<?php
class App {
public static $classes = array();
public function register($name, Callable $generator) {
var_dump($this::classes);
exit;
//$this::classes[$name] = $generator;
}
public function make($name) {
if (!isset($this::classes[$name])) {
throw new Exception('Invalid class name');
}
return $this::classes[$name]();
}
}
$app = new App;
// Internal declaration
class Foo {
public static function bar() {
return 'static';
}
}
$app->register('foo', function() {
return new Foo;
});
// Internal Usage
class SomeController {
public function view() {
$app = new App;
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();
Fatal error: Uncaught Error: Undefined constant App::classes in /in/PYOEU:9
Stack trace:
#0 /in/PYOEU(36): App->register('foo', Object(Closure))
#1 {main}
thrown in /in/PYOEU on line 9
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Fatal error: Uncaught Error: Undefined constant App::classes in /in/PYOEU:9
Stack trace:
#0 /in/PYOEU(38): App->register('foo', Object(Closure))
#1 {main}
thrown in /in/PYOEU on line 9
Process exited with code 255.
Fatal error: Uncaught Error: Undefined class constant 'classes' in /in/PYOEU:9
Stack trace:
#0 /in/PYOEU(38): App->register('foo', Object(Closure))
#1 {main}
thrown in /in/PYOEU on line 9
Process exited with code 255.
Output for 5.6.7 - 5.6.28
Fatal error: Cannot use isset() on the result of an expression (you can use "null !== expression" instead) in /in/PYOEU on line 15
Process exited with code 255.
Output for 5.5.24 - 5.5.35
Parse error: syntax error, unexpected '[' in /in/PYOEU on line 15
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '[', expecting '(' in /in/PYOEU on line 15
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_PAAMAYIM_NEKUDOTAYIM in /in/PYOEU on line 9
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_PAAMAYIM_NEKUDOTAYIM in /in/PYOEU on line 9
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/PYOEU on line 5
Process exited with code 255.
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/PYOEU 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/PYOEU on line 5
Process exited with code 255.