Using the URL to Pass Parameters
In a static Web site, links are used to navigate from one page to another. In a
dynamic site, links can have an additional function: passing parameters to an
application server so that it can determine the dynamic content on the linked
page. The added parameters are known as a query string and follow the standard
URL after a question mark, like this:
dvd_details.asp?movie=Serenity
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IN THIS CHAPTER
Forwarding parameters
via a URL
Automating Application
Object production
Getting values from a form
Dreamweaver Technique:
Building a Search Page
Making form elements dynamic
Administering data sources with
Web applications
Dreamweaver Technique:
Creating the Results Page
Displaying variables
Authenticating site visitors
Crafting Multiple-Page
Applications
Every parameter is composed of a name/value pair separated by an equals sign. If more than one parameter
is sent, each pair is separated by an ampersand, as in the following example:
dvd_details.asp?movie=Serenity&genre=scifi
Unlike in HTML or other languages, quotation marks are not used to set off the values. Quotation marks
and other non-alphanumeric characters including spaces, single quotes, and tildes must be translated into
encoded characters so that the server interprets them correctly.
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