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<?php class foo { static private $fn; static public function reg() { $x = new foo; self::$fn = function () use ($x) { $x->bar(); }; } public function baz() { self::$fn(); } private function bar() { echo 'bar'; } } foo::reg(); $foo = new foo; $foo->baz();
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
Warning: Undefined variable $fn in /in/m6ZEn on line 16 Fatal error: Uncaught Error: Method name must be a string in /in/m6ZEn:16 Stack trace: #0 /in/m6ZEn(28): foo->baz() #1 {main} thrown in /in/m6ZEn on line 16
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: fn in /in/m6ZEn on line 16 Fatal error: Uncaught Error: Function name must be a string in /in/m6ZEn:16 Stack trace: #0 /in/m6ZEn(28): foo->baz() #1 {main} thrown in /in/m6ZEn on line 16
Process exited with code 255.
Output for 7.3.32 - 7.3.33
Fatal error: Uncaught Error: Function name must be a string in /in/m6ZEn:16 Stack trace: #0 /in/m6ZEn(28): foo->baz() #1 {main} thrown in /in/m6ZEn on line 16
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Notice: Undefined variable: fn in /in/m6ZEn on line 16 Fatal error: Function name must be a string in /in/m6ZEn on line 16
Process exited with code 255.
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