[PHP] Fatal error: Call to a member function on a non-object in /www/xynz on line 19

Hi there. I created an inc file with a single function and included it in my general script. When I try to start the function out the the program, I receive the following error message: Fatal error: Call to a member function on a non-object in /www/xynz on line 19 Does someone know, what this

[PHP] Call to a member function on a non-object...?

Hi. When I try to call a manual defined function in my function.inc file, I get the error: Fatal error: Call to a member function on a non-object in /www/xyz/.. on line xy I've defined the function in a seperate .inc file and included this is the mainpage. Do you have any solutions for this prob