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Understanding CGI and Web Interaction Through HTML Form Example

This overview explores the application of CGI in web development, using a sample HTML form to showcase how user input can be processed. The form allows users to enter words, which are then sorted using a specified CGI script. It emphasizes the simplicity of crafting basic HTML and the complexities that can arise when using software-generated content. By engaging with hands-on experiences, users can demystify HTML and enhance their understanding of web technologies. An introduction to useful resources for learning HTML is also provided.

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Understanding CGI and Web Interaction Through HTML Form Example

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  1. Web overview 1.0

  2. The major camp • CGI and the Web

  3. Web overview • For some of these graphics, thanks Bob Elson & John Faughnan at... http://www.nmsr.labmed.umn.edu/~relson/talks/aafp97/wwwinpractice/controls/slidelist.html

  4. Typical CGI form

  5. Forms under the hood

  6. <head><TITLE> 458 Sample Application </TITLE></head> <BODY> <H1> This is the C drive Sorting words </H1> <!-- You might want to play with branch1, etc.--> <FORM method="post" action="http://localhost/cgi-win/http2lsp.exe?((command+lisp00)(dan+hello)n)"> Enter some words and I'll sort them for you <p> <INPUT TYPE="text" NAME="word1" size=20 value="red"> <-- secret bonus word! <br> <INPUT TYPE="text" NAME="word2" size=20 value="blue"><br> <INPUT TYPE="text" NAME="word3" size=20 value="green"><br> <INPUT TYPE="text" NAME="word4" size=20 value="gold"><br> <INPUT TYPE="hidden" NAME="lisp00-state" value=":sent-initial-input"><P> <INPUT TYPE="submit" VALUE="Submit Words"> </FORM> </BODY>

  7. HTML • No mystery. Find one of several thousand sites that explain how to use it. NCSA at U of I is a good one. • HTML only gets complex when it is created by software -- and this is then artificially complex. • Write some basic HTML yourself to demystify it. Use an editor (such as MS Word) for more extensive documents.

  8. Growth of the Web

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