Multiple filtering

Tue Jan 10 10:12:53 EST 2006

Hi i have a question about setting a filter in a php script, i am able to
set the filter to display a single state but how can i display multiple
states at the same time.

This is how the php script looks like

<?php

dl('php_mapscript_44.dll');

$map_path="C:\ms4w\Apache\htdocs\mapserverdata\map_files\\";

$map = ms_newMapObj($map_path."states.map");
$map->setExtent("-110", "28.5", "-95", "61.5");
$layername = $map->getLayerByName("states");
$layername->setFilter('ND');

$image=$map->draw();
$image_url=$image->saveWebImage();

?>
<HTML>
<HEAD>
<TITLE>Example 1: Displaying a map</TITLE>
</HEAD>
<BODY>
 <IMG SRC=<?php echo $image_url; ?> >
</BODY>
</HTML>

Thanks for your help .......