Require help explaining why connection suddenly has stopped working

[Vel]

Hey guys, I have come across what I think is one of the craziest bugs I have ever seen. I'm developing a site on my local machine using WAMP (version 2.2). I have a pretty standard database connection class but for some reason all of a sudden tonight it's stopped working.

 

The code:

if(!defined("IN_PHPBB")) { exit; }

require 'config.php';

class db_conn {

public $connection = NULL;

function db_conn() {
	global $abchost, $abcname, $abcpasswd, $abcuser;
	if(!$this->connection = mysql_connect($abchost, $abcuser, $abcpasswd)) {
		echo "Error connecting to the database. Please check the config file.";
		if(defined('DEBUG')) {
			echo "<br />MySQL Error: " . mysql_error();
		}
		exit;
	}
	if(!mysql_select_db($abcname, $this->connection)) {
		echo "Error selecting the database. Please check the config file.";
		if(defined('DEBUG')) {
			echo "<br />MySQL Error: " . mysql_error();
		}
		exit;
	}
}

}

$db_conn = new db_conn;

 

Config.php contains nothing but the four variables for connecting to the db. Nothing has changed across either file but for some reason if I try to echo out the variables in the function they are all empty. Even stranger, the first part of the connection works (with 3 empty variables!), and it's mysql_select_db that's throwing an error.

 

Why, completely out of the blue, with nothing changing, would the function not be able to read the variables any more. If I manually copy and paste the variables from the config file into the class function then it connects fine.

[RussellReal]

Well, If you're using WAMP, you probably don't have MySQL running, try restarting everything, if not, dump some errors and see exactly why its not working, and post the errors here and I can help you out further.

[Vel]

Well, If you're using WAMP, you probably don't have MySQL running, try restarting everything, if not, dump some errors and see exactly why its not working, and post the errors here and I can help you out further.

I already tried restarting it with no results and the fact that I can post the variables in the function and everything works fine proves that MySQL is running fine. The only error I'm getting is the MySQL Error: No database selected. I have full error logging turned on and am getting 0 PHP errors. I'm really pulling my hair out over this one, any help is really appreciated.

[RussellReal]

You are not selecting a database, you need to use mysql_select_db

 

 

[Vel]

You are not selecting a database, you need to use mysql_select_db

Please actually read my OP and code before assuming I'm an idiot.