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<?php class Foo implements IteratorAggregate { public function getIterator() { return 0; } } $foo = new Foo(); $i = new RecursiveTreeIterator($foo); foreach ($i as $val) { echo $val; }
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/V6pgB on line 5 Fatal error: Uncaught LogicException: Foo::getIterator() must return an object that implements Traversable in /in/V6pgB:12 Stack trace: #0 /in/V6pgB(12): RecursiveTreeIterator->__construct(Object(Foo)) #1 {main} thrown in /in/V6pgB on line 12
Process exited with code 255.

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