Headers already sent on remote server, not in local

Question

I've realised a "remember me function" using $_COOKIE and on my LAMP machine where I develop it works fine.

But then I've uploaded the code to the remote server and it gives me this error

Warning:  Cannot modify header information - headers already sent

when executing

setcookie('_temp',$val, time()+$cookie_time);

I don't get why it's working on my machine, but not on the remote server...

Thank's!

PS I've doublechecked and all the code seems the same...

Output buffering is enabled on your local server, and you have whitespace before the opening ` — DaveRandom, Mar 21 '13 at 13:12
Sounds like you have a print or echo before the line executes. — Tim Lieberman, Mar 21 '13 at 13:13
@DaveRandom you were right! I had few white spaces after `?>` in one of the php files included before `setcookie()`. Thank's! — don, Mar 21 '13 at 13:25

score 0 · Accepted Answer · answered Mar 21 '13 at 13:15

0

Cookies are set via HTTP headers, so the setcookie() has to happen before sending the headers (which means before any output). The Warning you get should tell you the exact line where the output started.

answered Mar 21 '13 at 13:15

Alexander M. Turek

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Headers already sent on remote server, not in local

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