title: Warning: mysqli_connect(): (HY000/1045): Access denied for user 'username'@'localhost' (using password: YES)
body: <blockquote>
    <p>Warning: mysqli_connect(): (HY000/1045): Access denied for user 'username'@'localhost' (using password: YES) in C:\Users\xampp\htdocs\PHP_Login_Script\config.php on line 6</p>
    
    <p>Warning: mysqli_real_escape_string() expects parameter 1 to be mysqli, boolean given in C:\Users\xampp\htdocs\PHP_Login_Script\login.php on line 10</p>
    
    <p>Warning: mysqli_real_escape_string() expects parameter 1 to be mysqli, boolean given in C:\Users\xampp\htdocs\PHP_Login_Script\login.php on line 11</p>
    
    <p>Warning: mysqli_query() expects parameter 1 to be mysqli, boolean given in C:\Users\xampp\htdocs\PHP_Login_Script\login.php on line 15</p>
    
    <p>Warning: mysqli_fetch_array() expects parameter 1 to be mysqli_result, null given in C:\Users\xampp\htdocs\PHP_Login_Script\login.php on line 16</p>
    
    <p>Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, null given in C:\Users\xampp\htdocs\PHP_Login_Script\login.php on line 19</p>
  </blockquote>
  
  <p>I'm getting this error above on localhost even if my config file is like this: </p>
  
  <pre><code>&lt;?php
  
      define("DB_HOST", "localhost");
      define("DB_USER", "root");
      define("DB_PASSWORD", "");
      define("DB_DATABASE", "databasename");
  
      $db = mysqli_connect(DB_SERVER, DB_USERNAME, DB_PASSWORD, DB_DATABASE);
  
  ?&gt;
  </code></pre>
  
  <p>This used to work, but now it doesn't anymore. Is there any problem with this code or is it not working now? <a href="http://www.9lessons.info/2009/09/php-login-page-example.html" rel="noreferrer">This</a> is the tutorial I am working on right now.</p>