I knowed that exists PHP Classes by a classmate, when a find a class or code examples todo one task ;-)
PHP Classes its a great site, at long of my professional career, i learned very mutch about PHP in PHP Classes, and of course it opens many ports ;-)
In these years i had contributed with 4 php classes, and if in my professional career continues working with PHP, i will have contribute more ... !
Well, 5 months ago, a started programming basicaly in Pl Sql !
May be one day, PlSql Classes be a new branch, and i can continue contribute with this ;-)