Online PHP editor | output for E4irL

@ 2014-07-28T21:46:21Z

<?php 

$myArray = array(
    "a", 
    array(
        "a",
        "b",
        array(
            "a",
            "b",
            "c",
            array(
                "a",
                "b",
                "c",
                "d",
                array("the end")
                )
            )
        )
    );

$recursive_array_iterator = new RecursiveArrayIterator(&$myArray);
iterator_apply(&$recursive_array_iterator, 'traverseRecursiveArray', array(&$recursive_array_iterator)); 


function traverseRecursiveArray($iterator) 
{   
    while ($iterator->valid()) { 
        if ($iterator->hasChildren()) { 
            traverseRecursiveArray($iterator->getChildren()); 
        } else { 
            $iterator->offsetSet($iterator->key(), manipulate($iterator->current()));
            echo $iterator->key() . ' => ' . $iterator->current() . PHP_EOL;    
        } 


        $iterator->next(); 
    } 
}

function manipulate($string)
{
	$string .= " appended";

    return $string;
}

var_dump($myArray);

Output for 5.4.0 - 5.4.31: Fatal error: Call-time pass-by-reference has been removed in /in/E4irL on line 23
Process exited with code 255.
Output for 5.3.0 - 5.3.29: Deprecated: Call-time pass-by-reference has been deprecated in /in/E4irL on line 23 Deprecated: Call-time pass-by-reference has been deprecated in /in/E4irL on line 24 0 => a appended 0 => a appended 1 => b appended 0 => a appended 1 => b appended 2 => c appended 0 => a appended 1 => b appended 2 => c appended 3 => d appended 0 => the end appended array(2) { [0]=> string(10) "a appended" [1]=> array(3) { [0]=> string(1) "a" [1]=> string(1) "b" [2]=> array(4) { [0]=> string(1) "a" [1]=> string(1) "b" [2]=> string(1) "c" [3]=> array(5) { [0]=> string(1) "a" [1]=> string(1) "b" [2]=> string(1) "c" [3]=> string(1) "d" [4]=> array(1) { [0]=> string(7) "the end" } } } } }

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