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<?php class A implements IteratorAggregate{ public function getIterator(){ return new B(); } } class B implements IteratorAggregate{ public function getIterator(){ return new ArrayIterator(array(1, 2, 3, 4, 5)); } } $a = new A(); foreach ($a as $aa){ echo $aa; }
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of A::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/mMJT2 on line 4 Deprecated: Return type of B::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/mMJT2 on line 9 12345

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