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<?php $myArray = array( 0, array( 0, 1, array( 0, 1, 2, array( 0, 1, 2, 3, array("the end") ) ) ) ); $recursive_array_iterator = new RecursiveArrayIterator($myArray); iterator_apply($recursive_array_iterator, 'traverseRecursiveArray', array($myArray)); function traverseRecursiveArray($iterator) { while ($iterator->valid()) { if ($iterator->hasChildren()) { traverseRecursiveArray($iterator->getChildren()); } else { echo $iterator->key() . ' : ' . $iterator->current() . PHP_EOL; } $iterator->next(); } }
Output for 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught Error: Call to a member function valid() on array in /in/LVIeR:28 Stack trace: #0 [internal function]: traverseRecursiveArray(Array) #1 /in/LVIeR(24): iterator_apply(Object(RecursiveArrayIterator), 'traverseRecursi...', Array) #2 {main} thrown in /in/LVIeR on line 28
Process exited with code 255.
Output for 5.6.0 - 5.6.40
Fatal error: Call to a member function valid() on array in /in/LVIeR on line 28
Process exited with code 255.
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
Fatal error: Call to a member function valid() on a non-object in /in/LVIeR on line 28
Process exited with code 255.
Output for 5.1.0 - 5.1.6
Fatal error: Call to undefined function iterator_apply() in /in/LVIeR on line 24
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Class 'RecursiveArrayIterator' not found in /in/LVIeR on line 23
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/LVIeR on line 23
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: recursivearrayiterator in /in/LVIeR on line 23

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