<?php
    $db_server = "localhost";
    $db_name = "friendbook";
    $db_username = "web";
    $db_password = "Password456";

    try{
        $db_connection = new PDO("mysql:host=$db_server;dbname=$db_name", $db_username, $db_password);
        $db_connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    }catch(PDOException $e){
        echo "PDOException: ".$e->getMessage();
    }catch(Exception $e){
        echo "Exception: ".$e->getMessage();
    }
?>