DTD Attribute Types - ENTITIES

The attribute type of ENTITIES allows you to refer to multiple entity names, separated by a space.

Syntax:

Example:

Valid XML - The following XML document would be valid, as it conforms to the above DTD:

Invalid XML - The following XML document would be invalid. This is because in the first element, a comma is being used to separate the two values of the photo attribute (a space should be separating the two values):