<slide title="Forms">
<blurb title="Handling form variables">
Submitted variables are in arrays: %$_GET%, %$_POST%, %$_COOKIE%, %$_REQUEST%
 </blurb>
  <example fontsize="1.5em" result="1"><![CDATA[<?php
if (isset($_POST['submit'])) {
    print 'Hello, '.$_POST['name'];
} else {
    print<<<_HTML_
<form method="POST" action="$_SERVER[PHP_SELF]">
    Your name: <input type="text" name="name"> <br>
<input type="submit" name="submit">
</form>
_HTML_;
} ?>]]></example>
</slide>
