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1. Introducing: Zend Framework John Coggeshall

Today Ill be introducing you to the Zend Framework

What it is

Why were doing it

How to use it

Where its going

How to be a part of it

Zend Framework is..

A modular collection of PHP classes based on PHP 5 to simplify common tasks

A starting point for your applications

A demonstration of PHP 5 best practices

A smaller component of the PHP Collaboration Project

Zend Frameworkisnt

A free-reign open source project

A religion

Zend Framework strives to be fundamentally.

An industry-leading framework for PHP application development

A partnership between many companies already experienced in PHP Framework development

Zend Framework strives to be technically

A source of high-quality, PHP 5 / E_STRICT compatible application components

Completely PHP 5 powered,requiringas few external PHP extensions as necessary

A minimal object hierarchy to achieve the necessary goals

Modular design allowing developers to use the framework at will, as they see fit.

Keep PHP competitive with other technologies

.NET, Java, etc.

Provide clean IP to enable commercial use

Real companies cant just borrow code from the Internet without clear licensing

Extreme Simplicity: It may not be simple technically, but using it should be.

Take full advantage of PHP 5

Zend Framework is licensed using a PHP/BSD style license

Anyone can use it, for anything, no strings attached period.

Along with the license of the framework itself, contributors must sign a Contributor License Agreement (CLA)

Why spend so much time and effort on something, just to give it away?

Yes, were still interested in making money

For the continued success of PHP it must be a collaboration beyond OSS hackers

Through the PHP Collaboration project, and projects like Zend Framework, we can leverage the knowledge of some of the best in the industry in the benefit of PHP as a whole

As you might expect, Zend benefits with PHP

Zend Framework is more than unit-tested, it is used in real-life production environments

Gives us the ability to test performance, ease of use, etc. in a practical environment

Zend and its partners are already using the preview release of the Framework to speed development of their applications

Both the Framework homepage (framework.zend.com) and our new Developers Zone (devzone.zend.com) use the preview release of Framework as their foundation.

Many of PHP 5s most exciting new technologies arereally simpleto use:

Simple XML

While the underlying technologies may be extremely complex, the end-user APIs are reduced to an extremely simple interface

To achieve the grail of extreme simplicity

Simple things should be simple, complex things should be possible

Use-at-will architecture

You shouldnt be forced into buying the whole pizza just for a slice

Use individual components (controller/model) without being forced to use everything (your own template/view)

Configuration-less

The framework should be plug-and-go, no configuration files necessary

Requires PHP 5.0.4 or later for near future

Takes full advantage of the PHP exception model

Constants are all at the class-level

No functions in global namespace

ZE2 / SPL technologies fully utilized where it makes sense

Black magic __magic() functions used very sparsely

PR 1.2 is the latest preview release of the Framework including many immediately useful tools such as:

A basic MVC framework for application design

A PDO-based database layer

Feed (RSS, Atom) ingestion and manipulation

An HTTP client

Input data filtering

Json support for AJAX

PDF generation and manipulation

RPC / Web service support

And more!

You can either get the framework preview release or check out the latest repository version

Preview Release:http://framework.zend.com/

Repository:

Installing the framework isveryeasy, just modify your include_path to include the library/ directory

From php.ini:

From .htaccess

MVC, orM odelV iewC ontroller pattern is a powerful technique for developing user interfaces

Originally was conceived for client-side GUI applications and adopted to the web

Zend Framework provides a simplistic MVC model

Note: indexAction() is declared abstract in Zend_Controller_Action, and therefore must be defined in any Action/Page controller

Beyond $_GET/$_POST you can also pass parameters to a specific controller action by appending them to the URL:

http://localhost/foo/dosomething/param1/value1/param2/value2

Parameters can be accessed from within the action by name

$this->_getParam( [, ]);

$this->_getAllParams();

404 errors are no longer the responsibility of Apache per-se, and are more likely to result in a Class not found / Method not found exception

To deal with these Zend Framework provides two methods

In the event of a controller not found, the IndexController::noRoute() method will be called instead

In the event a controller action is not defined, it is the responsibility of the controller to implement safeguards (i.e. __call() which traps bad action calls)

Controllers can be chained together to either break business logic out into components, or to otherwise redirect the user

$this->_forward( [, ])

Parameters are a series of key/value pairs

Controller Chaining does not occur until the current action is complete, to immediately forward you must return from the current action after calling _forward()

Forwarding does not cause a refresh on the client, to physically refresh the browser

$this->_redirect();

Although the pattern dictates three individual class types, they are as conceptual as functional

For instance a model or view isnt absolutely necessary to gain most of the benefit of MVC

You can always perform queries from a controller

You can always print output from a controller

Although not necessary, they are never the less recommended

Security is a primary concern in Zend Framework

As such, we provide facilities to clean and manage untrusted data in your applications via Zend_InputFilter and Zend_Filter

Provides a number of methods for filtering data against many common data types (digits, alphanumeric, alpha, phone, etc.)

With Input Filter you can both test data types and retrieve filtered data easily

Note, by default the source of the data and all of its references are destroyed when filtered

Simplifies building and sending e-mail

Supports MIME types and multipart e-mail

Supports multiple transports and persistent connections automatically

Supports large file attachments via the streams API improving performance

PHP 5 implementation of the popular Lucene search engine from the Java world.

Simplified API

Requires no special PHP extensions

Fully compatible with the binary index format of Java Lucene 1.4 and above

Ranked Searching

Best results always first

Many Query types: phrase, wildcard, proximity

Search by field (Author, title, body, etc.)

Robust, and simple API

One-method intelligent searches against indexes, or complex OO queries if desired

Index multiple document types, with different field requirements

Using Zend Search is very easy

The search engine also boasts a parser for google-like searching: zend php -java

The Lucene search engine allows you to index multiple document types in a single index, each with different index fields

Index Individual documents with different searchable criterion

I.e. Index code samples by functions used, while articles by title, author, and keywords in the same index

Because it is 100% compatible with Lucene 1.4+, it is compatible with all pre-created index files

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