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<?php class App { public static $classes = array(); public static function register($name, Callable $generator) { $classes[$name] = $generator; } public static function make($name) { if (!isset($classes[$name])) { throw new Exception('Invalid class name'); } return ($classes[$name])(); } } // Internal declaration class Foo { public static function bar() { return 'static'; } } App::register('foo', function() { return new Foo; }); // Internal Usage class SomeController { public function view() { echo App::make('foo')->bar(); } } // Some extending application class MyFoo extends Foo { public static function bar() { return 'can\'t make internal methods use this.'; } } App::register('foo', function() { return new MyFoo; }); $c = new SomeController; $c->view();
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, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Exception: Invalid class name in /in/vLXDG:13 Stack trace: #0 /in/vLXDG(41): App::make('foo') #1 /in/vLXDG(63): SomeController->view() #2 {main} thrown in /in/vLXDG on line 13
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Parse error: syntax error, unexpected '(' in /in/vLXDG on line 16
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '(' in /in/vLXDG on line 16
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/vLXDG 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
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/vLXDG on line 5
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/vLXDG on line 5
Process exited with code 255.
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