Salve, ho dei problemi al mio sistema login-registrazione, ma dalla parte della registrazione.
Visto che ho lavorato al mio sito su Altervista questo sistema funzionava, ma quando ho trasferito tutti i file in un altro hoster e dopo aver settato le configurazioni dei database mysql e fatto le tabelle per bene provo a registrarmi, ma ironia della sorte, mi dice di compilare tutti i campi, cosa che io ho fatto...
ora io non trovo quale sia il problema, ma il codice php è giusto, cioè, su altervista funzionava a meraviglia, ma nel nuovo hoster no.

Vi posto il codice php
Codice PHP:
<?php
                            
                                
if(!isset($_GET['passkey'])){
                                
                                    if(!isset(
$_POST['invia'])){ ?>
                                    
                                        <form method="post" action="#" id="formregistrazione">
                                        
                                            <label for="username">Username</label>

                                            <input type="text" name="username" id="username">


                                            <label for="password1">Password</label>

                                            <input type="password" name="password1" id="password1">


                                            <label for="password2">Conferma password</label>

                                            <input type="password" name="password2" id="password2">


                                            <label for="email">E-mail</label>

                                            <input type="text" name="email" id="email">


                                            <input type="submit" name="invia" id="registrati" value="Registrati">
                                        </form>
                                    
                            <?php    } else {
                
                
// creazione di un codice di conferma
                
$codiceconferma md5(uniqid(rand()));
                
                
// Valori del form //
                
                
$username mysql_real_escape_string($_POST['username']);
                
$password1 mysql_real_escape_string($_POST['password1']);
                
$password2 mysql_real_escape_string($_POST['password2']);
                
$email mysql_real_escape_string($_POST['email']);
            
                
// controllo campi vuoti e password //
                
                
if($username == "" || $email == ""){
                    echo 
"Devi riempire tutti i campi";
                }elseif(
$password1 == "" || $password2 == ""){
                    echo 
"Devi riempire tutti i campi";
                }elseif(
$password2 != $password1){
                    echo 
"Le password devono coincidere";
                }else{
                    
                    
$recuperauseremail mysql_query("SELECT id FROM utenti WHERE username='$username' OR email='$email'");    
                    
$contausermail mysql_num_rows($recuperauseremail);
                    
                    if(
$contausermail 0){
                    
                        echo 
"Nome utente o email già disponibili";
                    
                    } else {
                    
                        
// Invia dati alla tb utenti_temp //
                        
                        
$inviautentitemp mysql_query("INSERT INTO utenti_temp (codiceconferma, username, password, email) VALUES ('$codiceconferma', '$username', '$password2', '$email')");
                        
                        if(
$inviautentitemp){
                            
                            
$to=$email;
                                                                                        
$subject="Conferma la registrazione";
                                                                                        
$header="Da: Amministratore";
                                                                                        
$message="Caro nuovo utente registrato, \r\n";
                                                                                        
$message.="grazie per la Sua registrazione al sito The Evolution Drifts. Con la Sua registrazione può avere accesso a molti contenuti che gli utenti ospiti non possono avere:\r\n";
                                                                                        
$message.="- Download di mod fatte dai membri del clan; \r\n";
                                                                                        
$message.="- Download di videogiochi consigliati dal clan; \r\n";
                                                                                        
$message.="- Download di programmi di ogni genere; \r\n";
                                                                                        
$message.="- Modifica del profilo personale; \r\n";
                                                                                        
$message.="- Interazione con i social network più attiva. \r\n";
                                                                                        
$message.=" \r\n";
                                                                                        
$message.="Di seguito Le forniamo il link per confermare la Sua registrazione al sito: \r\n";
                                                                                        
$message.="http://www.theevolutiondrifts.tk/ted/register.php?passkey=$codiceconferma \r\n";                                                
                                                                                        
$message.="(Se il link non funziona copiatelo e incollatelo nella barra degli indirizzi) \r\n";
                                                                                        
$message.=" \r\n";
                                                                                        
$message.="Lo staff di The Evolution Drifts";
                                                            
                                                            
                                                                                        
$sentmail=mail($to,$subject,$message,$header);
                        
                        }
                        
                        if(
$sentmail){
                        
                            echo 
"Per completare la registrazione controlla la tua casella di posta elettronica e clicca sul link di attivazione.";
                            
                        }else{
                        
                            echo 
"Errore, link di attivazione non inviato.";
                        
                        }
                    
                    }
                }
                
            }
        
        } else {
            
            
$passkey $_GET['passkey'];
            
            
$sqlrecuperauser "SELECT * FROM utenti_temp WHERE codiceconferma = '$passkey'";
            
$risultatouser mysql_query($sqlrecuperauser);
            
            if(
$risultatouser) {
            
                
$contauser mysql_num_rows($risultatouser);
                
                if(
$contauser == 1){
                
                    
$rows mysql_fetch_array($risultatouser);
                    
$username $rows['username'];
                    
$email $rows['email'];
                    
$password $rows ['password'];
                    
                    
$passwordcript md5($password);
                    
                    
$sqlconfermauser mysql_query("INSERT INTO utenti (username, password, email) VALUES ('$username', '$passwordcript', '$email')");
                    
                    if (
$sqlconfermauser) {
                    
                        echo 
"Il tuo account è stato attivato con successo";
                        
$sqleliminadati mysql_query("DELETE FROM utenti_temp WHERE codiceconferma = '$passkey'");
                    
                    } else {
                    
                        echo 
"Errore!";
                    
                    }
                
                }
            
            }
            
        }

    
?>