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<?php class Counter implements Countable { public function count() { var_dump(func_get_arg(0)); return count($this->data); } } $counter = new Counter; $counter->count(COUNT_RECURSIVE);
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of Counter::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/Pg3G7 on line 4 int(1) Warning: Undefined property: Counter::$data in /in/Pg3G7 on line 7 Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /in/Pg3G7:7 Stack trace: #0 /in/Pg3G7(12): Counter->count(1) #1 {main} thrown in /in/Pg3G7 on line 7
Process exited with code 255.

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