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run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array( array( 'category_id' => 1, 'children' => array( 'category_id' => 2, 'children' => array( 'category_id' => 3, ) ) ), array( 'category_id' => 4, 'children' => array( 'category_id' => 5, 'children' => array( 'category_id' => 6, ) ) ) ); $iterator = new RecursiveIteratorIterator( new RecursiveArrayIterator($array) ); for($iterator; $iterator->valid(); $iterator->next()) { printf( "Key: %s Value: %s Depth: %s\n", $iterator->key(), $iterator->current(), $iterator->getDepth() ); }
Output for 7.0.0 - 7.1.0
Notice: Array to string conversion in /in/u5ZPM on line 33 Key: 0 Value: Array Depth: 0 Key: category_id Value: 1 Depth: 1 Key: category_id Value: 2 Depth: 2 Key: category_id Value: 3 Depth: 3 Key: category_id Value: 4 Depth: 1 Key: category_id Value: 5 Depth: 2 Key: category_id Value: 6 Depth: 3
Output for 5.4.0 - 5.6.28
Notice: Array to string conversion in /in/u5ZPM on line 34 Key: 0 Value: Array Depth: 0 Key: category_id Value: 1 Depth: 1 Key: category_id Value: 2 Depth: 2 Key: category_id Value: 3 Depth: 3 Key: category_id Value: 4 Depth: 1 Key: category_id Value: 5 Depth: 2 Key: category_id Value: 6 Depth: 3
Output for 5.1.0 - 5.3.29
Key: 0 Value: Array Depth: 0 Key: category_id Value: 1 Depth: 1 Key: category_id Value: 2 Depth: 2 Key: category_id Value: 3 Depth: 3 Key: category_id Value: 4 Depth: 1 Key: category_id Value: 5 Depth: 2 Key: category_id Value: 6 Depth: 3
Output for 5.0.0 - 5.0.5
Fatal error: Class 'RecursiveArrayIterator' not found in /in/u5ZPM on line 25
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: recursiveiteratoriterator in /in/u5ZPM on line 24
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: recursiveiteratoriterator in /in/u5ZPM on line 24