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<?php class Foo { public $foo = 1; private $bar = 2; public function toArray() { $publics_only = function() use ($i) { return get_object_vars($i); }; return $publics_only(); } } $foo = new Foo(); var_dump($foo->toArray());
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $i in /in/HMlgT on line 8 Fatal error: Uncaught TypeError: get_object_vars(): Argument #1 ($object) must be of type object, null given in /in/HMlgT:9 Stack trace: #0 /in/HMlgT(9): get_object_vars(NULL) #1 /in/HMlgT(11): Foo->{closure}() #2 /in/HMlgT(16): Foo->toArray() #3 {main} thrown in /in/HMlgT on line 9
Process exited with code 255.

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