Scope error - Call to a member function prepare() on a non-object

Question

So the scenario is simple. I use class that does something in database but in that class I call another class that also does something in DB.

Thanks, include_once ch

Answer 1

The scope of $DB isn't within the classes because you haven't passed it into the classes. At the moment its just floating around in global scope, but not within the scope of your classes.

You need to add $DB into the Log class, you can do this as a static variable like so inside your db_config.php

Log::$DB = $DB;

And use like this in your class

class Log
{
    public static $DB;

    public static function Add($action)
    {
        try
        {
            include_once "db_config.php";

            $ip = $_SERVER['REMOTE_ADDR'];

            $time = date('Y-m-d');

            $values = array($ip, $action, $time);
            $STH = self::$DBH->prepare("INSERT INTO log (ip, action, time)
                                  VALUES (?, ?, ?)");

            $STH->execute($values);

            self::$DBH = null;
            $STH = null;
        }
        catch (PDOException $e)
        {
            echo $e->getMessage();
        }
    }
}