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Tips and Tutorials
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This tutorial explains from
Step-by-step tutorial to
CAPTCHA has become a popular
CAPTCHA is a simple test to
the very beginning how to
understand the
means of securing forms
determine if a user is a
use AJAX in web
XMLHttpRequest object and
against automated
computer or a human. It is
applications. It is assumed
how to use it from
submission, by requiring
used to prevent spam abuse
you have a knowledge of
JavaScript. Examples with
users to enter a string
on the websites. So if you
Javascript (with a little
text, XML and JSON files.
displayed in an
use CAPTCHA on your web site
DOM) as well as a server
The tutorial is completed by
automatically generated
forms, this can help in
side scripting language,
demo pages that you can use
image.
This implementation
stopping some bots and
although you should pick it
as templates for you own
uses Ajax to conveniently
making life harder for other
up easily.
website. Plus a specific
combine CAPTCHA into normal
bots in accessing or using
JSON tutorial a very simple
pre-submission form
your forms. The goal of this
to use format.
verification. You'll need
tutorial is to demonstrate
PHP to be installed with the
how to make your own simple
GD image library (most PHP
CAPTCHA protection using PHP
implementations will have
and AJAX technologies.
this as standard).
Date: Dec, 29 2006 Date: Dec, 19 2006 Date: Dec, 20 2006 Date: Nov, 30 2006 |
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A simple tutorial to add a
AJAX allows you to make a
Thanks to Ajax, we can
This tutorial is about
personalized ajax live
call to an http server
provide real-time feedback
edit-in-place system which
search onto your site!
(typically an RSS feed or a
to the user using
is used for quickly amending
webpage), get it’s content
server-side validation
titles and descriptions on
and load them into your
scripts and eliminate the
photographs.
existing page without having
need for redundant
to refresh the whole page.
validation functions without
This means that services
giving up a solution that
like email don’t have to
degrades gracefully when
reload the whole page
JavaScript is disabled.
everytime you click a
message, saving on bandwidth
(loading the header/footer
all over again) and making
things more efficient.
Date: Nov, 10 2006 Date: Jan, 02 2007 Date: Nov, 10 2006 Date: Nov, 10 2006 |
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