What is $this->?

[Guest190829]

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

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).

[Guest190829]

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

$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.

[Guest190829]

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

[Guest190829]

Okay, thanks Marco! :)