Cannot send session cookie - headers already sent [duplicate]

Answer 1

You have to execute the session_start() function only once. So just drop the one within the loop.

Also you don't have to do the session_commit() manually, in most cases PHP handles this for you automatically.

Answer 2

As the others have stated, the cause of the error is the second session_start() you are using. However, the actual reason it's throwing an error is because you are trying to set a header after you've already sent output. Since the session_start() function sets the session cookie, it tried to set the cookie header, which is after you already echo content.

Answer 3

It's not possible to set cookies (or send any other headers) after output is started. You could add ob_start() at line 1 to buffer the output.

The right solution is to separate logic from the output. Check out e.g. http://www.paragoncorporation.com/ArticleDetail.aspx?ArticleID=21

Answer 4

Remove the session_start() from inside the for loop.

Put the session_commit() outside the for loop at the very end.

Both these functions should only be called once in a script.

Answer 5

If you don't have any previeus output before the session-start() statement,then try to resave your .php file as an ansi-file or as utf-8 without BOM file. that's bc in some cases the editor itself writes things as an output in the file.

It worked for me