3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function merge(array $a, array $b, $preserveNumericKeys = false) { foreach ($b as $key => $value) { if (array_key_exists($key, $a)) { if (is_int($key) && !$preserveNumericKeys) { $a[] = $value; } elseif (is_array($value) && is_array($a[$key])) { $a[$key] = static::merge($a[$key], $value, $preserveNumericKeys); } else { $a[$key] = $value; } } else { $a[$key] = $value; } } return $a; } $r = merge(array('franz', 'de leon'), array('franz', 'kafka')); var_dump($r);
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
array(4) { [0]=> string(5) "franz" [1]=> string(7) "de leon" [2]=> string(5) "franz" [3]=> string(5) "kafka" }
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_STATIC in /in/YNuQc on line 9
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/YNuQc on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_ARRAY, expecting ')' in /in/YNuQc on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_ARRAY, expecting ')' in /in/YNuQc on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/YNuQc on line 2
Process exited with code 255.