Add PHP course (#2828)

* A course added for PHP

- Add a link to PHP for Beginners (2023 Edition) [Free Course]

* Update content/roadmaps/101-backend/content/103-learn-a-language/103-php.md

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

content/roadmaps/101-backend/content/103-learn-a-language/103-php.md

@@ -6,5 +6,6 @@ PHP is a general purpose scripting language often used for making dynamic and in
 <BadgeLink colorScheme='blue' badgeText='Official Website' href='https://php.org/'>PHP Website</BadgeLink>
 <BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.w3schools.com/php/'>Learn PHP - W3Schools</BadgeLink>
 <BadgeLink colorScheme='yellow' badgeText='Read' href='https://phptherightway.com/'>PHP - The Right Way</BadgeLink>
+<BadgeLink badgeText='Watch' href='https://www.youtube.com/watch?v=U2lQWR6uIuo&list=PL3VM-unCzF8ipG50KDjnzhugceoSG3RTC'>PHP for Beginners</BadgeLink>
 <BadgeLink badgeText='Watch' href='https://www.youtube.com/watch?v=2eebptXfEvw'>PHP For Absolute Beginners</BadgeLink>
 <BadgeLink badgeText='Watch' href='https://www.youtube.com/watch?v=sVbEyFZKgqk&list=PLr3d3QYzkw2xabQRUpcZ_IBk9W50M9pe-'>Full PHP 8 Tutorial - Learn PHP The Right Way In 2022</BadgeLink>