3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Source: https://bugs.php.net/bug.php?id=61225 $wyraz1= "baba"; $wyraz2="abba"; function testAnagram($wyraz) { if (strlen($wyraz) == strlen(wyraz2)) { $isAnagram = array(); for ($i=0;$i<strlen($wyraz);$i++) { if (isset($isAnagram[$wyraz[$i]])) $isAnagram[$wyraz[$i]]++; else $isAnagram[$wyraz[$i]] = 1; } return $isAnagram; } } $wyn1 = testAnagram($wyraz1); ksort($wyn1); $wyn2 = testAnagram($wyraz2); ksort($wyn2); if ($wyn1 == $wyn2) { echo "identical"; } else {echo "not ident.";} print_r($wyn1);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Undefined constant "wyraz2" in /in/1hteK:8 Stack trace: #0 /in/1hteK(18): testAnagram('baba') #1 {main} thrown in /in/1hteK on line 8
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant wyraz2 - assumed 'wyraz2' (this will throw an Error in a future version of PHP) in /in/1hteK on line 8 Warning: ksort() expects parameter 1 to be array, null given in /in/1hteK on line 19 Warning: Use of undefined constant wyraz2 - assumed 'wyraz2' (this will throw an Error in a future version of PHP) in /in/1hteK on line 8 Warning: ksort() expects parameter 1 to be array, null given in /in/1hteK on line 21 identical
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, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Notice: Use of undefined constant wyraz2 - assumed 'wyraz2' in /in/1hteK on line 8 Warning: ksort() expects parameter 1 to be array, null given in /in/1hteK on line 19 Notice: Use of undefined constant wyraz2 - assumed 'wyraz2' in /in/1hteK on line 8 Warning: ksort() expects parameter 1 to be array, null given in /in/1hteK on line 21 identical

preferences:
315.5 ms | 405 KiB | 460 Q