Electronic Books

67
??? The PHP script sends its response
as XML data not as a normal
Web page Everything PHP will
print will be part of this XML
??? The XML data being created is
really like the data in an HTML
page where there??™s one root element
and any number of nested
subelements For this example
the root element will be called
and there will be two
subelements There can be zero
or more elements called
and there will always be exactly
one element called In
comparison an HTML page has
a root element called two
subelements named and
and more subelements
within those
extra bits (cont.)
adding records via Ajax 83
The extra bits section at the
end of each chapter contains
tips and tricks that you might
like to know. The heading for
each group of tips matches
the section title. The page
number next to the heading
makes it easy to fi nd the section
to which the tips belong.
introduction xiii
required tools
This book covers the basics of Ajax but not of Web development. The assumption
is that you already have, and know how to use, certain tools and technologies.


Pages:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25