动态实例化另一个类

Question

I made an example to better explain the situation. If I run this

class A
{
    public function __construct()
    {
        return new B(func_get_args());
    }
}

class B
{
    public function __construct()
    {
        var_dump(func_get_args());
    }
}

$obj = new A('a', 'b', 'c');

I get

array(1) {
  [0]=>
  array(3) {
    [0]=>
    string(1) "a"
    [1]=>
    string(1) "b"
    [2]=>
    string(1) "c"
  }
}

But what if the constructor prototype of B is public function __construct($var1, $va2, $var3) ? How could I pass the parameters to it if I don't know the exact numbers of parameters of the B constructor?

Answer 1

This may not be the one which you are looking for, But with the best of my knowledge I think there is no other solution.

Class A {
        public function __construct()
        {
            return new B(func_get_args());
        }
    }

    class B
    {
        public function __construct($paramArr = array())
        {
            var_dump($paramArr);
        }
    }

    $obj = new A('a', 'b', 'c');