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<?php final class Container{ private $callables = []; public function __set(string $name,$value){ if($value instanceof Closure){ $this->callables[$name] = $value; } } public function __call($method, array $args){ if(isset($this->callables[$method])){ $callable = $this->callables[$method]; $callable($args); } } } $container = new Container(); $container->demo = function(){ return new Container(); }; var_dump($container->demo());
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
NULL
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Catchable fatal error: Argument 1 passed to Container::__set() must be an instance of string, string given in /in/2PCHa on line 6
Process exited with code 255.
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