<?php

class SQLObject{
    private $_dbLink = NULL;
    private $_dbHost = NULL;
    private $_dbName = NULL;
    private $_dbUser = NULL;
    private $_dbPass = NULL;

    public function __construct($host, $name, $user, $pass){
        $this->_dbHost = $host;
        $this->_dbName = $name;
        $this->_dbUser = $user;
        $this->_dbPass = $pass;
        if(!$this->_openConnection())
            throw new Exception('La connexion a la base de données a échoué.');
    }

    public function getLink(){
        if(!is_null($this->_dbLink) OR $this->openConnection())
            return $this->_dbLink;
        else
            return false;
    }

    private function _openConnection(){
        try{
            $dsn = 'mysql:dbname=' . $this->_dbName . ';host=' . $this->_dbHost;
            $this->_dbLink = new PDO($dsn, $this->_dbUser, $this->_dbPass, array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION ));
            return true;
        }
        catch(Exception $e){
            return false;
        }
    }
}