How can I get session id in php and show it

Question

I need to use some unique id like session id  How can I get session id in php

User · Accepted Answer

session start        echo session id

User · Answer

I would not recommend you to start session just to get some unique id  Instead  use such things as uniqid   because it s intended to return unique id   However  if you already have session  then  of course  use session id   to get your session id - but do not rely on that  because  unique id  isn t same as  session id  in common sense  for example  multiple tabs in most browsers will use same process  thus  use same session identifier in result - and  therefore  different connections will have same id  It s your decision about desired behavior  I ve mentioned this just to show the difference between session id and unique id

User · Answer

Before getting a session id you need to start a session and that is done by using  session start   function   Now that you have started a session you can get a session id by using  session id        A small piece of code for setting  displaying and destroying session in PHP      lt  php session start     r session id        SOME PIECE OF CODE TO AUTHENTICATE THE USER  MOSTLY SQL QUERY           now registering a session for an authenticated user      SESSION  username    username      now displaying the session id         echo  the session id id     r  echo   and the session has been registered for      SESSION  username         now destroying the session id     if isset   SESSION  username             SESSION array        unset   SESSION       session destroy        echo  session destroyed          gt

User · Answer

In the PHP file first you need to register the session    lt   session start           SESSION  id      userData  user id     gt    And in each page of your php application you can retrive the session id    lt   session start       id      SESSION  id         gt

User · Answer

if isset   POST  submit             if  empty   POST  login username     amp  amp   empty   POST  login password                 uname     POST  login username          pass     POST  login password          res  SELECT count    uname role FROM users WHERE uname   uname  and  password   pass      query mysql query  res or die  mysql error        list  result  uname  role    mysql fetch row  query        SESSION  username      uname    SESSION  role      role   if isset   SESSION  username     amp  amp    SESSION  role     admin       if  result gt 0                 header   Location Dashboard php                  else                  header   Location loginform php

User · Answer

You have uniqid function for unique id   You can add prefix to make it more unique  Source   http   pk1 php net uniqid

[php] How can I get session id in php and show it?

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