How to check if Headers already been sent in PHP

Posted by Industrial on Stack Overflow See other posts from Stack Overflow or by Industrial
Published on 2010-05-12T16:10:14Z Indexed on 2010/05/12 16:14 UTC
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Hi!

I think most of us know about the infamous "Headers already sent" error in PHP. Can I check someway if headers already have been sent?

It would be really handy to do such, before going all out with trying to set some SESSION data or similar.

Thanks!

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