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<?php class Foo { private $x = 3; } $foo = new Foo; $foobar = function () { var_dump($this->bar); }; // without the last parameter (optional, defaults to false), we'd get a static, not unbound closure $foobar = $foobar->bindTo(null, 'FooBar', true); $foobar->call($foo); // prints int(3)
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught ArgumentCountError: Closure::bindTo() expects at most 2 arguments, 3 given in /in/VWr0l:6 Stack trace: #0 /in/VWr0l(6): Closure->bindTo(NULL, 'FooBar', true) #1 {main} thrown in /in/VWr0l on line 6
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, 7.4.0 - 7.4.33
Warning: Closure::bindTo() expects at most 2 parameters, 3 given in /in/VWr0l on line 6 Fatal error: Uncaught Error: Call to a member function call() on null in /in/VWr0l:7 Stack trace: #0 {main} thrown in /in/VWr0l on line 7
Process exited with code 255.
Output for 5.6.7 - 5.6.21
Warning: Closure::bindTo() expects at most 2 parameters, 3 given in /in/VWr0l on line 6 Fatal error: Call to a member function call() on null in /in/VWr0l on line 7
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35
Warning: Closure::bindTo() expects at most 2 parameters, 3 given in /in/VWr0l on line 6 Fatal error: Call to a member function call() on a non-object in /in/VWr0l on line 7
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Fatal error: Call to undefined method Closure::bindTo() in /in/VWr0l on line 6
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/VWr0l on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/VWr0l on line 4
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/VWr0l on line 2
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/VWr0l on line 2
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/VWr0l on line 2
Process exited with code 255.
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