Online PHP editor | output for dB8AP

@ 2014-07-28T20:50:54Z

<?php 
$myArray = array( 
    0 => 'a', 
    1 => array('subA','subB',array(0 => 'subsubA', 1 => 'subsubB', 2 => array(0 => 'deepA', 1 => 'deepB'))), 
    2 => 'b', 
    3 => array('subA','subB','subC'), 
    4 => 'c' 
); 

$iterator = new RecursiveArrayIterator($myArray); 
iterator_apply($iterator, 'traverseStructure', array($iterator)); 

function traverseStructure($iterator) { 
    
    while ( $iterator -> valid() ) { 

        if ( $iterator -> hasChildren() ) { 
        
            traverseStructure($iterator -> getChildren()); 
            
        } 
        else { 
            echo $iterator -> key() . ' : ' . $iterator -> current() .PHP_EOL;    
        } 

        $iterator -> next(); 
    } 
}

Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: 0 : a 0 : subA 1 : subB 0 : subsubA 1 : subsubB 0 : deepA 1 : deepB 2 : b 0 : subA 1 : subB 2 : subC 4 : c
Output for 5.1.0 - 5.1.6: Fatal error: Call to undefined function iterator_apply() in /in/dB8AP on line 11
Process exited with code 255.
Output for 5.0.0 - 5.0.5: Fatal error: Class 'RecursiveArrayIterator' not found in /in/dB8AP on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9: Fatal error: Cannot instantiate non-existent class: recursivearrayiterator in /in/dB8AP on line 10
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Cannot instantiate non-existent class: recursivearrayiterator in /in/dB8AP on line 10

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