How to display information from forms in joomla in php script?

Question

PHP

It is necessary to send the information entered by the user from the form to the php script for further processing (for example, assigning a value from a field to a variable, this is essentially not important).
The $_POST method does not send data.

Answer 1

I practically did not contact Joomla, but after looking at the documentation I found this.
1. This is an option to get the entire $_POST like this:
2. Get the required field
$param = JRequest::getVar('название поля');