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<?php class MyCountable implements Countable { public function count($mySpecialFilterArgument = null) { if($mySpecialFilterArgument === null) { // expect that we were called from count($myCountable) var_dump(0); } else { // expect that we manually called $myCountable->count($mySpecialFilterArgument) var_dump(1); } } } $myCountable = new MyCountable; $myCountable->count(1); count($myCountable); count($myCountable, COUNT_NORMAL); count($myCountable, COUNT_RECURSIVE);
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of MyCountable::count($mySpecialFilterArgument = null) should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/4O9nA on line 4 int(1) int(0) int(0) int(0)

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