Post Method

In the POST method of data submission the web browser sends the POST command (another HTTP command) to the server and includes the form's data in the body of that command. When you use the POST method in an HTML form, the web server sends the form's data to the standard input of the CGI program. In other words, a CG I program must read the standard input in order to accept data sent using the POST method.

The CONTENT LENGTH environment variable indicates the total number of bytes to be read. The MIME type of the input data is specified in the CONTENT TYPE environment variable.

Unless we specify a different encoding through the ENCTYPE attribute of the <FORM> tag, the CGI program receives the form's data in the application/x-www f orm urlen coded MIME type and the CONTENT TYPE environment variable type is set to application/x www form urlencoded. That means the information is URL encoded.

The web browser encodes the form's data identically whether you use the GET or the POST method of data submission.

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