PHP Undefined variable in functions and included scripts

Question

I\'ve read a LOT of things about this problem, however I still cannot fix it.

In my functions file I declare a variable with a value like so:

$px_host =          


        

Answer 1

If you set the variable global, you will need to set it global in the function as well. In this case:

$px_host = "localhost";

function dbQuery($database, $reqquery){
    global $px_host;
    if(!$connect = mysql_connect($px_host, $px_dbuser, $px_dbpass)){
        exit("Error - cannot connect to MySQL server - " . mysql_error());
    }

    if(!$database = mysql_select_db($database)){
        exit("Error - cannot select database - " . mysql_error());
    }

    if(!$query = mysql_query($reqquery)){
        exit("Error - query error.");
    }

    return $query;
}

This should fix this problem.