title: XAMPP - Fatal error: Call to undefined function mysql_connect()
body: <p>I downloaded downloading XAMPP for my learning lesson. After I finished the
  install, I can use it normally. But when I try to connect to MySQL I keep return this error.</p>
  
  <pre><code>&lt;?php
  
  define("DB_HOST","localhost");
  define("DB_USER","root");
  define("DB_PWD","");
  define("DB_DBNAME","text");
  define("DB_CHARSET","utf8");
  
  ?&gt;
  function connect(){
      $link=mysql_connect("DB_HOST","DB_USER","DB_PWD") or die("连接失败Error:".mysql_error().":".mysql_error());
      mysql_select_db(DB_DBNAME);
      return $link;
  }
  </code></pre>