<?php
class Database{

    private $pdo;

    public function __construct($login, $password, $database_name, $host = 'localhost'){
        $this->pdo = new PDO("mysql:dbname=$database_name;host=$host", $login, $password);
        $this->pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
        $this->pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_OBJ);
    }

    /**
     * @param $query
     * @param bool|array $params
     * @return PDOStatement
     */
    public function query($query, $params = false){
        if($params){
            $req = $this->pdo->prepare($query);
            $req->execute($params);
        }else{
            $req = $this->pdo->query($query);
        }
        return $req;
    }

    public function lastInsertId(){
        return $this->pdo->lastInsertId();
    }

}