Introduction to Zend Framework

Zend Framework Introduction by Michelangelo van Dam

Who is Michelangelo van Dam ?

Freelance PHP consultant with over 7 years of enterprise level PHP development experience.

Started using Zend Framework in 2007 and contributes to this framework for Zend_Ldap.

web: http://www.in2it.be

blog: http://dragonbe.blogspot.com

e-mail: dragonbe [at] google mail

twitter: http://twitter.com/DragonBe

What is Zend Framework ?

a component based framework

use the whole framework

pick what you need, drop the rest

implementing the MVC-paradigm

simplicity and object oriented best practices

corporate friendly license (new BSD license)

a very tested agile code base

modify code by extending components

Zend Framework map

Tools to build ZF applications

IDE's

Zend Studio 6.0 (“neon”) (www.zend.com)

fully supported by Zend

integration of Zend Framework in IDE

Komodo IDE (www.activestate.com)

Text editors

vi(m)

textpad

notepad

A bit of theory... MVC

model

the model holds the business logic

view

creates the presentation layer

controller

defines actions to be executed

MVC in action

Setting up the virtualhost (Apache) <VirtualHost *:80> ServerName www.example.com ServerAlias example.com DocumentRoot /path/to/example.com/htdocs <Directory /path/to/example.com/htdocs> Options Indexes FollowSymlinks AllowOverride All Order allow,deny Allow from all DirectoryIndex index.php </Directory> SetEnv ENVPHP localhost ErrorLog /path/to/logs/example.com-error_log CustomLog /path/to/logs/example.com-access_log common </VirtualHost>

Directory structure app/ default/ <- the "default" application controllers/ <- here you define your controllers ErrorController.php IndexController.php models/ <- this is where your business logic is put views/ <- everything for presentations is put here helpers/ scripts/ index/ index.phtml error/ index.phtml library/ Zend/ <- this is the Zend Framework library htdocs/ <- this is where your bootstrap file is located images/ scripts/ styles/ .htaccess index.php

modify apache settings .htaccess RewriteEngine on RewriteRule !.(js|ico|gif|jpg|png|css)$ index.php

bootstrap file index.php /** * Setup controller */ $controller = Zend_Controller_Front::getInstance(); $controller ->setControllerDirectory( '../application/default/controllers' ); $controller ->throwExceptions( false ); // should be turned on in development time // run! $controller ->dispatch(); require_once 'Zend/Controller/Front.php' ; <?php /** * My new Zend Framework project * * @author Michelangelo van Dam (michelangelo@in2it.be) * @version $Id$ */ set_include_path( '.' . PATH_SEPARATOR . '../library' . PATH_SEPARATOR . '../application/default/models/' . PATH_SEPARATOR . get_include_path() );

view script index/index.phtml <?php /** * Default home page view * * @author Micehlangelo van Dam (michelangelo@in2it.be) * @version $Id$ */ echo '<?xml version="1.0" encoding="UTF-8" ?>' ; ?> <! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" > < html xmlns = "http://www.w3.org/1999/xhtml" > < head > < meta http-equiv = "Content-Type" content = "text/html; charset=UTF-8" /> < title > New Zend Framework Project </ title > </ head > < body > Hello, world! </ body > </ html >

controller IndexController.php <?php /** * IndexController - The default controller class * * @author Michelangelo van Dam (michelangelo@in2it.be) * @version $Id$ */ require_once 'Zend/Controller/Action.php' ; class IndexController extends Zend_Controller_Action { /** * The default action - show the home page */ public function indexAction() { // TODO Auto-generated IndexController::indexAction() action } }

that's it !

implementing Zend_Layout app/ default/ controllers/ models/ views/ helpers/ layouts/ layout.phtml <- here you define the site layout scripts/ index/ error/ library/ Zend/ htdocs/ images/ scripts/ styles/ .htaccess index.php

modifying bootstrap index.php /** * Setup controller */ $controller = Zend_Controller_Front::getInstance(); $controller ->setControllerDirectory( '../application/default/controllers' ); $controller ->throwExceptions( false ); // should be turned on in development time // We enable Zend_Layout Zend_Layout::startMvc(array( 'layoutPath' => '../app/views/layouts' )); // run! $controller ->dispatch(); require_once 'Zend/Controller/Front.php' ; <?php /** * My new Zend Framework project * * @author Michelangelo van Dam (michelangelo@in2it.be) * @version $Id$ */ set_include_path( '.' . PATH_SEPARATOR . '../library' . PATH_SEPARATOR . '../application/default/models/' . PATH_SEPARATOR . get_include_path() );

site layout with layout.phtml <?php echo '<?xml version="1.0" encoding="UTF-8" ?>' ; ?> <?php echo $this ->doctype( 'XHTML1_TRANSITIONAL' ); ?> < html xmlns = "http://www.w3.org/1999/xhtml" > < head > <?php echo $this ->headMeta()->appendHttpEquiv( 'Content-Type' , 'text/html; Charset=UTF-8' ); ?> <?php echo $this ->headTitle(); ?> </ head > < body > <?php echo $this ->layout()->content; ?> </ body > </ html >

modifying index/index.phtml Hello, world!

modifying IndexController.php <?php /** * IndexController - The default controller class * * @author Michelangelo van Dam (michelangelo@in2it.be) * @version $Id$ */ require_once 'Zend/Controller/Action.php' ; class IndexController extends Zend_Controller_Action { /** * The default action - show the home page */ public function indexAction() { $this ->headTitle( 'New Zend Framework Application' ); } }

Result is the same, but better

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