adding $_POST in a value='' field
<p>I'm continuing to play around with PHP, and what I'd like to do is to pass variables from one form to another. </p>

<p>However, I can't manage to get an input field to work! I think I'm putting in the $_POST incorrectly. Help fixing this greatly appreciated</p>

<p>What's wrong with the code below? </p>

<pre><code>echo "&lt;input type='text' name='amount' value='$_POST['amount']' /&gt;";
</code></pre>
