_of_sat++;
        }
        
        //Add to the sunday count if the day is a sunday    
        if($day_of_week == 0) {
            $num_of_sun++;
        }
        
        $day_num++;
    }
    
    //Determine the return value based on function argument
    
    if($count_to_return == 'sat') {
        return $num_of_sat;
    }
    elseif($count_to_return == 'sun') {
        return $num_of_sun;
    }
   
}

?>

 

 

<?php
//How to use the function:

//Return the num of saturdays in todays month
count_sat_sun(time(),'sat')


//Return the num of sundays in todays month
count_sat_sun(time(),'sun')
?>

 

 

Redefine the function with whatever arguments you think are more logic than mine. You could make separate functions for each day or change the $timestamp argument to be a $month and $year argument. It's up to you. This is what I found somewhat logic

 

 

Btw. can anyone see a smarter way to do this? If you know the number of days in the month, the starting day (mon-sat) and the ending day (mon-sat) you should be able to do some basic "calendar math" or "calendar logic" but I couldn't comprehend it and didn't know if it would be faster and simpler.