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run code in 300+ PHP versions simultaneously
<?php /** * For this test someone has written a lot of crap PHP code! * List all the problems you can find with this code and why it is a problem * */ function countVowelsInFile($f) { $content = file_get_contents($f); return preg_match_all('/[aeiou]/', $content); } countVowelsInFile(__FILE__);
Output for 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, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Output for 4.3.4 - 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
Warning: preg_match_all() expects at least 3 parameters, 2 given in /in/QIha5 on line 12
Output for 4.3.3

Process exited with code 139.
Output for 4.3.0 - 4.3.2
Warning: Wrong parameter count for preg_match_all() in /in/QIha5 on line 12

preferences:
347.01 ms | 401 KiB | 455 Q