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<?php class myData implements IteratorAggregate { public $property1 = "Public property one"; public $property2 = "Public property two"; public $property3 = "Public property three"; public function __construct() { $this->property4 = "last property"; } public function getIterator() { return new ArrayIterator($this); } } $obj = new myData; echo "foreach (new \$obj)\n"; foreach($obj as $key => $value) { var_dump($key, $value); echo "\n"; } echo "\nforeach (new ArrayIterator(\$obj))\n"; foreach(new ArrayIterator($obj) as $key => $value) { var_dump($key, $value); echo "\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of myData::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/i7QdK on line 11 Deprecated: Creation of dynamic property myData::$property4 is deprecated in /in/i7QdK on line 8 foreach (new $obj) string(9) "property1" string(19) "Public property one" string(9) "property2" string(19) "Public property two" string(9) "property3" string(21) "Public property three" string(9) "property4" string(13) "last property" foreach (new ArrayIterator($obj)) string(9) "property1" string(19) "Public property one" string(9) "property2" string(19) "Public property two" string(9) "property3" string(21) "Public property three" string(9) "property4" string(13) "last property"

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