Saying "Hello"
<? if (array_key_exists('my_name',$_POST)) { print "Hello, ". $_POST['my_name']; } else { print<<<_HTML_ <form method="post" action="$_SERVER[PHP_SELF]"> Your name: <input type="text" name="my_name"> <br/> <input type="submit" value="Say Hello"> </form> _HTML_; } ?>