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run code in 300+ PHP versions simultaneously

@ 2013-05-15T13:06:05Z

<?php
// palindrom
function anagram($s1, $s2) {
	$l1 = strlen($s1);
	$l2 = strlen($s2);

    if($l1 != $l2)
      return false;
    //
	$w1 = array();
    $w2 = array();
    //
    for($a=0; $a<$l1; $a++) {
        if(array_key_exists($s1[$a], $w1)) {
         $w1[$s1[$a]] = $w1[$s1[$a]] + 1;
            //       print_r($s1[$a]);
        }
        else {
         $w1[$s1[$a]] = 1;
        }
    }

    // print_r($w1);
    for($a=0; $a<$l2; $a++) {
        if(array_key_exists($s2[$a], $w2)) {
         $w2[$s2[$a]] = $w2[$s2[$a]] + 1;
            print_r($s2[$a]);
        }
        else {
         $w2[$s2[$a]] = 1;
        }
    }


    ksort($w1);
    ksort($w2);

    print_r($w1);
    print_r($w2);

    print_r(array_diff(array_keys($w1, $w2)));
}

echo anagram('test', 'test');
//print_r(array('tesfsdf' => 'dasdsad'));
?>

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7: tArray ( [e] => 1 [s] => 1 [t] => 2 ) Array ( [e] => 1 [s] => 1 [t] => 2 ) Array ( )
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: tArray ( [e] => 1 [s] => 1 [t] => 2 ) Array ( [e] => 1 [s] => 1 [t] => 2 ) Warning: array_diff(): at least 2 parameters are required, 1 given in /in/Sas3R on line 41
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: tArray ( [e] => 1 [s] => 1 [t] => 2 ) Array ( [e] => 1 [s] => 1 [t] => 2 ) Warning: Wrong parameter count for array_diff() in /in/Sas3R on line 41

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