Re: [Q] session variables wouldn't keep contents.

----- Original Message ----- From: "Chung Ha-Nyung" <alita@kldp.org> To: <php-general@lists.php.net> Sent: Tuesday, March 13, 2001 3:19 PM Subject: [PHP] [Q] session variables wouldn't keep contents. > > Hi guys, > > Some php programs doesn't seem to work normally in a certain > server. Those wokred correctly in my Debian box. > Session is the problem. The code seems wrong. Although, it can work. It depends on php.ini. > > It seems that the contents of session variables disappears after > reloading the php page. Here is the program. > > ---- test.php ---- > <html> > <body> > <?php > session_start(); You must start session before output anything to browser, or you must use buffering to do this, or you must use URL mode for session. i.e. This code sends "<html><body>" before starting session and cookie header must be sent before if session is cookie mode. I recommend to write session_start() before programmers do anything. > if(!session_is_registered("name")) { > echo "session is not registered<br><br>"; > session_register("name"); > $HTTP_SESSION_VARS["name"] = "test"; > echo "newly registered<br><br>"; > } > $session_name = $HTTP_SESSION_VARS["name"]; > echo session_encode()."<br><br>"; > echo "session_name = $session_name"; > ?> > </body> > </html> > ---- test.php ---- > > Can I handle it with only php configuration file? Or Do I have to > modify my php programs? I'm not sure what do you want to handle "it". Starting session can handle in php.ini and inside code. > > In addition to this, I have a few questions about the work of session > in php 4.0.4 > > Q1) Do I have to use session_start() explicitly although session.auto_start > is set to 1 in php.ini? No. Session will be started automatically, so programmer does not have to write it. I recommend to write session_start(), though. Also, session will be started implicitly if programmer uses session functions even without setting session.auto_start to true. It should work, if programmer didn't send any output to browser before. i.e. Programmer does not even have to write session_start() even if session.auto_start is false. I don't recommend it, though. > Q2) Do I have to use session_register("variable_name")? > In my Debian woody box, it seems to run well without it. It seems works fine on my box without it when I use $HTTP_SESSION_VARS at least. I think it will not work without $HTTP_SESSION_VARS. (PHP4.0.4pl1/Apache/RedHat Linux7) Regards, -- Yasuo Ohgaki > > Regards, > > -- > Chung Ha-Nyung <alita@kldp.org> > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > For additional commands, e-mail: php-general-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net > >