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<?php class ObjectKeyIterator extends IteratorIterator { public function __construct(\Traversable $iterator) { parent::__construct($iterator); } public function key() { $key = parent::key(); return (object)array('key' => $key); } } foreach(new ObjectKeyIterator(new ArrayObject(array('test' => 'foo', 2,4, 'bo' => 24,2))) as $key => $value) { var_dump($key, $value); }
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Return type of ObjectKeyIterator::key() should either be compatible with IteratorIterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/G0fZj on line 9 object(stdClass)#6 (1) { ["key"]=> string(4) "test" } string(3) "foo" object(stdClass)#7 (1) { ["key"]=> int(0) } int(2) object(stdClass)#6 (1) { ["key"]=> int(1) } int(4) object(stdClass)#7 (1) { ["key"]=> string(2) "bo" } int(24) object(stdClass)#6 (1) { ["key"]=> int(2) } int(2)
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
object(stdClass)#6 (1) { ["key"]=> string(4) "test" } string(3) "foo" object(stdClass)#7 (1) { ["key"]=> int(0) } int(2) object(stdClass)#6 (1) { ["key"]=> int(1) } int(4) object(stdClass)#7 (1) { ["key"]=> string(2) "bo" } int(24) object(stdClass)#6 (1) { ["key"]=> int(2) } int(2)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
object(stdClass)#5 (1) { ["key"]=> string(4) "test" } string(3) "foo" object(stdClass)#6 (1) { ["key"]=> int(0) } int(2) object(stdClass)#5 (1) { ["key"]=> int(1) } int(4) object(stdClass)#6 (1) { ["key"]=> string(2) "bo" } int(24) object(stdClass)#5 (1) { ["key"]=> int(2) } int(2)
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
Warning: Illegal type returned from ObjectKeyIterator::key() in /in/G0fZj on line 17 int(0) string(3) "foo" Warning: Illegal type returned from ObjectKeyIterator::key() in /in/G0fZj on line 17 int(0) int(2) Warning: Illegal type returned from ObjectKeyIterator::key() in /in/G0fZj on line 17 int(0) int(4) Warning: Illegal type returned from ObjectKeyIterator::key() in /in/G0fZj on line 17 int(0) int(24) Warning: Illegal type returned from ObjectKeyIterator::key() in /in/G0fZj on line 17 int(0) int(2)
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/G0fZj on line 4 Warning: Illegal type returned from ObjectKeyIterator::key() in /in/G0fZj on line 17 int(0) string(3) "foo" Warning: Illegal type returned from ObjectKeyIterator::key() in /in/G0fZj on line 17 int(0) int(2) Warning: Illegal type returned from ObjectKeyIterator::key() in /in/G0fZj on line 17 int(0) int(4) Warning: Illegal type returned from ObjectKeyIterator::key() in /in/G0fZj on line 17 int(0) int(24) Warning: Illegal type returned from ObjectKeyIterator::key() in /in/G0fZj on line 17 int(0) int(2)
Output for 5.0.0 - 5.0.5
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/G0fZj on line 4 Fatal error: Class 'IteratorIterator' not found in /in/G0fZj 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/G0fZj 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/G0fZj 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/G0fZj on line 4
Process exited with code 255.
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