Kód: Vybrať všetko

<?php

class Login {

    private $mysql;
    static $prihlaseny = 0;

    public function __construct($meno = NULL, $heslo = NULL) {
        if(!$this->skontroluj()){
            $this->mysql = new MySQL();
            $this->prihlas($meno, $heslo);
        }
    }
    private function prihlas($meno,$heslo){
        $meno  = $this->mysql->escape_string($meno);
        $heslo = md5($heslo);
        $dotaz = "SELECT `meno`,`prava` FROM `ucty` WHERE `meno` = '$meno' AND `heslo` = '$heslo'";
        $vysledok = $this->mysql->query($dotaz);
        if($vysledok->num_rows > 0){
            $riadok = $vysledok->fetch_object();
            $_SESSION['Uzivatel'] = array();
            $_SESSION['Uzivatel']['Meno'] = $riadok->meno;
            $_SESSION['Uzivatel']['Prava'] = $riadok->prava;
            $_SESSION['Uzivatel']['Cas'] = time();
            self::$prihlaseny = 1;
            return TRUE;
        }else return FALSE;
    }
    public function odhlas(){
        self::$prihlaseny = 0;
        unset($_SESSION['Uzivatel']);
    }
    private function skontroluj(){
        if (!is_array($_SESSION['Uzivatel'])) return FALSE;
        else if (is_array($_SESSION['Uzivatel']) && ($_SESSION['Uzivatel']['Cas'] < time()-1800)){
            $this->odhlas();
            return FALSE;
        }
        else if (is_array($_SESSION['Uzivatel']) && isset($_SESSION['Uzivatel']['Cas'])){
            self::$prihlaseny = 1;
            $_SESSION['Uzivatel']['Cas'] = time();
            return TRUE;
        }
    }
}
?>