3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $nu_array = null; $callback = function ( $item ) use(&$callback, &$nu_array) { if (!is_array($item)) { $nu_array[] = $item; } else if ( is_array( $item ) ) { foreach( array_values($item) as $v) { if ( !(is_array($v))) { $nu_array[] = $v; } else { $callback( $v ); continue; } } } }; $array = array('alpha',array(1,2,3),'beta',array(4,5,6),'gamma',array(7,8,array(9,10))); array_walk($array, $callback); var_dump($nu_array);
Output for 5.3.0 - 7.1.0
array(13) { [0]=> string(5) "alpha" [1]=> int(1) [2]=> int(2) [3]=> int(3) [4]=> string(4) "beta" [5]=> int(4) [6]=> int(5) [7]=> int(6) [8]=> string(5) "gamma" [9]=> int(7) [10]=> int(8) [11]=> int(9) [12]=> int(10) }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/DhZZl on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/DhZZl on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/DhZZl on line 3
Process exited with code 255.