Dynamic PHP Menu

<?php
function getfileinfo($thedirectory) {
$files = scandir($thedirectory);
 
$namelisting = str_replace(".txt","",$files);  
      //THIS TAKES OFF THE FILENAME EXTENSION FOR A CLEANER MENU. THIS IS FOR .txt files
unset($namelisting[0], $namelisting[1]); 
    //THIS REMOVES THOSE 1ST TWO PESKY DOTS THAT SHOW UP " . " & " .. " 
return($namelisting);
?>
 
//THIS IS THE DYNAMIC MENU  
<ul>
<li><a href="breakfast.php">Breakfast</a>
	<?php
	if ($page == "breakfast") {
	   echo '<ul>';
	   $breakfastitems = getfileinfo("content/breakfast/");
		foreach ($breakfastitems as $value) {
			echo '<li><a href="'.$_SERVER['PHP_SELF'].'?food='.$value.'">'.$value.'</a></li>';
		}
	   echo '</ul>';
	}
	echo '</li>';
	?>
</li>
 
<li><a href="lunch.php">Lunch</a>
	<?php
	if ($page == "lunch") {
	   echo '<ul>';
	   $lunchitems = getfileinfo("content/lunch/");
		foreach ($lunchitems as $value) {
			echo '<li><a href="'.$_SERVER['PHP_SELF'].'?food='.$value.'">'.$value.'</a></li>';
		}
	   echo '</ul>';
	}
	?>
</li>
</ul>
 
//THIS GOES INTO THE PAGE 
//ASSUMING THE .TXT FILES ARE IN /CONTENT dir
<?php
if (isset($_GET['food'])) {
 
//ADD THE EXTENSION BACK ON
 
$pagecontent = "content/" . $page . "/" . $_GET['food'] . ".txt";
 
include($pagecontent);
 
} else {
echo 'I like to eat breakfast.';
}
?>