Hello Reader's if you are looking for making the function which detect if a given date is weekend or not then this code will help you. This is a PHP function which will use the date as a input param and will print if its weekend or not. So the code for the function will go like this:-

<?php
$givendate='2011-01-01';
        $MyGivenDateIn = strtotime($date);
        $ConverDate = date("l", $MyGivenDateIn);
        $ConverDateTomatch = strtolower($ConverDate);
        echo $ConverDateTomatch;
        if(($ConverDateTomatch == "saturday" )|| ($ConverDateTomatch == "sunday")){
            echo "This is a weekend date";
        } else {
            echo "This is no weekend date";
        }
?>

Output:

This is a weekend date