Title: Error installation [function.mysql-connect] wp-includes
Last modified: August 21, 2016

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# Error installation [function.mysql-connect] wp-includes

 *  [jeanne carlier](https://wordpress.org/support/users/jeanne-carlier/)
 * (@jeanne-carlier)
 * [12 years, 12 months ago](https://wordpress.org/support/topic/error-installation-functionmysql-connect-wp-includes/)
 * Hi everyone !
 * So, I am having a problem installing wordpress.
 * I put the information in the wp_config file this way :
 *     ```
       '// ** Réglages MySQL - Votre hébergeur doit vous fournir ces informations. ** //
       /** Nom de la base de données de WordPress. */
       define('XXXXXX','wordpress');
   
       /** Utilisateur de la base de données MySQL. */
       define('XXXXXX','username');
   
       /** Mot de passe de la base de données MySQL. */
       define('XXXXX,'password');
   
       /** Adresse de l'hébergement MySQL. */
       define('db474772390.db.1and1.com','localhost');
   
       /** Jeu de caractères à utiliser par la base de données lors de la création des tables. */
       define('DB_CHARSET','utf8');'
       ```
   
 * I did not touch the last line.
    I put everything in my server and had some errors
   that I could corrects but this one is still here. When I go on my webpage this
   appear :
 * Warning: mysql_connect() [function.mysql-connect]: Unknown MySQL server host ‘
   1&1.com’ (1) in /homepages/16/d474582610/htdocs/wp-includes/wp-db.php on line
   1141
 * and the code line in the file here :
 *     ```
       'if ( WP_DEBUG ) {
       			$this->dbh = mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, $new_link, $client_flags );
       		} else {
       			$this->dbh = @mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, $new_link, $client_flags );
       		}
   
       		if ( !$this->dbh ) {
       			wp_load_translations_early();
       			$this->bail( sprintf( __( "
       <h1>Error establishing a database connection</h1>
       <p>This either means that the username and password information in your <code>wp-config.php</code> file is incorrect or we can't contact the database server at <code>%s</code>. This could mean your host's database server is down.</p>
       <ul>
       	<li>Are you sure you have the correct username and password?</li>
       	<li>Are you sure that you have typed the correct hostname?</li>
       	<li>Are you sure that the database server is running?</li>
       </ul>
       <p>If you're unsure what these terms mean you should probably contact your host. If you still need help you can always visit the <a href='http://wordpress.org/support/'>WordPress Support Forums</a>.</p>'
       ```
   
 * So i don’t really understand what I did wrong, because there must be something
   but I really can’t see what.
 * If someone could help me I would really appreciate it because I am starting to
   become crazy !

Viewing 1 replies (of 1 total)

 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [12 years, 12 months ago](https://wordpress.org/support/topic/error-installation-functionmysql-connect-wp-includes/#post-3842482)
 * Check your database host details with 1& 1.

Viewing 1 replies (of 1 total)

The topic ‘Error installation [function.mysql-connect] wp-includes’ is closed to
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## Tags

 * [wp-includes](https://wordpress.org/support/topic-tag/wp-includes/)

 * In: [Installing WordPress](https://wordpress.org/support/forum/installation/)
 * 1 reply
 * 2 participants
 * Last reply from: [esmi](https://wordpress.org/support/users/esmi/)
 * Last activity: [12 years, 12 months ago](https://wordpress.org/support/topic/error-installation-functionmysql-connect-wp-includes/#post-3842482)
 * Status: not resolved

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