1connection

<?php

$database = new database;

ob_start();
session_start();

    //dont show notice error
	error_reporting(E_ALL & ~E_NOTICE);

	class database {

	private $pdo;

	    public function __construct() {
	        // Connection information
	        $host = 'localhost';
	        $dbname = '';
	        $user = 'root';
	        $pass = '';

	        // Attempt DB connection
	        try
	            {

	                $this->pdo = new PDO("mysql:host=$host;dbname=$dbname", $user, $pass);
	           		$this->pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
	           	  // check if db connection is succesful
	              // echo 'Successfully connected to the database!';
	            }
	                catch(PDOException $e)
	            {
	                echo $e->getMessage();
	            }

		}
}
?>