Added PHP course (#7558)

* Added PHP course

* Update courses/free-courses-en.md

Co-authored-by: Eric Hellman <eric@hellman.net>

Co-authored-by: Eric Hellman <eric@hellman.net>

courses/free-courses-en.md

@@ -868,6 +868,7 @@
 
 * [Laravel 5.8 Tutorial From Scratch](https://www.youtube.com/playlist?list=PLpzy7FIRqpGD0kxI48v8QEVVZd744Phi4) - Coder's Tape (2019)
 * [Learn how to program: PHP](https://www.learnhowtoprogram.com/php) - Epicodus Inc.
+* [Learn PHP The Right Way - Full PHP Tutorial for Beginners & Advanced](https://youtube.com/playlist?list=PLr3d3QYzkw2xabQRUpcZ_IBk9W50M9pe-) - Program With Gio
 * [Learn Top Ten Frameworks In PHP By Building Projects](https://www.eduonix.com/courses/Web-Development/learn-top-ten-frameworks-in-php-by-building-projects) - Eduonix Learning Solutions *(account or email address required)*
 * [Object-Oriented PHP For Beginners](https://www.youtube.com/playlist?list=PLFHz2csJcgk-7hgKrjUa_IP5YCLE4vJhV) - Dary Nazar (Code with Dary)
 * [Object Oriented PHP Tutorial](https://www.youtube.com/playlist?list=PL4cUxeGkcC9hNpT-yVAYxNWOmxjxL51Hy) - Shaun Pelling (The Net Ninja)