What are the supports?

Question

PHP

Hello.
What are the engines (free preferably) for the site using?
Something similar to

It is desirable that there are functions:
1. A template for answering from the technical support itself (that is, "Hello" is already entered in the answer field)
2. Ban list (optional)
3. Writing questions to the database ( not creating a file on the site for each question)
4. Ability to set statuses for questions (Accepted, unconfirmed)
5. Ability to attach images to questions
6. So that support is open to all people. So that everyone can answer
I will be glad for any help, even if there are no functions

Answer 1

osticket.com

Answer 2

kayako