PHP equivalent for a python decorator?

Question

I want to be able to wrap a PHP function by another function, but leaving its original name/parameter list intact.

For instance:

function A() {
    p         


        

Answer 1

You can use Aspect Oriented Programming. But you need some framework that support AOP.

For example Symfony. This is one of implementations of AOP for php https://github.com/goaop/goaop-symfony-bundle

There is also the Nette Framework (I use this one)

In principle it works like this: let's say you want to throw an exception if user is not logged in and tries to access some method.

This is just "fictive" code to show how it works.

You have some aspect method like this:

/** @AroundMethod(annotataion="isUserLogged()") */
public function checkUser(Method $method) {
    if ($this->user->isLogged()) {
        return $method->call();
    } else {
        throw new \Exception('User must be logged');
    }
}

And then you can use the annotation @isUserLogged in your services which will be probably registered in some DI container.

/**
 * @isUserLogged()
 */
public function changeUserInfo() {

}