I am new to zend frame work and I want to know innner functionality step by step. Please try to help me
Once you get used to standard MVC and some of the specifics of ZF-bootstrapping (Zend_Application, Application Resources, Controller Plugins, etc), the request life-cycle is actually pretty straightforward, though it may seem like black-magic, at first. At least, it sure did to me, especially bootstrapping resources and registering paths for helpers; scripts; custom elements, filters, validators, scripts, etc. ;-)
I think this Zend DevZone article explains the life-cycle pretty well, though it is focused more on plugins and doesn't really address resource bootstrapping as much as I would like. Referenced in that article is a very clean, but a little bit scary, chart of the request life-cycle.
This slideshare presentation discusses the life-cycle, as well.
Great, oft recommended places to start are as follows:
The Zend Framework Quick Start Guide
Rob Allen's Zend Framework Tutorial
Rob Allen's guide will take you through building a sample application, where you will learn key concepts and should then be ready to start your own project.
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