Another optional parameter is provided, that you may need in some environments, as described in
the following table.
Parameter
Value
Description
XMLEscaping
"Single", the default, or "Double"
XMLEscaping specifies whether responses are XML-encoded in a single
pass or a double pass. By default, XMLEscaping is "Single,"
and Product Advertising API responses are encoded only once in XML. For example, if the response data
includes an ampersand character (&), the character is returned in its regular XML
encoding (&). If XMLEscaping is "Double," the same
ampersand character is XML-encoded twice (&). The Double value for
XMLEscaping is useful in some clients, such as PHP, that do not
decode text within XML elements.