小编der*_*ick的帖子

好吧,所以我是一个完全初学者在PHP的OOP,我想我会尝试一些简单的开始,但它不工作我期望的

<?php 

class mySQL{

  var $host;
  var $username;
  var $password;
  var $database;

  public function connect($set_host, $set_username, $set_password, $set_database){
    $this->host = $set_host;
    $this->username = $set_username;
    $this->password = $set_password;
    $this->database = $set_database;

    mysql_connect("$host", "$username", "$password")or die("cannot connect");
    mysql_select_db("$database")or die("cannot select DB");

  }

}

$connect = new mySQL();
$connect -> connect('localhost', 'user', 'pass', 'database1');

$settings_query = mysql_query("SELECT * FROM settings");
$settings = mysql_fetch_array($settings_query);

echo $settings['title']; 

?>

我得到的只是"无法连接"在我的页面上.