Hi,
you need to have a MapObj based on your MAP file. On your MapObj you can
call getLayerByName.
See the example here:
http://mapserver.gis.umn.edu/docs/reference/phpmapscript-class/referencemanual-all-pages
example of usage :
$map = ms_newmapobj("d:/msapps/gmap-ms40/htdocs/gmap75.map");
$layer = $map->getLayerByName('road');
Best regards,
Bart
DjwStone wrote:
I'm taking first faltering steps with PHP/MapScript so forgive if following
question is dumb.
A la classic MapServer tutorial example, I'm building an interactive map
form which allows pan/zoom/layer selection. It's the last of these that's
giving me difficulty.
The HTML defines a select list of layers:
<SELECT MULTIPLE NAME="layers[]" SIZE=3>
<!-- the list of layers to choose from -->
<OPTION VALUE="parish_labels"> Parish names</OPTION>
etc.,....
When the form is submitted, the PHP should tell MapServer which elements in
the list were selected. My code is:
function retrieve_select(){
for ($r=0; $r <= count($_POST['layers'])-1; $r++){
// echo $_POST['layers'][$r]."<BR>";
$my_layer=getLayerByName($_POST['layers'][$r]);
$i = $my_layer->set($my_layer->status, MS_ON);
}
}
However, PHP reports 'Call to undefined function getLayerByName()'. Since I
found the function in the PHP/MapScript Class Reference document, I'm
wondering if this is a deliberately misleading error message?!
Any help gratefully acknowledged...
Dave
--
View this message in context:
http://www.nabble.com/PHP-MapScript%3A-getLayerByName%28%29-t1562941.html#a4244464
Sent from the Mapserver - User forum at Nabble.com.
--
Bart van den Eijnden
OSGIS, Open Source GIS
http://www.osgis.nl
