<?php
class FormInfoLoader
{
    private $host;
    private $username;
    private $password;
    private $database;

    public function __construct($host, $username, $password, $database)
    {
        $this->host = $host;
        $this->username = $username;
        $this->password = $password;
        $this->database = $database;
    }

    private function connect()
    {
        mysql_connect($this->host, $this->username, $this->password);
        mysql_select_db($database);
        mysql_set_charset('utf8');
    }

    private function close()
    {
        mysql_close();
    }

    private function Read()
    {
        $formData = array();
        $formData['name'] = $_POST['name_project'];
        $formData['desc'] = $_POST['desc_project'];
        $formData['complexity'] = $_POST['complexity'];
        $formData['importance'] = $_POST['importance'];
        $formData['sday'] = $_POST['sday'];
        $formData['smonth'] = $_POST['smonth'];
        $formData['syear'] = $_POST['syear'];
        $formData['fday'] = $_POST['fday'];
        $formData['fmonth'] = $_POST['fmonth'];
        $formData['fyear'] = $_POST['fyear'];
        $formData['tags'] = $_POST['tags'];
        $formData['add'] = $_POST['add_project'];
        return $formData;
    }

    private function Validate($data)
    {
        if ($data['add_project'])
        {
            if ((($name_project && $tags && $desc_project !== "")) && ($complexity && $importance !== "0"))
            {
                return TRUE;
            }
            else
            {
                return FALSE;
            }
        }
    }

    public function Load()
    {
        $data = $this->Read();
        if($this->Validate[$data])
        {
            $query = sprintf(
                      "INSERT INTO project (name,desc,complexity,importance,sday,
                                            smonth,syear,fday,fmonth,fyear,tags,add)
                                     VALUES (\"%s\", \"%s\", %d,%d,%d,%d,%d,%d,%d,%d,\"%s\",\"%s\")",
                                              $data['name'] = $_POST['name_project'],
                                              $data['desc'] = $_POST['desc_project'],
                                              $data['complexity'] = $_POST['complexity'],
                                              $data['importance'] = $_POST['importance'],
                                              $data['sday'] = $_POST['sday'],
                                              $data['smonth'] = $_POST['smonth'],
                                              $data['syear'] = $_POST['syear'],
                                              $data['fday'] = $_POST['fday'],
                                              $data['fmonth'] = $_POST['fmonth'],
                                              $data['fyear'] = $_POST['fyear'],
                                              $data['tags'] = $_POST['tags'],
                                              $data['add'] );
            $this->connect();
            mysql_query($query) or die(mysql_error);
            $this->close();

        }
        else
        {
            echo "Заполните все поля со звездочкой!";
        }
    }
}

$loader = new FormInfoLoader('localhost', 'root', 'root', 'projects');
$loader->Load();
?>