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<?php $array = array( array( array( 'leaf-0-0-0', array( 'leaf-0-0-0-0', 'leaf-0-0-0-1' ), ), array( array( 'leaf-0-1-0-0', 'leaf-0-1-0-1' ), 'leaf-0-1-0' ), 'leaf-0-0' ) ); $iterator = new RecursiveIteratorIterator( new RecursiveArrayIterator($array), $mode ); foreach ($iterator as $key => $leaf) { echo "$key => $leaf", PHP_EOL; } ?>
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $mode in /in/XNtUG on line 23 Deprecated: RecursiveIteratorIterator::__construct(): Passing null to parameter #2 ($mode) of type int is deprecated in /in/XNtUG on line 22 0 => leaf-0-0-0 0 => leaf-0-0-0-0 1 => leaf-0-0-0-1 0 => leaf-0-1-0-0 1 => leaf-0-1-0-1 1 => leaf-0-1-0 2 => leaf-0-0
Output for 8.1.0 - 8.1.28
Warning: Undefined variable $mode in /in/XNtUG on line 23 Deprecated: RecursiveIteratorIterator::__construct(): Passing null to parameter #2 ($mode) of type int is deprecated in /in/XNtUG on line 23 0 => leaf-0-0-0 0 => leaf-0-0-0-0 1 => leaf-0-0-0-1 0 => leaf-0-1-0-0 1 => leaf-0-1-0-1 1 => leaf-0-1-0 2 => leaf-0-0
Output for 8.0.0 - 8.0.30
Warning: Undefined variable $mode in /in/XNtUG on line 23 0 => leaf-0-0-0 0 => leaf-0-0-0-0 1 => leaf-0-0-0-1 0 => leaf-0-1-0-0 1 => leaf-0-1-0-1 1 => leaf-0-1-0 2 => leaf-0-0
Output for 7.0.0 - 7.0.14, 7.1.0, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: mode in /in/XNtUG on line 23 0 => leaf-0-0-0 0 => leaf-0-0-0-0 1 => leaf-0-0-0-1 0 => leaf-0-1-0-0 1 => leaf-0-1-0-1 1 => leaf-0-1-0 2 => leaf-0-0
Output for 7.3.32 - 7.3.33
0 => leaf-0-0-0 0 => leaf-0-0-0-0 1 => leaf-0-0-0-1 0 => leaf-0-1-0-0 1 => leaf-0-1-0-1 1 => leaf-0-1-0 2 => leaf-0-0
Output for 7.0.20, 7.1.5 - 7.1.33, 7.2.0 - 7.2.33
Notice: Undefined variable: mode in /in/XNtUG on line 24 0 => leaf-0-0-0 0 => leaf-0-0-0-0 1 => leaf-0-0-0-1 0 => leaf-0-1-0-0 1 => leaf-0-1-0-1 1 => leaf-0-1-0 2 => leaf-0-0
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Notice: Undefined variable: mode in /in/XNtUG on line 25 0 => leaf-0-0-0 0 => leaf-0-0-0-0 1 => leaf-0-0-0-1 0 => leaf-0-1-0-0 1 => leaf-0-1-0-1 1 => leaf-0-1-0 2 => leaf-0-0
Output for 5.0.0 - 5.0.5
Fatal error: Class 'RecursiveArrayIterator' not found in /in/XNtUG 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: recursiveiteratoriterator in /in/XNtUG on line 22
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: recursiveiteratoriterator in /in/XNtUG on line 22

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