PHP：从类中的另一个函数调用变量

Question

This is my class code:

class myClass
{

   public function myFunc()
   {
      $myvar   =  'Test str';
   }

   public function result()
   {
      echo myClass::myFunc()->$myvar;
   }
}

and I use this:

   $nCls = new myClass;
   $nCls->result();

To show Test str form myFunc() but nothing shown. I think the problem is :

echo myClass::myFunc()->$myvar;

Thanks for any help.

Answer 1

The problem is that you declare $myvar only in the scope of method myFunc(). That means it is not visible outside that method. Declare it as a class member instead:

class myClass
{

   private $myvar;

   public function myFunc()
   {
      $this->myvar   =  'Test str';
   }

   public function result()
   {
      echo myClass::myFunc()->$myvar;
   }
}