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    qweqe qweqe Presentation Transcript

    • Introducing: Zend Framework John Coggeshall
    • Welcome
      • Today I’ll be introducing you to the Zend Framework
        • What it is
        • Why we’re doing it
        • How to use it
        • Where it’s going
        • How to be a part of it
    • Getting Started
      • 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 Framework isn’t …
        • A free-reign open source project
        • A religion
    • Goals of the Framework
      • 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, requiring as 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.
    • Why Yet another Framework?
      • Keep PHP competitive with other technologies
        • .NET, Java, etc.
      • Provide “clean” IP to enable commercial use
        • Real companies can’t 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
    • The Framework License
      • 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)
    • There’s no such thing as a free…
      • Why spend so much time and effort on something, just to give it away?
        • Yes, we’re 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
    • We eat our own dog food
      • 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 Developer’s Zone (devzone.zend.com) use the preview release of Framework as their foundation.
    • The grail: Extreme Simplicity
      • Many of PHP 5’s most exciting new technologies are really simple to use:
        • Simple XML
        • SOAP
        • Tidy
      • While the underlying technologies may be extremely complex, the end-user APIs are reduced to an extremely simple interface
    • Getting the Grail
      • To achieve the grail of extreme simplicity
        • “Simple things should be simple, complex things should be possible”
      • Use-at-will architecture
        • You shouldn’t 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
    • Zend Framework from 10,000 feet
    • Completely PHP-5 focused
      • 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
    • Preview Release
      • 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:
      Getting Zend Framework $ svn checkout http://framework.zend.com/svn/framework/trunk
    • Installing Zend Framework
      • Installing the framework is very easy, just modify your include_path to include the library/ directory
      • From php.ini:
      • From .htaccess
      …… include_path=“.:/usr/local/lib/php:/usr/local/lib/ZendFramework” …… …… php_value include_path “.:/usr/local/lib/php:/usr/local/lib/ZendFramework” ……
    • MVC Pattern
      • MVC, or M odel V iew C 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
    • Example Controller
      • Note: indexAction() is declared abstract in Zend_Controller_Action, and therefore must be defined in any Action/Page controller
    • Passing Parameters
      • 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(<key> [, <default value>]);
        • $this->_getAllParams();
    • Dealing with 404s
      • 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)
    • Chaining Controllers
      • Controllers can be chained together to either break business logic out into components, or to otherwise redirect the user
        • $this->_forward(<controller_name> [, <parameters>])
        • 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(<url>);
    • Final thoughts on MVC
      • Although the pattern dictates three individual class types, they are as conceptual as functional
      • For instance a “model” or “view” isn’t 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
    • Input Filtering
    • Zend_InputFilter
      • 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.)
    • Using Zend_InputFilter
      • 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 it’s references are destroyed when filtered
    • Zend_Mail
      • 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
    • Sending HTML mail is now really easy
    • Zend_Search
      • 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
    • Zend_Search Features
      • 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
      • Using Zend Search is very easy
      • The search engine also boasts a parser for google-like searching: zend php -java
    • Adding documents to the index
    • Cool things about Zend_Search
      • 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
    • Questions?