[Session / Cookie code no longer working]

looks like it is a bug in php5, it destroys all the objects before it gets to write the session data.  I fixed it with this:

register_shutdown_function("session_write_close");

[Session / Cookie code no longer working]

I have the following fragment of code that i can not get working as expected.  Essentially, its for persistant sessions.  A cookie is put on a users pc with some other info and it keeps you logged in.  Sessions are killed off if the user doesn't login for a long time.

 

This appears to work fine on my test server, and used to work on my old server, but after a server move, it appears to no longer work.  I can't fathom why.

 

on_session_write had a problem where it thought the db object no longer existed, so i recreated an object in that function.  However, the data is now not read from the database, so even though i successfully login, when i click through to another page on my site it logs me back out again.

 

Below is my session code in a functions.php page

 

  // ---------------
  // The following functions handle sessions
  // ---------------

  function on_session_start($save_path, $session_name) {
      on_session_gc();
  }

  function on_session_end() {
      // Nothing needs to be done in this function
      // since we used persistent connection.
  }

  function on_session_read($key) {
      global $db,$cookie_expire;

      $current_time = time();
      $expiry_time = $current_time+$cookie_expire;
      if ($_SESSION['username'] == 'Anonymous') $expiry_time = time() + 60;

      // SQL
      $sql = "SELECT session_data
              FROM sessions
              WHERE session_id ='$key'";

      // Query
      if ( !($result = $db->sql_query($sql)) )
      {
          db_die();
      }

      if ( $db->sql_numrows($result))
      {
          $row = $db->sql_fetchrow($result);
          return $row['session_data'];
      } else {
          return $result;
      }
  }

  function on_session_write($key, $val) {
      global $db;
      global $cookie_expire,$user_ip,$lang;

      $val = addslashes($val);
      $current_time = time();
      $expiry_time = $current_time+$cookie_expire;

      // SQL
      $insert_stmt  = "insert into sessions values('$key', ";
      $insert_stmt .= "'$val','$ip','" . $expiry_time . "')";

      $update_stmt  = "update sessions set session_data ='$val', ";
      $update_stmt .= "session_expiration = '" . $expiry_time . "', ";
      $update_stmt .= "ip = '" . $user_ip . "'";
      $update_stmt .= "where session_id ='$key'";

      // ------------------
      // First we try to insert, if that doesn't succeed, it means
      // session is already in the table and we try to update
      // ------------------

      require_once($lang['scriptpath'] . '/config.php');

      $db = new sql_db($dbhost, $dbuser, $dbpasswd, $dbname, false);
      $db->db_connect_id;

      // Query
      if ( !($result = $db->sql_query($insert_stmt)) )
      {
          // Query
          $db->sql_query($update_stmt);
      }
  }

  function on_session_destroy($key) {
      global $db,$cookie_expire;
      $db->sql_query("DELETE FROM sessions WHERE session_id = '$key'");
  }

  function on_session_gc($max_lifetime = 0)
  {
      global $db,$cookie_expire;
      $time = time(); // Current time
      $guest = ($cookie_expire + $time - 3600); // Fix so guests are removed after an hour, not cookie expire time
      $db->sql_query("DELETE FROM sessions WHERE session_expiration < '" . $time ."' OR (session_data LIKE 'username|s:9:\"Anonymous\"%' AND session_expiration < '". $guest ."')");
  }

  // This sets up the session

  function sessionstart()
  {
      global $lang,$cookie_expire,$disabled;
      session_set_save_handler("on_session_start",   "on_session_end",
                               "on_session_read",    "on_session_write",
                               "on_session_destroy", "on_session_gc");

      // Cookie Handling
      if(isset($_COOKIE['SIDdeaddonkeycom'])){
        // Resume Session
        session_id($_COOKIE['SIDdeaddonkeycom']);
      }

      session_start();

      // Cookie Handling
      if(!isset($_COOKIE['SIDdeaddonkeycom'])){
        // Save SessionID to a cookie
        setcookie('SIDdeaddonkeycom',   session_id(),   time()+$cookie_expire);;
      }

      session_register("username");
      session_register("password");
      session_register("user_id");
      session_register("logged_in");
      session_register("mod");
      session_register("admin");
      session_register("style");

      auth();
      //bancheck();
  }

 

In my header creation, if the agent is not a bot sessionstart is called to startup the session.

 

I don't understand why this isn't working anymore, anyone?

 

Thank you

[Help with preg_replace expression - newbie]

I always seem to have trouble making regular expression strings.  Basically amazon have changed their site design and now there affiliates pictures have this white matting.  The thing is, amazon have the original images you just need to change the url a tiny bit

Essentially to remove the matting from:
http://images.amazon.com/images/P/B00005LQ0Z[b].01._SS500_SC[/b]LZZZZZZZ[b]_V1124758743_[/b].jpg

you just have to change the url to
http://images.amazon.com/images/P/B00005LQ0Z[b].02.[/b]LZZZZZZZ.jpg

eg:
http://images.amazon.com/images/P/B00005LQ0Z.01._SS500_SCLZZZZZZZ_V1124758743_.jpg
http://images.amazon.com/images/P/B00005LQ0Z.02.LZZZZZZZ.jpg

Now i'm having difficulty doing a regex that works, I figure something like this would do it:
$ret = preg_replace("[/]images[/]P[/](.*)(\.01\._SS500_SC)(LZZZZZZZ)(_V[0-9]*_)(\.jpg)","[/]images[/]P[/]\\1\.02\.\\3\\5", $ret);

But it complains.  Can't seem to wrap my head round the regex.

Thanks for the no doubt simple correction

ps. hope i posted in the right place