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<?php final class Subject { private function __construct() {} public static function getFactory() { return new Factory(function() { new Subject(); }); } } final class Factory { private $callback; public function __construct(callable $callback) { $this->callback = $callback; } public function getProduct() { return call_user_func($callback); } } $factory = Subject::getFactory(); $subject = $factory->getProduct();
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: Undefined variable $callback in /in/9qQlD on line 26 Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, no array or string given in /in/9qQlD:26 Stack trace: #0 /in/9qQlD(31): Factory->getProduct() #1 {main} thrown in /in/9qQlD on line 26
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: Undefined variable $callback in /in/9qQlD on line 26 Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, no array or string given in /in/9qQlD:26 Stack trace: #0 /in/9qQlD(31): Factory->getProduct() #1 {main} thrown in /in/9qQlD on line 26
Process exited with code 255.
Output for 8.0.0 - 8.0.9
Warning: Undefined variable $callback in /in/9qQlD on line 26 Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($function) must be a valid callback, no array or string given in /in/9qQlD:26 Stack trace: #0 /in/9qQlD(31): Factory->getProduct() #1 {main} thrown in /in/9qQlD on line 26
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: callback in /in/9qQlD on line 26 Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/9qQlD on line 26
Output for 7.3.32 - 7.3.33
Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/9qQlD on line 26
Output for 5.3.0 - 5.3.29
Catchable fatal error: Argument 1 passed to Factory::__construct() must be an instance of callable, instance of Closure given, called in /in/9qQlD on line 11 and defined in /in/9qQlD on line 19
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, expecting ')' in /in/9qQlD on line 9
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/9qQlD on line 9
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/9qQlD on line 3
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_CLASS in /in/9qQlD on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/9qQlD on line 3
Process exited with code 255.
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