i need help with database and php‏

Community support
#1

Hi,
I have a 000webhost account and I made a database but the problem is that the database isn’t linked with the php and this is making me frustrating can you please give me the code that I paste on my php here is the database information

#2 

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$database = "database";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$database", $username, $password);
    // set the PDO error mode to exception
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "Connected successfully"; 
    } catch(PDOException $e) {    
    echo "Connection failed: " . $e->getMessage();
    }
?>