Script di registrazione che non funziona
Buona sera, ho da poco inserito la verifica del codice captcha alla pagina di registrazione come potete vedere qui ma la registrazione non va a buon fine e non riesco a capire il perchè, questo è lo script:
Codice PHP:
<?php
include('config.php');
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<?php
//We check if the form has been sent
if(isset($POST['cpt'], $_POST['username'], $_POST['password'], $_POST['passverif'], $_POST['email'], $_POST['avatar']) and $_POST['username']!='')
{
//We remove slashes depending on the configuration
if(get_magic_quotes_gpc())
{
$_POST['cpt'] = stripslashes($_POST['cpt']);
$_POST['username'] = stripslashes($_POST['username']);
$_POST['password'] = stripslashes($_POST['password']);
$_POST['passverif'] = stripslashes($_POST['passverif']);
$_POST['email'] = stripslashes($_POST['email']);
$_POST['avatar'] = stripslashes($_POST['avatar']);
}
//Codice di prova
if($_SESSION['CAPTCHA']!=$_POST['cpt'])
{
//We check if the two passwords are identical
if($_POST['password']==$_POST['passverif'])
{
//We check if the password has 6 or more characters
if(strlen($_POST['password'])>=6)
{
//We check if the email form is valid
if(preg_match('#^(([a-z0-9!\#$%&\\\'*+/=?^_`{|}~-]+\.?)*[a-z0-9!\#$%&\\\'*+/=?^_`{|}~-]+)@(([a-z0-9-_]+\.?)*[a-z0-9-_]+)\.[a-z]{2,}$#i',$_POST['email']))
{
//We protect the variables
$username = mysql_real_escape_string($_POST['username']);
$password = mysql_real_escape_string($_POST['password']);
$email = mysql_real_escape_string($_POST['email']);
$avatar = mysql_real_escape_string($_POST['avatar']);
//We check if there is no other user using the same username
$dn = mysql_num_rows(mysql_query('select id from users where username="'.$username.'"'));
if($dn==0)
{
//We count the number of users to give an ID to this one
$dn2 = mysql_num_rows(mysql_query('select id from users'));
$id = $dn2+1;
//We save the informations to the databse
if(mysql_query('insert into users(id, username, password, email, avatar, signup_date) values ('.$id.', "'.$username.'", "'.$password.'", "'.$email.'", "'.$avatar.'", "'.time().'")'))
{
//We dont display the form
$form = false;
?>
<div class="message">You have successfuly been signed up. You can log in.<br />
<a href="connexion.php">Log in</a></div>
<?php
}
else
{
//Otherwise, we say that an error occured
$form = true;
$message = 'An error occurred while signing up.';
}
}
else
{
//Otherwise, we say the username is not available
$form = true;
$message = 'The username you want to use is not available, please choose another one.';
}
}
else
{
//Otherwise, we say the email is not valid
$form = true;
$message = 'The email you entered is not valid.';
}
}
else
{
//Otherwise, we say the password is too short
$form = true;
$message = 'Your password must contain at least 6 characters.';
}
}
else
{
//Otherwise, we say the passwords are not identical
$form = true;
$message = 'The passwords you entered are not identical.';
}
}
else
{
//Otherwise
$form = true;
$message = 'Il codice captcha è errato.';
}
}
else
{
$form = true;
}
if($form)
{
//We display a message if necessary
if(isset($message))
{
echo '<div class="message">'.$message.'</div>';
}
//We display the form
?>
<form action="register.php" method="post">
Please fill the following form to sign up:<br />
<div class="center">
<label for="username">Username</label><input type="text" name="username" value="<?php if(isset($_POST['username'])){echo htmlentities($_POST['username'], ENT_QUOTES, 'UTF-8');} ?>" /><br />
<label for="password">Password<span class="small">(6 characters min.)</span></label><input type="password" name="password" /><br />
<label for="passverif">Password<span class="small">(verification)</span></label><input type="password" name="passverif" /><br />
<label for="email">Email</label><input type="text" name="email" value="<?php if(isset($_POST['email'])){echo htmlentities($_POST['email'], ENT_QUOTES, 'UTF-8');} ?>" /><br />
<label for="avatar">Avatar<span class="small">(optional)</span></label><input type="text" name="avatar" value="<?php if(isset($_POST['avatar'])){echo htmlentities($_POST['avatar'], ENT_QUOTES, 'UTF-8');} ?>" /><br />
<img src="captcha.php" alt="CAPTCHA">
<label for="captcha">Captcha<span class="small"></span></label><input type="text" name="cpt" value="" /><br />
<input type="submit" value="Sign up" />
</div>
</form>
<?php
}
?>
</body>
</html>
se invece provo il codice captcha da solo funziona tutto senza problemi come potete vedere qui lo scrip per la verifica della pagina è questo:
Codice PHP:
<? session_start(); ?>
<form action="example.php" method="post">
<img src="captcha.php" /><br/><br/>
Inserisci il codice che vedi: <input type="text" name="cpt" /> <input type="submit" value="Check" />
</form>
<?php
if(isset($_POST['cpt']) && !empty($_POST['cpt']))
if($_SESSION['CAPTCHA'] != strtolower($_POST['cpt']))
echo "<strong>Codice errato!</strong>";
else
echo "Ok";
?>
