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<?php class Foo implements IteratorAggregate { private $data = [ 'foo' => 'bar', 'bar' => 'baz' ]; public function getIterator() { return new ArrayIterator($this->data); } } $Foo = new Foo(); foreach($Foo as $key => $value) { echo $key, $value, PHP_EOL; }
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of Foo::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/R6atE on line 12 foobar barbaz

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