Online PHP editor | output for TPg3A

@ 2014-10-16T03:59:44Z

<?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;
         }    
     }
    }
};
$array = array( 'a',array(1,2),
                'b',array(3,4,
                    array(5,6, 
                    array('c','d',
                   array(7,8))) );
array_walk($array, $callback);
print_r($nu_array);
/**
Array
(
    
)
**/

Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.34: Parse error: syntax error, unexpected ';', expecting ')' in /in/TPg3A on line 25
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Parse error: syntax error, unexpected T_FUNCTION in /in/TPg3A on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected T_FUNCTION in /in/TPg3A on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/TPg3A on line 3
Process exited with code 255.

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