INSERT INTO query not working? : <p>HTML code:</p>

<pre><code>&lt;form action="create.php" method="post"&gt;
Username: &lt;input type="text" name="username"&gt;&lt;br&gt;
Password: &lt;input type="text" name="password"&gt;&lt;br&gt;
&lt;input type="submit" value="CREATE ACCOUNT"&gt;
&lt;/form&gt;
</code></pre>

<p>PHP code (create.php):</p>

<pre><code>&lt;?php


require_once 'studentdb.php';
$db_server = mysql_connect($host,$username,$password);
if (!$db_server) die("Unable to connect to MySQL: " . mysql_error());
mysql_select_db($dbname)
or die("Unable to select database: " . mysql_error());
$query = "INSERT INTO credentials (Username,Password) VALUES(".$_POST['username'].",".$_POST['password'].")"
$make = mysql_query($db_server,$query);
?&gt;
</code></pre>

<p>In the PHP here, studentdb.php has all the necessary information to log into the database. </p>

<p>I don't get any errors, but the table just isn't updating at all. </p>
