<input type="checkbox" name="gender" value="1" />Male <br /> <input type="checkbox" name="gender" value="2" />Female <br />

Question

what is the use of gender and value attributes

Answer 1

gender is not the attribute, there NAME is the attribute and GENDER its value, then value is used to define the value sended to a post or get request on a form when submitted

Answer 2

what is post?

Answer 3

when you submit a form it can be with get or post method, get is when you send the form information in the url and post does not show the data in url