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Cannot modify header

Posted: Fri Mar 07, 2008 12:52 am
by cesarcesar
I have a page I'm calling headers on. I'm getting the error
PHP Warning: Cannot modify header information - headers already sent by
So i use headers_sent() to see where the issue is. It says line 1. At line 1 I only have a <?php on the line with NO white space before it. more test.. same error. I then remove everything and only have one line of code with a header(Location:http://www.blabla.com) on line 1. Again no white space before or after PHP. Still the same error.

Why is this happening? Why are my headers failing? Thanks much.

Re: Cannot modify header

Posted: Fri Mar 07, 2008 1:42 am
by Christopher
Check all the files you include before the header() call too. make sure you also don't have a space or newline after an ?> at the end of a file .

Re: Cannot modify header

Posted: Fri Mar 07, 2008 1:53 am
by cesarcesar
Found the problem. Thanks to all those that helped.

Basically there was some type of invisible character in the beginning of my file. I copied all of the file but the first and last character, then pasted into a new doc. Saved over the old doc and it works!

I'm using EditPlus3 text editor in case anyone knows why this invisible char was added.