WnMp - Wnmp (pronounced "W-n-m-p") is an open source development environment consisting of a control panel, Nginx, MariaDB, and PHP for Windows. Wnmp was created with a goal to be as simple as possible, while having a powerful Graphical User Interface.
Kodiak PHP - Kodiak PHP can run any PHP code directly (offline) on your iPad, no need for an internet connection.
XAMPP - XAMPP is a free and open-source cross-platform web server that is primarily used when locally developing web applications.
CodeLobster PHP Edition - CodeLobster - Free portable PHP IDE with support Drupal, Smarty, Twig, WordPress, Joomla, JQuery, CodeIgniter, HTML, CSS, JavaScript, AngularJS, CakePHP, Facebook, Laravel, Phalcon, Symfony, Yii
Portable Webserver - It's a portable server manager that you can go anywhere, anytime, in any computer and run your...
WritePHPOnline.Com - WritePHPOnline.Com is an online site that enables you to write code in PHP and view its output.