Overriding method calls from proxy models

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public function verifyOrder($order_id) {
	$this->addOrderHistory($order_id, 29);
}

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$proxy = new \Opencart\System\Engine\Proxy();

foreach (get_class_methods($model) as $method) {
	if ((substr($method, 0, 2) != '__') && is_callable($class, $method)) {
		$closure = function (mixed &...$args) use ($route, $model, $method): mixed {
			...
		};
		
		$closure = $closure->bindTo($proxy, $proxy);
		
		$proxy->{$method}  = $closure;
	}
}

$this->registry->set($key, $proxy);

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<?php
/* the standard OC Proxy class*/
class Proxy {
	public function __get($key) {
		return $this->{$key};
	}
	
	public function __set($key, $value) {
		 $this->{$key} = $value;
	}
	
	public function __call(string $method, array $args) {
		// Hack for pass-by-reference
		foreach ($args as $key => &$value);

		if (isset($this->{$method})) {
			return call_user_func_array($this->{$method}, $args);
		} else {
			$trace = debug_backtrace();

			throw new \Exception('<b>Notice</b>:  Undefined property: Proxy::' . $method . ' in <b>' . $trace[0]['file'] . '</b> on line <b>' . $trace[0]['line'] . '</b>');
		}
	}
}

class MyClass {
	public function a() {
		echo 'in method a <br>';
	}
	
	public function b() {	
		echo 'in method b <br>';
		$this->a();
	}
}

$proxy = new Proxy();
$my_class = new MyClass();

foreach (get_class_methods('MyClass') as $method) {
	$closure = function (&...$args) use ($method, $my_class) {
		echo 'call proxy ' . $method . ' <br/>';
		call_user_func_array([$my_class, $method], []);
	};
	
	$closure = $closure->bindTo($proxy, $proxy);
	
	$proxy->{$method} = $closure;
}

$proxy->b();

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call proxy b 
in method b
call proxy a 
in method a

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call proxy b 
in method b
in method a

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var_dump($this);

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object(MyClass)

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object(Proxy)

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public function verifyOrder($order_id) {
	$this->load->model('checkout/order');
	$this->model_checkout_order->addOrderHistory($order_id, 29);
}

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In addition to changing data through arguments, event handlers can also return values using return. For example, if the controller/common/home/before event handler returns the generated html code via return, then the entire output of the common/header controller will be replaced by it, and the common/header controller itself will not be executed, but the after event will be fired. Those. it is possible to replace the execution data of functions without executing them.

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class Order extends \Opencart\System\Engine\Model {
	...
	public function customFunction() {
		$this->load->model('checkout/order');
		$this->model_checkout_order->addHistory(...); // this will trigger events registered under "model/checkout/order.addHistory"
	}
	
	public function anotherCustomFunction() {
		$this->addHistory(...); // this will not trigger any events registered under "model/checkout/order.addHistory"
	}
	...
}