[Resolvido] Código de registo correcto ?

[n0TTT_]

<?php
if(isset($_POST['username'], $_POST['password'], $_POST['passverif'], $_POST['email'], $_POST['avatar']) and $_POST['username']!='')
{
if(get_magic_quotes_gpc())
{
$_POST['username'] = stripslashes($_POST['username']);
$_POST['password'] = stripslashes($_POST['password']);
$_POST['passverif'] = stripslashes($_POST['passverif']);
$_POST['email'] = stripslashes($_POST['email']);
$_POST['avatar'] = stripslashes($_POST['avatar']);
}
if($_POST['password']==$_POST['passverif'])
{
if(strlen($_POST['password'])>=6)
{
if(preg_match('#^(([a-z0-9!\#$%&\\\'*+/=?^_`{|}~-]+\.?)*[a-z0-9!\#$%&\\\'*+/=?^_`{|}~-]+)@(([a-z0-9-_]+\.?)*[a-z0-9-_]+)\.[a-z]{2,}$#i',$_POST['email']))
{
$username = mysql_real_escape_string($_POST['username']);
$password = mysql_real_escape_string(sha1($_POST['password']));
$email = mysql_real_escape_string($_POST['email']);
$avatar = mysql_real_escape_string($_POST['avatar']);
$dn = mysql_num_rows(mysql_query('select id from users where username="'.$username.'"'));
if($dn==0)
{
$dn2 = mysql_num_rows(mysql_query('select id from users'));
$id = $dn2+1;
if(mysql_query('insert into users(id, username, password, email, slot1, slot2, slot3, money, kills, deaths, score, level, admin, signup_date) values ('.$id.', "'.$username.'", "'.$password.'", "'.$email.'", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "'.time().'")'))
{
$form = false;
?>
<div class="message_s">You have successfully been signed up. You can now log in.<br />
<a href="login.php">Log in</a></div>
<?php
}
else
{
$form = true;
$message = 'Ocorreu um erro ao te registares!';
}
}
else
{
$form = true;
$message = 'ERRO<br /> O username que inseriste já existe!';
}
}
else
{
$form = true;
$message = 'ERRO<br />O email que iseriste não é válido!';
}
}
else
{
$form = true;
$message = 'ERRO <br />A password deve ter no minimo 6 digitos.';
}
}
else
{
$form = true;
$message = 'ERRO<br />As passwords não coincidem!';
}
}
else
{
$form = true;
}
if($form)
{
if(isset($message))
{
echo '<div id="signup"><div class="message_f">'.$message.'</div>';
}
?>
<div class="form">
<form action="signup.php" method="post">
	Please fill this 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 />
		<input type="submit" value="Sign Up" />
</div>
</form>
</div>
</div>
<?php
}
?>

[yoda]

Como é óbvio não vais obter respostas.