same effect as CGI mode=itemquerymap but with PHP/mapscript

[Rodrigo Martín LÓPEZ GREGORIO]

Hi List.

Normally I use mapserver as CGI, but now I need to move to PHP/mapscript. In
my actual applet I use the CGI mode=itemquerymap to show the selected
polygon on a layer with different color. So I pass the next values on the
CGI call:

mode=itemquerymap&qlayer=mylayer&qstring=someattribute='avalue'

This works greats through CGI. Now I want to get the same effect using PHP
Mapscript but I'm a little confused how to get it working. I know how to get
the string parameters in php, even split the qstring parameter using explode
but what I don't know is what must I do to get PHP Mapscript use the
QUERYMAP format (defined in my base mapfile) to show the selected polygon.

Can anyone give me a hint?

Thanks.

Rodrigo.
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