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<?php class A { private $c = "Secret"; } $a = function() { echo $this->c."\n"; $this->c = "new Secret"; echo $this->c; }; $b = $a->bindTo($a,"A"); $b();
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Warning: Undefined property: Closure::$c in /in/UYrLN on line 8 Fatal error: Uncaught Error: Cannot create dynamic property Closure::$c in /in/UYrLN:9 Stack trace: #0 /in/UYrLN(14): A->{closure}() #1 {main} thrown in /in/UYrLN on line 9
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Fatal error: Uncaught Error: Closure object cannot have properties in /in/UYrLN:8 Stack trace: #0 /in/UYrLN(14): A->{closure}() #1 {main} thrown in /in/UYrLN on line 8
Process exited with code 255.
Output for 5.4.1 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Catchable fatal error: Closure object cannot have properties in /in/UYrLN on line 8
Process exited with code 255.

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