Código PHP:
<?
$host = " ";
$user = " ";
$pass = " ";
$db = " ";
$conn = mysql_connect($host,$user,$pass) or die ("Error:".mysql_error());
mysql_select_db($db,$conn) or die ("Error:".mysql_error());
$User = $_POST["User"];
$Password = $_POST["Pass"];
$RepPass = $_POST["RepPass"];
$Email = $_POST["Email"];
if(mysql_query("insert into userTable (UserId, Password, Email)
VALUES ('$User', '$Password', '$Email')")){
echo 'Funciona';}
else{
echo 'No Funciona';};
?>
ME dices :)