[SOLVED] What does this mean?

Lamez · December 14, 2007

Fatal error: Cannot redeclare class mysqldb in /mounted-storage/home48c/sub007/sc33591-LWQU/www/style/include/database.php on line 14

here is line 14

lol I am not to sure what that means.

corbin · December 14, 2007

It means that the class mysqldb is defined twice.

That happens when a class is defined (class Class {}) twice.

Example:

class Corbin {

}

class Corbin {

}

Would flag a similar error.

Basically, you need to find why the mysqldb class is being declared twice, probably an include or something twice.

Lamez · December 14, 2007

well I looked, and it is not there twice.

I just got my webhost to switch my PHP from 5 to 4.

would this have done it? It was less than a hour ago.

corbin · December 14, 2007

Well for some reason, the class mysqldb is already defined.....

If you wanna post some code, I might be able to tell where it is....

Also, it could be a PHP plugin or something....

If you make a file and put only the following in it, does it error?

class mysqldb {
}

Lamez · December 14, 2007

no, well the reason I did not post code was because I think people get turned off when helping someone with a message that contains code.

well anyways

I did try that on a test.php

I did not get an error at all!

here is database.php

<?

include("constants.php");
      
class MySQLDB
{
   var $connection;         //The MySQL database connection
   var $num_active_users;   //Number of active users viewing site
   var $num_active_guests;  //Number of active guests viewing site
   var $num_members;        //Number of signed-up users
   /* Note: call getNumMembers() to access $num_members! */

   /* Class constructor */
   function MySQLDB(){
      /* Make connection to database */
      $this->connection = mysql_connect(DB_SERVER, DB_USER, DB_PASS) or die(mysql_error());
      mysql_select_db(DB_NAME, $this->connection) or die(mysql_error());
      
      /**
       * Only query database to find out number of members
       * when getNumMembers() is called for the first time,
       * until then, default value set.
       */
      $this->num_members = -1;
      
      if(TRACK_VISITORS){
         /* Calculate number of users at site */
         $this->calcNumActiveUsers();
      
         /* Calculate number of guests at site */
         $this->calcNumActiveGuests();
      }
   }

   /**
    * confirmUserPass - Checks whether or not the given
    * username is in the database, if so it checks if the
    * given password is the same password in the database
    * for that user. If the user doesn't exist or if the
    * passwords don't match up, it returns an error code
    * (1 or 2). On success it returns 0.
    */
   function confirmUserPass($username, $password){
      /* Add slashes if necessary (for query) */
      if(!get_magic_quotes_gpc()) {
      $username = addslashes($username);
      }

      /* Verify that user is in database */
      $q = "SELECT password FROM ".TBL_USERS." WHERE username = '$username'";
      $result = mysql_query($q, $this->connection);
      if(!$result || (mysql_numrows($result) < 1)){
         return 1; //Indicates username failure
      }

      /* Retrieve password from result, strip slashes */
      $dbarray = mysql_fetch_array($result);
      $dbarray['password'] = stripslashes($dbarray['password']);
      $password = stripslashes($password);

      /* Validate that password is correct */
      if($password == $dbarray['password']){
         return 0; //Success! Username and password confirmed
      }
      else{
         return 2; //Indicates password failure
      }
   }
   
   /**
    * confirmUserID - Checks whether or not the given
    * username is in the database, if so it checks if the
    * given userid is the same userid in the database
    * for that user. If the user doesn't exist or if the
    * userids don't match up, it returns an error code
    * (1 or 2). On success it returns 0.
    */
   function confirmUserID($username, $userid){
      /* Add slashes if necessary (for query) */
      if(!get_magic_quotes_gpc()) {
      $username = addslashes($username);
      }

      /* Verify that user is in database */
      $q = "SELECT userid FROM ".TBL_USERS." WHERE username = '$username'";
      $result = mysql_query($q, $this->connection);
      if(!$result || (mysql_numrows($result) < 1)){
         return 1; //Indicates username failure
      }

      /* Retrieve userid from result, strip slashes */
      $dbarray = mysql_fetch_array($result);
      $dbarray['userid'] = stripslashes($dbarray['userid']);
      $userid = stripslashes($userid);

      /* Validate that userid is correct */
      if($userid == $dbarray['userid']){
         return 0; //Success! Username and userid confirmed
      }
      else{
         return 2; //Indicates userid invalid
      }
   }
   
   /**
    * usernameTaken - Returns true if the username has
    * been taken by another user, false otherwise.
    */
   function usernameTaken($username){
      if(!get_magic_quotes_gpc()){
         $username = addslashes($username);
      }
      $q = "SELECT username FROM ".TBL_USERS." WHERE username = '$username'";
      $result = mysql_query($q, $this->connection);
      return (mysql_numrows($result) > 0);
   }
   
   /**
    * usernameBanned - Returns true if the username has
    * been banned by the administrator.
    */
   function usernameBanned($username){
      if(!get_magic_quotes_gpc()){
         $username = addslashes($username);
      }
      $q = "SELECT username FROM ".TBL_BANNED_USERS." WHERE username = '$username'";
      $result = mysql_query($q, $this->connection);
      return (mysql_numrows($result) > 0);
   }
   
   /**
    * addNewUser - Inserts the given (username, password, email)
    * info into the database. Appropriate user level is set.
    * Returns true on success, false otherwise.
    */
   function addNewUser($username, $password, $email){
      $time = time();
      /* If admin sign up, give admin user level */
      if(strcasecmp($username, ADMIN_NAME) == 0){
         $ulevel = ADMIN_LEVEL;
      }else{
         $ulevel = USER_LEVEL;
      }
      $q = "INSERT INTO ".TBL_USERS." VALUES ('$username', '$password', '0', $ulevel, '$email', $time)";
      return mysql_query($q, $this->connection);
   }
   
   /**
    * updateUserField - Updates a field, specified by the field
    * parameter, in the user's row of the database.
    */
   function updateUserField($username, $field, $value){
      $q = "UPDATE ".TBL_USERS." SET ".$field." = '$value' WHERE username = '$username'";
      return mysql_query($q, $this->connection);
   }
   
   /**
    * getUserInfo - Returns the result array from a mysql
    * query asking for all information stored regarding
    * the given username. If query fails, NULL is returned.
    */
   function getUserInfo($username){
      $q = "SELECT * FROM ".TBL_USERS." WHERE username = '$username'";
      $result = mysql_query($q, $this->connection);
      /* Error occurred, return given name by default */
      if(!$result || (mysql_numrows($result) < 1)){
         return NULL;
      }
      /* Return result array */
      $dbarray = mysql_fetch_array($result);
      return $dbarray;
   }
   
   /**
    * getNumMembers - Returns the number of signed-up users
    * of the website, banned members not included. The first
    * time the function is called on page load, the database
    * is queried, on subsequent calls, the stored result
    * is returned. This is to improve efficiency, effectively
    * not querying the database when no call is made.
    */
   function getNumMembers(){
      if($this->num_members < 0){
         $q = "SELECT * FROM ".TBL_USERS;
         $result = mysql_query($q, $this->connection);
         $this->num_members = mysql_numrows($result);
      }
      return $this->num_members;
   }
   
   /**
    * calcNumActiveUsers - Finds out how many active users
    * are viewing site and sets class variable accordingly.
    */
   function calcNumActiveUsers(){
      /* Calculate number of users at site */
      $q = "SELECT * FROM ".TBL_ACTIVE_USERS;
      $result = mysql_query($q, $this->connection);
      $this->num_active_users = mysql_numrows($result);
   }
   
   /**
    * calcNumActiveGuests - Finds out how many active guests
    * are viewing site and sets class variable accordingly.
    */
   function calcNumActiveGuests(){
      /* Calculate number of guests at site */
      $q = "SELECT * FROM ".TBL_ACTIVE_GUESTS;
      $result = mysql_query($q, $this->connection);
      $this->num_active_guests = mysql_numrows($result);
   }
   
   /**
    * addActiveUser - Updates username's last active timestamp
    * in the database, and also adds him to the table of
    * active users, or updates timestamp if already there.
    */
   function addActiveUser($username, $time){
      $q = "UPDATE ".TBL_USERS." SET timestamp = '$time' WHERE username = '$username'";
      mysql_query($q, $this->connection);
      
      if(!TRACK_VISITORS) return;
      $q = "REPLACE INTO ".TBL_ACTIVE_USERS." VALUES ('$username', '$time')";
      mysql_query($q, $this->connection);
      $this->calcNumActiveUsers();
   }
   
   /* addActiveGuest - Adds guest to active guests table */
   function addActiveGuest($ip, $time){
      if(!TRACK_VISITORS) return;
      $q = "REPLACE INTO ".TBL_ACTIVE_GUESTS." VALUES ('$ip', '$time')";
      mysql_query($q, $this->connection);
      $this->calcNumActiveGuests();
   }
   
   /* These functions are self explanatory, no need for comments */
   
   /* removeActiveUser */
   function removeActiveUser($username){
      if(!TRACK_VISITORS) return;
      $q = "DELETE FROM ".TBL_ACTIVE_USERS." WHERE username = '$username'";
      mysql_query($q, $this->connection);
      $this->calcNumActiveUsers();
   }
   
   /* removeActiveGuest */
   function removeActiveGuest($ip){
      if(!TRACK_VISITORS) return;
      $q = "DELETE FROM ".TBL_ACTIVE_GUESTS." WHERE ip = '$ip'";
      mysql_query($q, $this->connection);
      $this->calcNumActiveGuests();
   }
   
   /* removeInactiveUsers */
   function removeInactiveUsers(){
      if(!TRACK_VISITORS) return;
      $timeout = time()-USER_TIMEOUT*60;
      $q = "DELETE FROM ".TBL_ACTIVE_USERS." WHERE timestamp < $timeout";
      mysql_query($q, $this->connection);
      $this->calcNumActiveUsers();
   }

   /* removeInactiveGuests */
   function removeInactiveGuests(){
      if(!TRACK_VISITORS) return;
      $timeout = time()-GUEST_TIMEOUT*60;
      $q = "DELETE FROM ".TBL_ACTIVE_GUESTS." WHERE timestamp < $timeout";
      mysql_query($q, $this->connection);
      $this->calcNumActiveGuests();
   }
   
   /**
    * query - Performs the given query on the database and
    * returns the result, which may be false, true or a
    * resource identifier.
    */
   function query($query){
      return mysql_query($query, $this->connection);
   }
};

/* Create database connection */
$database = new MySQLDB;

?>

constants.php

<?


/**
* Database Constants - these constants are required
* in order for there to be a successful connection
* to the MySQL database. Make sure the information is
* correct.
*/

define("DB_SERVER", "...");
define("DB_USER", "...");
define("DB_PASS", "...");
define("DB_NAME", "...");

/**
* Database Table Constants - these constants
* hold the names of all the database tables used
* in the script.
*/
define("TBL_USERS", "users");
define("TBL_ACTIVE_USERS",  "active_users");
define("TBL_ACTIVE_GUESTS", "active_guests");
define("TBL_BANNED_USERS",  "banned_users");

/**
* Special Names and Level Constants - the admin
* page will only be accessible to the user with
* the admin name and also to those users at the
* admin user level. Feel free to change the names
* and level constants as you see fit, you may
* also add additional level specifications.
* Levels must be digits between 0-9.
*/
define("ADMIN_NAME", "admin");
define("GUEST_NAME", "Guest");
define("ADMIN_LEVEL", 9);
define("USER_LEVEL",  1);
define("GUEST_LEVEL", 0);

/**
* This boolean constant controls whether or
* not the script keeps track of active users
* and active guests who are visiting the site.
*/
define("TRACK_VISITORS", true);

/**
* Timeout Constants - these constants refer to
* the maximum amount of time (in minutes) after
* their last page fresh that a user and guest
* are still considered active visitors.
*/
define("USER_TIMEOUT", 10);
define("GUEST_TIMEOUT", 5);

/**
* Cookie Constants - these are the parameters
* to the setcookie function call, change them
* if necessary to fit your website. If you need
* help, visit www.php.net for more info.
* <http://www.php.net/manual/en/function.setcookie.php>
*/
define("COOKIE_EXPIRE", 60*60*24*100);  //100 days by default
define("COOKIE_PATH", "/");  //Avaible in whole domain

/**
* Email Constants - these specify what goes in
* the from field in the emails that the script
* sends to users, and whether to send a
* welcome email to newly registered users.
*/
define("EMAIL_FROM_NAME", "noreply@lamezz.com");
define("EMAIL_FROM_ADDR", "Lamez's Site");
define("EMAIL_WELCOME", true);

/**
* This constant forces all users to have
* lowercase usernames, capital letters are
* converted automatically.
*/
define("ALL_LOWERCASE", false);
?>

trq · December 14, 2007

Your more than likely including this file twice somehow. Use include_once instead of include.

On a side note, why on earth would you wish to switch from php5 - php4? php4 becomes depricated and will no longer be supported at the end of this year.

Lamez · December 15, 2007

I downloaded this script (its a year old) I been using it, but I get some errors when I use php5

If I wanna switch back I can just edit my .htaccess

thanks I will try that.

revraz · December 15, 2007

Good way to find out, rename your Class and then you'll see if it's getting called twice.

And you should update your code to work with PHP 5, it's probaly coded in version 3.

Lamez · December 15, 2007

na, I asked the coder, its php4

no that did not work, let me rename it.

Lamez · December 15, 2007

no that did not work at all,

it just says my new class name. (in the error)

corbin · December 15, 2007

That means the file is being included twice....

Look for any reference to database.php in any files being included and the file being accessed by the web browser.... If you find more than one include or require, that's your problem ;p.

Lamez · December 15, 2007

ya I got it, I was looking at my index page and I made it include a file called side (note index.php has session.php included on it)

so I looked in side, and it was calling for session

also in session it calls for database.

so I got it fixed thanks guys!

Sign In

[SOLVED] What does this mean?

Recommended Posts

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Join the conversation

Important Information