How do I create a CGI form?

How do I create a CGI form?

HTML tags create the visual representation of the form, while the CGI program decodes (or processes) the information contained within the form….Quick Reference to Form Tags.

Form Tag	Description
	Start the form

How CGI script decode the form data?

4.3. Decoding Form Input

• In order to access the information contained within the form, we must decode the data that is sent to us.
• A form sends its parameters as the body of a POST request, or as the query string of a GET request.
• We then loop over each of the name-value pairs and spit them into $name and $value.

How do you send data to CGI script?

Passing Data to a CGI Script

1. Different fields (e.g. name value pairs are separated by a ampersand (&).
2. Name/value pair assignments are denoted by an equals sign (=).
3. Blank spaces must be denoted by a plus sign +.
4. Some special characters will be replaced by a percent sign (2 digit hexadecimal (ASCII Value) code.

What is CGI in URL?

The Common Gateway Interface (CGI) is a method of allowing a hyperlink to refer to a program rather than a static web page.

What is CGI script in HTML?

CGI is a standard method used to generate dynamic content on web pages. CGI stands for Common Gateway Interface and provides an interface between the HTTP server and programs generating web content. These programs are better known as CGI scripts.

Is CGI a code?

In computing, Common Gateway Interface (CGI) is an interface specification that enables web servers to execute an external program, typically to process user requests. Such programs are often written in a scripting language and are commonly referred to as CGI scripts, but they may include compiled programs.

What is a CGI form used for?

Chapter 4. Forms and CGI HTML forms are the user interface that provides input to your CGI scripts. They are primarily used for two purposes: collecting data and accepting commands. Examples of data you collect may include registration information, payment information, and online surveys.

How do I create a CGI script for a form?

You create the form on your HTML page, and in the HTML tags for the form you specify the name of the CGI script to call when the user clicks the Submit button on the form. The values that the user enters into the form are packaged up and sent to the script, which can then use them in any way it likes.

How do I get the data from a CGI object?

The CGI object contains a lot of information. Some of this may be useful to your script, but what you want most is to get the results that were submitted in the web form (as shown earlier). In the example web form above, the data can be found in the QUERY-STRING field of the CGI object. You can easily revise the above script to show it:

What is the best way to send form submissions to CGI?

A better approach for larger form submissions is the HTTP POST request method. This method directs the data to the standard input port of the CGI script, allowing your CGI script to read it directly. The format of the data sent with the POST method is the same as that sent with the GET method.