php-test5.php:	 
echo ('<form action="search.php" method="post">
       <input name="search" type="text" id="search">
       <input type="hidden" name="search" value="'.((isset($_POST['search']))?($_POST['search']):('')).'">
	&nbsp;
       <input type="submit" value="Zoeken"></form>');

search.php:
$search = $_GET["search"];