For non-coders who, like me, tend to get very lost with most technical tutorials, I found a couple resources that explain php for either absolute beginners, or technically challenged :P
This slide show at Udemy is free, and a great fast introduction and a foundation for learning later things
http://www.udemy.com/php-basics/
This site is geared for kids learning php, html, css, and mysql, so if a kid can get it, I figured I could too
http://www.phpforkids.com/tutorials.php
Object Oriented PHP for Absolute Beginners:
http://www.elated.com/articles/objec...ute-beginners/
Also this (because sometimes re-reading from a different source can clear confusion):
http://www.onlywebpro.com/2012/03/30...ute-beginners/
Video tutorials on OOP PHP for beginners:
http://www.killerphp.com/tutorials/object-oriented-php/
Another beginner site, but goes into more depth than the two above, might be a good next step
http://www.coursehero.com/courses/5/Intro-To-PHP/#intro
Codeacademy might have some good hands on tutorials for those who like to learn by doing
http://www.codeacademy.com/
Once you understand the basics, it will be important to understand Object Oriented Programming in PHP in order to get around in Mysidia. This link will help with that:
http://www.tutorialspoint.com/php/ph...t_oriented.htm
Object Oriented PHP for Beginners:
http://www.killerphp.com/tutorials/object-oriented-php/
I'll add more if I find them, but I thought these would help new pet site owners who look and the code and don't know where to begin. You have to crawl before you can walk, so might as well find some non-rocky ground to start on.