3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types = 1); $contributors = ['Me', 'To']; array_walk($contributors, function(string $contributor) : string { return sprintf("%s, thank you very much for PHP7!", $contributor); }); var_dump($contributors); //echo implode("\n", $results);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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
array(2) { [0]=> string(2) "Me" [1]=> string(2) "To" }
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/SInau on line 2 Parse error: syntax error, unexpected ':', expecting '{' in /in/SInau on line 4
Process exited with code 255.
preferences:
156.14 ms | 402 KiB | 183 Q