Global Variables

Echilon

How do I set variables using a function that are then accessible from all other functions used? I've read a few tutorials and tried using a class, but I'm not really sure what I'm doing.
This is what I have so far:

class settings {
var $dbuser = "username";
var $dbpass = "pass";
}
function connect() {
global $dbuser;
global $dbpass;
mysql_pconnect("localhost",$dbuser,$dbpass);
}

I'm sure I'm making an obvious mistake, but I'd appreciate any help.

dalecosp

Well, the function should be in the class, right? You just need to move a bracket. Consider:

<?php

class settings {
   var $dbuser = "username";
   var $dbpass = "pass";

   function tell() {
      global $dbuser;
      global $dbpass;
      echo "user $dbuser, pass $dbpass";
   } 
}

$foo=new settings();
settings::tell();

?>

HTH,

🙂

Echilon

Is there no way I can create them as global outisde of the function? I have a load of other stuff defined in that class, and the functions in my script use the variables set in the class, so I'd have to create a big 'dummy' class to hold all the functions.

dalecosp

Well, sure; but that's not what it looked as if you were asking at first.

How about $_GLOBALS['dbuser']="Me"; ??

Have a look at variable scope and/or, if necessary, variables themselves.

dalecosp

Incidentally, to some extent, having a variable available to the entire system is exactly what objects (classes, methods, properties) were designed to not implement.

So you may want to reconsider your architecture. Or, not .... 🙂

Echilon

Thanks alot for the help. I'd never actually read up on the scope of variables before. What I'm going to do instead is dynamically generate a config page which can set the settings I need every time the script is run. It should be easier 🙂