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<?php class Thing { public function stuff() { $lamda = new Closure(); var_dump(spl_object_hash($lambda)); } } $x = new Thing(); $x->stuff(); $x->stuff();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Instantiation of class Closure is not allowed in /in/9pQc0:5 Stack trace: #0 /in/9pQc0(11): Thing->stuff() #1 {main} thrown in /in/9pQc0 on line 5
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Instantiation of 'Closure' is not allowed in /in/9pQc0:5 Stack trace: #0 /in/9pQc0(11): Thing->stuff() #1 {main} thrown in /in/9pQc0 on line 5
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Catchable fatal error: Instantiation of 'Closure' is not allowed in /in/9pQc0 on line 5
Process exited with code 255.

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