Re: Question about session_id() and session_start()

On 20/05/2013, Maciek Sokolewicz <maciek.sokolewicz@gmail.com> wrote: > On 20-5-2013 22:14, Tim Schofield wrote: >> Matijn >> >> There are well over half a million lines of source code in PHP. It seems >> a >> little unhelpful to tell someone to go and read half a million lines of C >> when you could just tell them the answer? >> >> Thanks >> Tim >> >> Course View Towers, >> Plot 21 Yusuf Lule Road, >> Kampala >> T +256 (0) 312 314 418 >> M +256 (0) 752 963 325 >> www.weberpafrica.com >> Twitter: @TimSchofield2 >> Blog: http://weberpafrica.blogspot.co.uk >> On May 20, 2013 6:24 PM, "Matijn Woudt" <tijnema@gmail.com> wrote: >> >>> On Mon, May 20, 2013 at 5:33 AM, 孟远涛 <yuantao.meng@gmail.com> wrote: >>> >>>> I find the Note in PHP document. >>>> >>>> http://www.php.net/manual/en/function.session-id.php >>>> >>>> "Note: When using session cookies, specifying an id for session_id() >>>> will >>>> always send a new cookie when session_start() is called, regardless if >>> the >>>> current session id is identical to the one being set." >>>> >>>> I feel puzzled about this feature. Even if the current session id is >>>> identical to the one one being set, session_start will send a new >>> cookie. I >>>> want to know why session_start behave in this way. >>>> >>>> Forgive my poor English. Thanks in advance. >>>> >>> >>> You will find the answer in the PHP source code. >>> If you don't want this to happen, check if the current session id >>> matches >>> with the value you want to set it to, and don't set if they match. >>> >>> - Matijn >>> >> > > Tim, > > first of all, please bottom-post on this list. Tell that to the designers of the android gmail app :-) > Secondly, a simple google search for "php c session_start" resulted in > this: > > https://github.com/php/php-src/blob/master/ext/session/session.c#L1303 That wasn't the advice given. The advice given was to read the source code. My point was that is not very helpful advice. With a few notable exceptions the help given on this list has become less and less friendly over the years I have been reading it. This can't be good for the PHP community. > > - Tul > > Tim -- Course View Towers, Plot 21 Yusuf Lule Road, Kampala T +256 (0) 312 314 418 M +256 (0) 752 963 325 www.weberpafrica.com @TimSchofield2 Blog: http://weberpafrica.blogspot.co.uk/