3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (!function_exists('array_all')) { // polyfill for PHP versions below 8.4 function array_all(array $array, callable $callback): bool { foreach ($array as $key => $value) { if (!$callback($value, $key)) { return false; } } return true; } } $array = [1, '2', -644, '45.55', 3.14, 1e4]; var_export( array_all($array, fn($v) => is_numeric($v)) );
Output for 7.4.0, 8.1.32, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
true
Output for 7.3.7
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW), expecting ')' in /in/PHfLi on line 18
Process exited with code 255.
Output for 7.2.34
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW), expecting ',' or ')' in /in/PHfLi on line 18
Process exited with code 255.
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