Usefull websites for PHP developers

 http://www.devshed.com/c/b/PHP/

http://www.technabled.com/

http://www.coolajax.net/

http://demos.thatryan.com/joomla_tutorial/

http://net.tutsplus.com/

http://woork.blogspot.com/

http://thinkvitamin.com/

http://ajaxian.com/

http://stylegrind.com/

http://boxesandarrows.com/

http://cssglobe.com/

http://www.pixelgroovy.com/

http://www.mysqlformatdate.com/   MYSQL

http://scriptsrc.net/

http://fordinteractive.com/tools/emchart/

http://twitapi.com/explore/

http://spoon.net/browsers/

http://www.planetsourcecode.com/

http://www.phpform.org/

http://www.phpform.org/

http://www.smashingmagazine.com/

http://php-mysql-guide.blogspot.com/

http://www.phpoops.com/

http://faruq1256.blogspot.com

http://www.devnetwork.net/

http://lab.artlung.com/ 

http://www.scriptcopy.com/


http://nscraps.com/PHP

what is class and object?

In object-oriented programming, a class is a construct that is used as a blueprint (or template) to create objects of that class. This blueprint describes the state and behavior that the objects of the class all share. An object of a given class is called an instance of the class. The class that contains (and was used to create) that instance can be considered as the type of that object, e.g. an object instance of the "Fruit" class would be of the type "Fruit".

In computer science, an object is any entity that can be manipulated by the commands of a programming language, such as a value, variable, function, or data structure. (With the later introduction of object oriented programming the same word, "object", refers to a particular instance of a class)