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<?php class Thing { public function stuff() { $lamda = function() { static $y; $y++; }; var_dump(spl_object_hash($lambda)); } } $x = new Thing(); $x->stuff(); $x->stuff();
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $lambda in /in/scjBP on line 9 Fatal error: Uncaught TypeError: spl_object_hash(): Argument #1 ($object) must be of type object, null given in /in/scjBP:9 Stack trace: #0 /in/scjBP(9): spl_object_hash(NULL) #1 /in/scjBP(14): Thing->stuff() #2 {main} thrown in /in/scjBP on line 9
Process exited with code 255.

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