Call to a Member Function

[Nick]

My error is

Call to a member function duplicate() on a non-object

The function duplicate() is a function in my 'db' class that checks to see if there are any duplicate records in the database given the parameters ($field, $column, $value)

I am accessing it through my 'user' class as

$db->duplicate($field, $column, $value);

I am not sure what that error would mean. All my functions are public.

[Nick]

Nevermind, I figured it out. I just needed to redefine the $db = new db(); in my user class. I'll look into global variables

[xcessive]

Or you could stop using an instance variable like a noob and make it a static class...

[Nick]

But I am a noob! xD

Making global variables fixed it. Like:

$db = new db();
global $db;

[xcessive]

Its still wildly inefficient and is a bad design practice. Use a static class.