The Extract Form Parameter action can be configured using the following properties:

Form Parameter Name

Specifies the name of the form parameter.

Converters

Data converters to apply to the extracted value before storing it in the variable.

Variable

The variable in which to store the resulting value.

Encoding Used in URL

Specifies the character encoding used in the URL. If the extracted value contains incorrect characters, change this encoding to the encoding used in the page that contains the URL, or the page that contains the form from which the URL was created. The most commonly used encodings in form URLs are Unicode (UTF-8) and Latin-1 (ISO-8859-1).

Example

Consider this found tag:

<a href="http://www.abc.com/search?author=Johnson">
  Search
</a>

If Form Parameter Name is set to "author", the value "Johnson" will be extracted and stored in the selected variable.