3v4l.org

run code in 300+ PHP versions simultaneously
<?php function isStringOrNumeric($in) { return basename($in); } function test($carry, $value) { $carry[] = basename($value); return $carry; } $a = array( 'index.php', '../../../index.php', 'valami.txt'); $b = array_reduce($a, 'test'); if($b === $a) echo('Success!'); else echo('Fail!');
Output for 4.3.3 - 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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.17 - 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 - 8.3.6
Fail!
Output for 4.3.2
Fatal error: [] operator not supported for strings in /in/gZbIX on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: [] operator not supported for strings in /in/gZbIX on line 7
preferences:
214.02 ms | 401 KiB | 338 Q