[Chameleon] XMLObject example

[Kralidis,Tom [Burlington]]

Hi,

We are trying to add some extra functionality to our cwc2 instance to
handle the extra goodies which are part of the WMC 1.1.0 specification
(specifically scale denominations).

In htdocs/common/xml_utils/XMLObject.php, we tried replicating the
example given in the class, i.e.:

 * Sample XML document:
 * <Employees version="1.0">
 *   <Employee Id="1">
 *     <Name>John</Name>
 *     <Salary Type="Annualy">20K</Salary>
 *   </Employee>
 *   <Employee Id="2">
 *     <Name>Ren</Name>
 *     <Salary Type="Weekly">2K</Salary>
 *   </Employee>
 * </MyRoot>
 *
 * Sample PHP code:
 *
 * $oXMLObj = new XMLObject( $szXMLDoc );
 *
 * $oEmployees = $oXMLObj[0];
 *
 * if ($oEmployees->version >= "1.0")
 * {
 *   foreach($Employees->children as $oEmployee)
 *   {
 *     echo $oEmployee->Id." ";
 *     echo "Name: ".$oEmployee->getNextChild("Name")->value."\n";
 *     $oSalary = $oEmployee->getNextChild("Salary");
 *     echo "Paid: ".$oSalary->value."(";
 *     echo $oSalary->Type.")";
 *   }
 * }
 * else
 *   echo "Wrong document version";
 *
 */

...but run into the following problem:

Fatal error: Cannot use object of type XMLObject as array in
/home/tkralidi/dev-php/mm.php on line 7

Our basic plan of attack will be to:

- Loop over WMC once again after cwc2.php does so with an XML parser
- fetch Layers with scale denominations
- apply scale settings to layer object in mapscript

Comments and advice would be appreciated.  We are trying XMLObject.php
because we are having a tough time using some of the other PHP XML
tools.

Thanks

..Tom

=========================
Tom Kralidis
Senior Systems Scientist
Environment Canada
Tel: +01-905-336-4409
http://www.ec.gc.ca/