PHP 5 and Strict Standards error

Why I ge开发者_运维问答t this error?:

Strict Standards: Non-static method Hello_Misc::fix_protocol() should not be called statically, assuming $this from incompatible context in test.php on line 834

line 834:

$this->my_url = Hello_Misc::fix_protocol($my, 1);

I am using latest version of PHP (>= 5.1.3) but in previous version (<= 5.1.2) it does work (ref).

The static keyword is the key! You need to declare the method as static:

class Hello_Misc {

   static public function fix_protocol($p1, $p2) {
      // code
   }

}

However, it you do so (and you should), you must make sure you're not using object context (i.e. $this) in this method. If you do, you will have to review your design a little.