函数（$ param）添加到函数__construct

Question

I have two functions in a class:

        public function __construct()
        {
          $this->page=$this->Pagination_page();
        }

        function Pagination_page($page){     
          return $page;
        }

This version is not working. How can I add to the $this->page the Pagination_Page value?

Answer 1

It's not working because the constructor is initialized when you instanciate the object - it's 0 there. But you cannot assign this value of $page at the start you must call the method first. If you want to do this you should create it in the construct directly:

public function __construct($_page)
    {
      $this->page=$_page;
    }

If you want to use the "thing" you created then:

public function __construct($_page)
    {
      $this->page=$this->Pagination_page($_page);
    }
       function Pagination_page($page){     
           return $page;
    }