vb.org Archive - What is $this->?

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- - What is $this->? (https://vborg.vbsupport.ru/showthread.php?t=93720)

Guest190829

08-06-2005 04:46 AM

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

08-06-2005 04:51 AM

Sadly, yes.

necrotic

08-06-2005 05:00 AM

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

Guest190829

08-06-2005 05:46 AM

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

08-06-2005 06:33 AM

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

Guest190829

08-06-2005 06:47 AM

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

Marco van Herwaarden

08-06-2005 06:53 AM

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

Guest190829

08-06-2005 06:55 AM

Okay, thanks Marco! :)

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