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<?php class Test {} function addToStorage(\SplObjectStorage $storage, Test $test) { if (!$storage->contains($test)) { $storage->attach($test); } } class OneSpecimenPerClassStorage extends \SplObjectStorage { public function getHash($o) { return get_class($o); } } $storage = new \OneSpecimenPerClassStorage(); $test1 = new Test(); $test2 = new Test(); addToStorage($storage, $test1); addToStorage($storage, $test2); echo $storage->count();
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of OneSpecimenPerClassStorage::getHash($o) should either be compatible with SplObjectStorage::getHash(object $object): string, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/JM0WL on line 12 1

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