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Inregistrarea Utilizatorilor


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//acest fisier verifica daca avem date transmise, apoi preia numele, username-ul si parola utilizatorului din variabila superglobala $_POST si executa un query MySQL de tip INSERT pentru a salva datele in tabela users 

//(Id-ul lipseste din query deoarece este incrementat automat). Ca metoda de securitate, parola este encodata utilizand functia md5():




//  verifica daca exista date transmise

if ($_POST['register_name'] != "" && $_POST['register_username'] != "" && $_POST['register_password'] != '') {

    // preia datele din formular

    $name = $_POST['register_name'];

    $username = $_POST['register_username'];

    $password = md5($_POST['register_password']);

    // formeaza si executa query-ul de inserare in baza de date

    $query = "INSERT INTO `users` (`Name`,`Username`,`Password`) VALUES ('".$name."','".$username."','".$password."')";

    $result = mysql_query($query) or die ( "Error : ". mysql_error() );

    // afiseaza un mesaj de succes

    if ($result) {

        echo "Inregistrarea a fost efectuata cu succes.<br>

            Click <a href='index.php'>aici</a> pentru a reveni la pagina de login";




//MD5 (Message Digest Algorithm 5) este o functie criptografica de tip hash unidirectional, care livreaza ca rezultat o valoare fixa ca lungime de 128 Biti. Valuarea calculata cu ajutorul functiei MD5 (pe scurt md5sum), este folosita insa pe scara larga drept suma de control, la verificarea integritatii fisierelor. 

//Functia md5() din PHP returneaza hash-ul ca un numar hexazecimal (in baza 16) de 32 caractere.

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