Laravel 中 request->merge() 和 request->add() 有什么区别

Question

What is the difference between request->merge() and request->add() in Laravel

I know both of them they add new key-value to input request but whats difference ?

Answer 1

the method add() is not defined on the class Request of Illuminate\Http, it is defined on the class ParameterBag of Symfony\HttpFoundation which is the result of calling the protected method getInputSource() .

The method merge() does that for you

public function merge(array $input)
{
    $this->getInputSource()->add($input);

    return $this;
}

Nothing that you can't discover with test and source code reading