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run code in 300+ PHP versions simultaneously
<?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($recursive_array_iterator, 'traverseRecursiveArray', new \ArrayObject($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 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: iterator_apply(): Argument #3 ($args) must be of type ?array, ArrayObject given in /in/656RE:24 Stack trace: #0 /in/656RE(24): iterator_apply(Object(RecursiveArrayIterator), 'traverseRecursi...', Object(ArrayObject)) #1 {main} thrown in /in/656RE on line 24
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Argument 3 passed to iterator_apply() must be of the type array or null, object given in /in/656RE:24 Stack trace: #0 /in/656RE(24): iterator_apply(Object(RecursiveArrayIterator), 'traverseRecursi...', Object(ArrayObject)) #1 {main} thrown in /in/656RE on line 24
Process exited with code 255.
Output for 7.0.0 - 7.0.33
Fatal error: Uncaught TypeError: Argument 3 passed to iterator_apply() must be of the type array, object given in /in/656RE:24 Stack trace: #0 /in/656RE(24): iterator_apply(Object(RecursiveArrayIterator), 'traverseRecursi...', Object(ArrayObject)) #1 {main} thrown in /in/656RE on line 24
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Catchable fatal error: Argument 3 passed to iterator_apply() must be of the type array, object given in /in/656RE on line 24
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Catchable fatal error: Argument 3 passed to iterator_apply() must be an array, object given in /in/656RE on line 24
Process exited with code 255.
Output for 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/656RE on line 24 Catchable fatal error: Argument 3 passed to iterator_apply() must be an array, object given in /in/656RE on line 24
Process exited with code 255.
Output for 5.1.0 - 5.1.6
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/656RE on line 24 Fatal error: Call to undefined function iterator_apply() in /in/656RE on line 24
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/656RE on line 24 Fatal error: Class 'RecursiveArrayIterator' not found in /in/656RE on line 23
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/656RE on line 24 Fatal error: Cannot instantiate non-existent class: recursivearrayiterator in /in/656RE on line 23
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/656RE on line 24 Fatal error: Cannot instantiate non-existent class: recursivearrayiterator in /in/656RE on line 23
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