How many ways can we pass the variable through between the pages?

Passing variable between pages..

please answer to this question,

Given a line of text $string, how would you write a regular expression to strip all the HTML tags from it?

Hi Sheetal,

You can do it by three ways:

1. Put the variable into session in the first page, and get it back from session in the next page.
2. Put the variable into cookie in the first page, and get it back from the cookie in the next page.
3. Put the variable into a hidden form field, and get it back from the form in the next page.