I recommend just adding a bit more to your error detect so it tells the error on the page. You could always disable the error later. Change your code as follows:
//error checking code
$dbcnx = mysql_connect('localhost', 'user', 'password');
if (!$dbcnx ) {
die('Connection error: ' . mysql_error());
}
/*Old Code
$dbcnx = @mysql_connect('localhost', 'user', 'password');
if (!$dbcnx) {
exit('<p>Unable to connect to the database server at this time.</p>');
}
if (!mysql_select_db('mydb')) {
exit('<p>Unable to locate the krabople database at this time.</p>');
}*/
Then again the problem might not be in your connection. So change the code down here..
//Error Detection Code
$result = mysql_query($sql);
if (!$result) {
die('Invalid query: ' . mysql_error());
}
/*
Old Code
if(@mysql_query($sql)) {
echo '<p>Your registration was successful!</p>';
} else {
echo '<p>There was an error while processing your registration: ' . mysql_error() . '</p>';
}
}*/
This should allow you to figure it out yourself.. If you still have a problem post a bit more about it along with the error code.