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<?php class A { public function test(&$arr) { static $i; var_dump(self::$i); if (!isset(self::$i)) { self::$i = &$arr[0]; } } } $arr = [1, 2, 3]; $a = new A(); $a->test($arr); $a->test($arr);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Access to undeclared static property A::$i in /in/q1c35:7 Stack trace: #0 /in/q1c35(17): A->test(Array) #1 {main} thrown in /in/q1c35 on line 7
Process exited with code 255.

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