Here is a list of PHP Scripts for contact form. They have multiple features include ajax, form builder, upload, responsive etc.
PHP Secure Contact and Newsletter Form is easy to install and also easy to manage with Admin panel feature.
Flora Forms is a set of simple easy to use Clean HTML5 CSS3 responsive forms, with common features for a website contact or order form.
Create any form you want using drag-and-drop functionality.
PHP contact and Newsletter Form can follow that communicate with you and you can manage them.
Easy AJAX Contact Form is a powerful framework that can create simple or advance/complex contact forms.
This class will help you to speed up the process of developing your applications and avoid the rewriting of your functions every time you start a new project.