You'll b better off visiting online websites. Free+Good! U may wanna try the following sites which i learnt from:
http://sg.php.net/manual/en/index.php
http://www.w3schools.com/php/
https://www.softwareprojects.com/
hmm...jus wondering, given that there'r many programming languages out there, that which is the best or most popular n most likely to outlast the rest.