What is $this->?

OOP is giving me a headache. I'm working on vbspace, and I'm just messing around with the space class...is this correct for the most part? It's not the full class just one function

PHP Code:


<?php

class space //myspace class: the backbone of the hack.
{
   var $type;
   var $cache;

   public function get_soptions()
   {
       $options = $db->query_read("SELECT * from " . TABLE_PREFIX . " space_options");
       
       while ($soptions = $db->fetch_array($options))
       {
          $this->type = $soptions[type];
          $this->cache = $soptions[cache];
       }
    }
}

?>

If not, can you explain what $this-> is? I'm seeing it everywhere, and I think I have it right. It's just a pseudo instance of a the current class. Am I right?

[Adrian Schneider]

Sadly, yes.

[necrotic]

Also, make sure $db is globalized somehow (add global $db before calling it for example).

Just another question, when I use the class and make a new instance of it

PHP Code:

 $new = new space(); 


Would $new->cache be equal to $this -> cache? I'm guessing it should...

[Marco van Herwaarden]

Yes, as long as you are inside a function of that class.

How would I get $new->cache to have the same value outside of the function? Make it global?

[Marco van Herwaarden]

Outside your class you would use $new->cache, inside you use $this->cache

Okay, thanks Marco!