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1. MarkHammack
   Member
   Posted 3 years ago #

   I have searched for hours trying to find a plugin or some direction that will prevent the same registered user and password from logging in from two different computers at the same time.
   Please Help this Newbie.
   Thanks!

2. burhanuddin
   Member
   Posted 3 years ago #

   i just found on webmasterworld
   

   #prevent Membership Fraud
   //check if someone is logged in
   if (isset($_SESSION['user_id'])) {
   //connect to your db
   require('../../../connect.php');
   /*build query using hirer_id and current_session_id, get count. If query comes back with a 1, it means there is a match. A match is good because it means no one else logged in during their session. On the other hand, a 0 indicates that no match, meaning someone else logged in simultaneously. Zeros get the boot of death.*/
   $result = mysql_query('SELECT COUNT(*) FROM user WHERE user_id='.$_SESSION['user_id']." AND session_id='".mysql_real_escape_string(md5(session_id()))."'");
   $login_status = mysql_result($result,0,0);
   //recall 1 is good, 0 is bad
   if (0 == $login_status) {
   //give them the boot
   //this is copied from my logout script
   $_SESSION = array(); //destroy the variables
   session_destroy(); //destroy the session itself
   setcookie(session_name(), '', time()-300, '/', '', 0); //destroy the cookie
   echo 'Hey, someone else logged in using your account info which means you get the boot.';
   exit();
   }
   }

   How to realize into wordpress ?

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