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<?php class ArrayAsKeyIterator extends IteratorIterator { public function key() { return array('1', parent::key()); } } $it = new ArrayAsKeyIterator(new ArrayIterator(range(0, 1))); iterator_count($it); $it->rewind(); $it->key(); var_dump($it->current(), $it->key()); $array = iterator_to_array($it, FALSE); // because it is wrapped into an iterator iterator, see: $itit = new IteratorIterator($it); $array = iterator_to_array($itit, FALSE);
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Return type of ArrayAsKeyIterator::key() should either be compatible with IteratorIterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/7mIvr on line 4 int(0) array(2) { [0]=> string(1) "1" [1]=> int(0) }
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
int(0) array(2) { [0]=> string(1) "1" [1]=> int(0) }
Output for 5.2.1 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
int(0) array(2) { [0]=> string(1) "1" [1]=> int(0) } Warning: Illegal type returned from ArrayAsKeyIterator::key() in /in/7mIvr on line 20 Warning: Illegal type returned from ArrayAsKeyIterator::key() in /in/7mIvr on line 20
Output for 5.1.0 - 5.1.6, 5.2.0
int(0) array(2) { [0]=> string(1) "1" [1]=> int(0) } Warning: iterator_to_array() expects exactly 1 parameter, 2 given in /in/7mIvr on line 16 Warning: iterator_to_array() expects exactly 1 parameter, 2 given in /in/7mIvr on line 20
Output for 5.0.0 - 5.0.5
Fatal error: Class 'IteratorIterator' not found in /in/7mIvr on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/7mIvr on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/7mIvr on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/7mIvr on line 4
Process exited with code 255.
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