php & sql insert

I feel like I'm super close on this but can't quite crack it

index.php:

Code:

<form action="auth.php" method=POST>
E-Mail: <input type="text" name="email" /><br /> 
<input type=hidden name=mac value=<?php echo $id; ?> />
<input type=hidden name=ap value=<?php echo $ap; ?> />
<input type=hidden name=url value=<?php echo $url; ?> />
<input type=submit value="Log In" />

auth.php:

Code:

 require_once 'config.php.inc';
 $email = trim($_POST['email']);
 $mac = trim($_POST['mac']);
 $ap = trim($_POST['ap']);
 $url = trim($_POST['url']);
 $auth = auth_user($email,$table);
 echo $url;
 if($auth) {
 //Minutes to authorize, change to suit your needs
 $minutes = 10080;
 sendAuthorization($mac,$ap,$minutes,$url);
 }

config.inc:

Code:

$mysql_db variables, bla (defined db, host,user, pass,)
$table = "creds";
$mysql = mysqli_connect($mysql_host,$mysql_user,$mysql_pass,$mysql_db);
function auth_user($email, $table) {
$query = "INSERT into creds (email) VALUES ($email)";
mysqli_query($mysql,$query)
echo "true";
return true;
}

there's a bit more in there, but this is the relevant part. Basically, I want to take "email" from index.php
submit it to auth.php
which calls config.inc.php and then uses the function to write it into a sql database


the Mysql database is basically:

create table 'creds'
id int(6) autoincrement
email varchar(30) notnull

and that's it.

Looks like it should work.

Got any logfile output?

edit: Have you got config.inc.php and config.php.inc transposed on your site like you do in your post?

Also, no sem colon after "mysqli_query($mysql,$query)"