GetPropertyValue Method
Returns the value of the specified package property.
Object Oriented Interface
public function doGetPropertyValue($propname, $propnamespace);
Procedural Interface
ipworkszip_officedoc_do_getpropertyvalue($res, $propname, $propnamespace);
Remarks
Looks up a package property named PropName in namespace PropNamespace in the core and app properties tables and returns it's value, if found.
If the property doesn't exists, an empty string is returned.
For custom properties. use an empty string ("") as the value of the PropNamespace parameter.