Input field of Name in Forms [duplicate]

1. Do input names need to be unique?
2. Can multiple form inputs have the same name?
3. Can a form have a name attribute?
4. How do you keep data in an input after a form is submitted?

Do input names need to be unique?

The name attribute assigns a name to the input element. Unlike id, the name does not have to be unique across the page. This attribute is used as reference for JavaScript and for form data submission.

Can multiple form inputs have the same name?

It is valid. It will create no confusion for the server side language (even PHP, with its conventions for naming fields that share a name, will consistently and predictably handle multiple inputs which don't use that convention).

Can a form have a name attribute?

The name attribute specifies the name of a form. The name attribute is used to reference elements in a JavaScript, or to reference form data after a form is submitted.

How do you keep data in an input after a form is submitted?

PHP - Keep The Values in The Form

To show the values in the input fields after the user hits the submit button, we add a little PHP script inside the value attribute of the following input fields: name, email, and website. In the comment textarea field, we put the script between the <textarea> and </textarea> tags.