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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($recursive_array_iterator, 'traverseRecursiveArray', array($recursive_array_iterator)); $i = 0; function traverseRecursiveArray($iterator) { global $i; while ($iterator->valid()) { if ($iterator->hasChildren()) { traverseRecursiveArray($iterator->getChildren()); } else { echo $iterator->key() . ' => ' . $iterator->current() . PHP_EOL; } $iterator->current .= $i++; $iterator->next(); } }
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
0 => 0 Deprecated: Creation of dynamic property RecursiveArrayIterator::$current is deprecated in /in/W8vpQ on line 39 Warning: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39 0 => 0 Deprecated: Creation of dynamic property RecursiveArrayIterator::$current is deprecated in /in/W8vpQ on line 39 Warning: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39 1 => 1 0 => 0 Deprecated: Creation of dynamic property RecursiveArrayIterator::$current is deprecated in /in/W8vpQ on line 39 Warning: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39 1 => 1 2 => 2 0 => 0 Deprecated: Creation of dynamic property RecursiveArrayIterator::$current is deprecated in /in/W8vpQ on line 39 Warning: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39 1 => 1 2 => 2 3 => 3 0 => the end Deprecated: Creation of dynamic property RecursiveArrayIterator::$current is deprecated in /in/W8vpQ on line 39 Warning: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27
0 => 0 Warning: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39 0 => 0 Warning: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39 1 => 1 0 => 0 Warning: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39 1 => 1 2 => 2 0 => 0 Warning: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39 1 => 1 2 => 2 3 => 3 0 => the end Warning: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39
Output for 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 - 7.3.31, 7.4.0 - 7.4.33
0 => 0 Notice: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39 0 => 0 Notice: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39 1 => 1 0 => 0 Notice: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39 1 => 1 2 => 2 0 => 0 Notice: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39 1 => 1 2 => 2 3 => 3 0 => the end Notice: Undefined property: RecursiveArrayIterator::$current in /in/W8vpQ on line 39
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 7.3.32 - 7.3.33
0 => 0 0 => 0 1 => 1 0 => 0 1 => 1 2 => 2 0 => 0 1 => 1 2 => 2 3 => 3 0 => the end
Output for 5.1.0 - 5.1.6
Fatal error: Call to undefined function iterator_apply() in /in/W8vpQ on line 24
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Class 'RecursiveArrayIterator' not found in /in/W8vpQ 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/W8vpQ 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/W8vpQ on line 23

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