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ASP
Cookie Script |
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Cookies method is very
similar to Session method: the basic difference is that
with Cookies method the information is save in the
clients computer and not in the server, so it is more
suitable for sites with a lot of visitors. This method
implies sending information to the client and requesting
it whenever the information is needed. Additionally, we
will learn how to delete the information save in the
clients computer when it is not necessary anymore.
When the visitor gets to our asp file we may save
information related with him in his computer. The order
will be like this one:
<% response.Cookies ("whatever")="information" %>
When this line is executed, the visitor will have the
information in his computer, and whenever we need that
information, we may request it using this code:
<% =request.Cookies ("whatever") %>
or
<% variable1=request.Cookies ("whatever") %>
Let's try an example using Cookies method: let's
consider we have visitors checking our site several
times and we want to let them know how many times they
have accessed to our computer.
cookiesexample.asp
<% If Request.Cookies ("NumberVisits")="" Then %>
<% Response.Cookies ("NumberVisits")=1 %>
This is your first visit to this page. Welcome.
<% Else %>
<% VarNumberVisits=Request.Cookies ("NumberVisits")
VarNumberVisits=VarNumberVisits+1
Response.Cookies("NumberVisits")=VarNumberVisits %>
Welcome back to this page. You have visited this page <%
=VarNumberVisits %> times.
<BR>Check my great links
<BR>.....
<BR>.....
<% End If %>
Cookies method may be used to show visitors specific
information we have requested throw a form, as for
example a list of links related to a specific theme,
information to allow access to the content of a page or
to personalize the page (background color, frames or not
frames...), information to fill a form automatically,
etc. |
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