I\'ve changed my hosting server from a Windows to a Linux system. But when I run my PHP program, I get this errors:
Warning: session_start() [function.sessio
You get the error because there are some output before you have initiated session_start(); This could be caused because of your editor that include a BOM character in the beginning of your file. Try open the code in notepad and see if there are any lines before session_start(), (spaces) or things like that and remove them.
To fix your editor if it add a bom in your file, you need to go to your settings and turn it off.