If than statement (based of a subfolder)

[danscreations]

I'm writing a simple gallery script which generates the navigation based off of the folder structure (to some degree). There are a series of folders and sub folders which generate each dropdown. In the dropdown for the chassis_folder there will either be several sub folders of chassis or there will be a single "ALL" folder. Not sure how to add/re-arrange my coding so that the script opens the $chassic_folder looks for the "ALL" folder and if it exsist set $chassis to equal "ALL" and if it doesn't exsist display each $display_chassis.

 

Live script: http://www.ccwheel.com/dan/gallery.php

 

$chassis_folder = 'gallery/'.$make.'/'.$model.'/';

$open_chassis = opendir($chassis_folder);

if(empty($make)){

} else {

if(empty($model)){

} else {

echo '<form method="POST" action="'.$_SERVER['PHP_SELF'].'" name="gallery_chassis_select">';

echo '<select name="chassis" onchange="document.gallery_chassis_select.submit()">';

echo '<option>Select Chassis</option>';

while($display_chassis = readdir($open_chassis)){

  if(is_dir($display_chassis)){

  } else {

$chassis_files[] = $display_chassis;

  }

}

 

sort ($chassis_files);

foreach ($chassis_files as $chassis_data){

echo '<option value="';

echo $chassis_data;

echo '" ';

if ($chassis_data == $chassis){

echo 'selected';

}

echo '>';

echo $chassis_data;

echo '</option>';

}

 

echo '</select>';

echo '<input type="hidden" name="make" value="';

echo $make;

echo '">';

echo '<input type="hidden" name="model" value="';

echo $model;

echo '">';

echo '</form>';

echo '</td>';

echo '<td>';

}

}

closedir($chassis_folder);