visitors who create shortcuts losing variables?

[smiddy]

I have some repeat visitors to my site that get there using a bookmark or shortcut and going directly to a php form I have. I occassionally develop new features and searches on this form and it seems that when these people come back to visit my page using the shortcut, they are leaving errors in my log regarding undefined variables. I got a php Fatal error call to undefined function after I added a new function to a page recently. Worked great for people visiting the main page and then clicking to get to the form, but for the shortcuts?

Is it possible that these users are getting the old page when they come back? What else would be causing these kind of errors?

Let me know if I can supply more information?

Thanks in advance!

[henry0]

When getting to the form is it as the result of a direct link?
Or after going through some authentication script?

Therefore if going back directly to the form and bypassing any identification system they will not benefit of a session (if you use sessions)

[smiddy]

No authentication. Does it make sense that they would lose the variables based on a direct link to the page? I don't supply any cookies.

[henry0]

Could you be more precise
post some code samples and comment the process
are you passing a value through: (for example)
$abc=$_POST['abc'];