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run code in 150+ php & hhvm versions
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<?php $rArrayIterator = new RecursiveArrayIterator(array('test1', array('test3', 'test4', 'test5'))); $rRegexIterator = new RecursiveRegexIterator($rArrayIterator, '/^test/', RecursiveRegexIterator::ALL_MATCHES); foreach ($rRegexIterator as $key1 => $value1) { var_dump($key1); var_dump($value1); if ($rRegexIterator->hasChildren()) { // print all children echo "Children: "; foreach ($rRegexIterator->getChildren() as $key => $value) { var_dump($value); } echo "\n"; } else { echo "No children\n"; } } ?>
based on CMQ8G
Output for 5.5.24 - 7.1.0
int(0) array(1) { [0]=> array(1) { [0]=> string(4) "test" } } No children int(1) array(3) { [0]=> string(5) "test3" [1]=> string(5) "test4" [2]=> string(5) "test5" } Children: array(1) { [0]=> array(1) { [0]=> string(4) "test" } } array(1) { [0]=> array(1) { [0]=> string(4) "test" } } array(1) { [0]=> array(1) { [0]=> string(4) "test" } }
Output for 5.4.0 - 5.4.45
int(0) array(1) { [0]=> array(1) { [0]=> string(4) "test" } } No children Notice: Array to string conversion in /in/2voPp on line 6 int(1) array(1) { [0]=> array(0) { } } Children: string(5) "test3" string(5) "test4" string(5) "test5"
Output for 5.2.0 - 5.3.29
int(0) array(1) { [0]=> array(1) { [0]=> string(4) "test" } } No children int(1) array(1) { [0]=> array(0) { } } Children: string(5) "test3" string(5) "test4" string(5) "test5"
Output for 5.1.0 - 5.1.6
Fatal error: Class 'RecursiveRegexIterator' not found in /in/2voPp on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Class 'RecursiveArrayIterator' not found in /in/2voPp on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected ')', expecting '(' in /in/2voPp on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected ')', expecting '(' in /in/2voPp on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'('' in /in/2voPp on line 4
Process exited with code 255.