Using the backslash - a bit confused.

[Phrank]

Using win xp pro/php 4.3.7/IIS 6/dreamweaver cs3 on my machine.

The following command works properly on my machine.
session_save_path("C:\PHP\sessiondata");

This one doesn't:
session_save_path("C:\PHP\sessiondata\tmp");

If I don't put a backslash before the \tmp I get c:\PHP\sessiondata mp

This puts the t back in:
session_save_path("C:\PHP\sessiondata\tmp");

Why do I not need to use a \ after the C: and after the PHP in the above line?

[suntra]

\t is "tab", \n is "new line", \r is "carriage return", etc.

You should use slashes instead ( / ), it does work on Windows 😉