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<?php class Foo { public $a = 'b'; public function bar() { $fnc = function () { var_dump(isset($this)); var_dump(isset($this->a)); echo $this->a; }; $fnc->bindTo(NULL)(); } } $foo = new Foo(); $foo->bar();
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: Cannot unbind $this of closure using $this in /in/0PD2N on line 14 Fatal error: Uncaught Error: Value of type null is not callable in /in/0PD2N:14 Stack trace: #0 /in/0PD2N(19): Foo->bar() #1 {main} thrown in /in/0PD2N on line 14
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Deprecated: Unbinding $this of closure is deprecated in /in/0PD2N on line 14 bool(false) Fatal error: Uncaught Error: Using $this when not in object context in /in/0PD2N:10 Stack trace: #0 /in/0PD2N(14): Foo::{closure}() #1 /in/0PD2N(19): Foo->bar() #2 {main} thrown in /in/0PD2N on line 10
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33
bool(false) Fatal error: Uncaught Error: Using $this when not in object context in /in/0PD2N:10 Stack trace: #0 /in/0PD2N(14): Foo::{closure}() #1 /in/0PD2N(19): Foo->bar() #2 {main} thrown in /in/0PD2N on line 10
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Parse error: syntax error, unexpected '(' in /in/0PD2N on line 14
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/0PD2N on line 8
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/0PD2N on line 8
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/0PD2N on line 4
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
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/0PD2N on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/0PD2N on line 4
Process exited with code 255.

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