Online PHP editor | output for iWbLn

@ 2019-03-21T16:46:31Z

<?php
$dayOfWeek = 0;
$array = array( 2,3,4,5,0 );
$size = count($array);

for ($x = 0; $x < $size; $x ++) {
    if ($array[$x] == $dayOfWeek && $x + 1 == $size) {
         $nextDay = $array[0];
         $totalDays = $dayOfWeek + $nextDay;
         echo $totalDays % 7;
    } elseif ($array[$x] == $dayOfWeek) {
        echo $array[$x +1] - $dayOfWeek;
    }
}

Output for 7.1.25 - 7.1.27, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: 2
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 2

preferences:dark modelive preview