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<?php class Foo {} $nonStatic = function() { return 43; }; $nonStaticBound = Closure::bind($nonStatic, new Foo()); echo $nonStaticBound(), "\n"; // 42 $expectedStatic = static function() { return 42; }; Closure::bind($expectedStatic, new Foo()); // Warning: Cannot bind an instance to a static closure class Bar { public static function makeNonStaticClosure() { return function() { return 41; }; } } $nonStatic = Bar::makeNonStaticClosure(); $nonStaticBound = Closure::bind($nonStatic, new Foo()); var_dump($nonStatic, $nonStaticBound); // WHAT THE WEIRD!?
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, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
43 Warning: Cannot bind an instance to a static closure in /in/Rgo87 on line 11 object(Closure)#5 (0) { } object(Closure)#6 (1) { ["this"]=> object(Foo)#1 (0) { } }
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
43 Warning: Cannot bind an instance to a static closure in /in/Rgo87 on line 11 Warning: Cannot bind an instance to a static closure in /in/Rgo87 on line 20 object(Closure)#5 (0) { } object(Closure)#6 (0) { }
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_FUNCTION, expecting T_PAAMAYIM_NEKUDOTAYIM in /in/Rgo87 on line 10
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/Rgo87 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/Rgo87 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Rgo87 on line 5
Process exited with code 255.
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