Zend Framework provides tools for creating PHP web applications. The zf script is used to generate a project skeleton and configure resources. The Zend_Application loads configuration from application.ini, initializes the bootstrap class, and runs the application. The bootstrap class initializes custom resources. Common resources like the front controller, database, and view are initialized through Zend_Application_Resource classes, which get configuration options from application.ini. This allows flexible configuration and initialization of an MVC application in Zend Framework.

1. Head First Zend Framework
Part 1 - Project & Application
Jace Ju

2. Install
 Get Zend Framework from svn repository.
# cd /path/to/library/php
# svn co http://framework.zend.com/svn/framework/standard/tags/release-
1.10.x/library/Zend
(add ZF_HOME = /path/to/ZF, example: /usr/local/ZF)
# cd $ZF_HOME
# svn co http://framework.zend.com/svn/framework/standard/tags/release-1.10.x/bin
# cd bin
# ln –s $ZF_HOME/bin/zf.sh $ZF_HOME/bin/zf

3. Setup
 Create config of zf script
# zf create config
Successfully written Zend Tool config.
It is located at: /usr/local/ZF/.zf.ini
(Bug in ZF 1.10.6.)
# vi /usr/local/ZF/.zf.ini
php.includepath change to php.include_path
# zf show config
User Configuration: /usr/local/ZF/.zf.ini
`-- php
`-- include_path: /usr/local/lib/php:/var/lib/php:.

4. What is zf script
 Help info
# zf ?
Usage:
zf [--global-opts] action-name [--action-opts] provider-name [--provider-opts]
[provider parameters ...]
Note: You may use "?" in any place of the above usage string to ask for more
specific help information.
Example: "zf ? version" will list all available actions for the version provider.
... (ignore) ...
DbTable
zf create db-table name actual-table-name module force-overwrite
Note: There are specialties, use zf create db-table.? to get specific help on
them.
ProjectProvider
zf create project-provider name actions

5. Create Project
 Build a project skeleton
# cd /path/to/wwwroot
# zf create project zf_test
Creating project at /path/to/wwwroot/zf_test
Note: This command created a web project, for more information setting up your VHOST,
please see docs/README
# cd /path/to/wwwroot/zf_test
# zf show project.info
Working with project located at: /path/to/wwwroot/zf_test
# zf show profile
ProjectDirectory
ProjectProfileFile
... (ignore) ...
TestsDirectory
TestPHPUnitConfigFile
TestApplicationDirectory
TestApplicationBootstrapFile
TestLibraryDirectory
TestLibraryBootstrapFile

6. Setup Project
 Setup VirtualHost in Apache config file
<VirtualHost *:80>
DocumentRoot "/path/to/wwwroot/zf_test/public"
ServerName zf_test
# This should be omitted in the production environment
SetEnv APPLICATION_ENV development
<Directory "/path/to/wwwroot/zf_test/public">
Options Indexes MultiViews FollowSymLinks
AllowOverride All
Order allow,deny
Allow from all
</Directory>
</VirtualHost>
 http://zf_test/

7. Create Protable Project
 Change position of index.php and .htaccess
# cd /path/to/wwwroot/zf_test
# cp public/.htaccess .
# cp public/index.php .
# vi public/.htaccess
RewriteEngine Off
# vi public/index.php
<?php
header('HTTP/1.1 403 Forbidden');
# vi .htaccess
SetEnv APPLICATION_ENV development
# vi index.php
'/../application' change to '/application'
 http://localhost/zf_test/

8. Project Structure
 application
 configs
 controllers
 models
 views
 helpers
 scripts
 docs
 library
 public
 tests

9. Application
 Zend_Application
 Zend_Application_Bootstrap
 Zend_Application_Resource

10. Zend_Application
 Load Configuration.
 Initialize bootstrap.
 Run.
# cd /path/to/wwwroot/zf_test
# vi index.php
... (ignore) ...
// Create application, bootstrap, and run
$application = new Zend_Application(
APPLICATION_ENV,
APPLICATION_PATH . '/configs/application.ini'
);
$application->bootstrap()
->run();

11. application.ini
 Configuration section.
# cd /path/to/wwwroot/zf_test
# vi application/configs/application.ini
[production]
phpSettings.display_startup_errors = 0
phpSettings.display_errors = 0
includePaths.library = APPLICATION_PATH "/../library"
bootstrap.path = APPLICATION_PATH "/Bootstrap.php"
bootstrap.class = "Bootstrap"
appnamespace = "Application"
resources.frontController.controllerDirectory = APPLICATION_PATH "/controllers"
resources.frontController.params.displayExceptions = 0
[staging : production]
[testing : production]
phpSettings.display_startup_errors = 1
phpSettings.display_errors = 1
[development : production]
phpSettings.display_startup_errors = 1
phpSettings.display_errors = 1
resources.frontController.params.displayExceptions = 1

12. phpSettings in application.ini
 Use "ini_set" function.
 See http://www.php.net/manual/en/ini.list.php.

13. includePaths in application.ini
 Use "set_include_path" function.
 Prepend to "include_path".
 "library" is identity for configuration.

14. bootstrap in application.ini
 To load Bootstrap class.

15. Zend_Application_Bootstrap
 Initialize custom resources for project.
# cd /path/to/wwwroot/zf_test
# vi application/Bootstrap.php
<?php
class Bootstrap extends Zend_Application_Bootstrap_Bootstrap
{
protected function _initResource1()
{
$this->bootstrap('resource2'); // Initialize Resource 2 first.
echo "Initialize Resource 1n";
}
protected function _initResource2()
{
echo "Initialize Resource 2n ";
}
}

16. appnamespace in application.ini
 Define the autoloader prefix of models, form,
etc.

17. resources in application.ini
 Load common resources.
 Define resource options.

18. FrontController Resource
 Initialize Front Controller.
 frontController.controllerdirectory
 call Zend_Controller_Front::setControllerDirectory()
 frontController.params
 call Zend_Controller_Front::setParams()

19. Zend_Application_Resource
 Common Resources
 Front Controller
 Router
 Database
 View
 Session
 Layout
 Log
 ...
 More flexible then Bootstrap::_init<Resource>
method.

20. Example: Database Resource
 Initialize Custom Resources for Project
# cd /path/to/wwwroot/zf_test
# zf configure db-adapter "adapter=mysqli&username=uname&password=mypass&dbname=mydb"
A db configuration for the production section has been written to the application
config file.
# vi application/configs/application.ini
[production]
... (ignore) ...
resources.db.adapter = "mysqli"
resources.db.params.username = "uname"
resources.db.params.password = "mypass"
resources.db.params.dbname = "mydb"
... (ignore) ...
 Will initialize Zend_Application_Resource_Db

21. Autoloadernamespaces in application.ini
 Register the prefix of library.
Autoloadernamespaces[] = "My_"

22. pluginPaths in application.ini
 Register the prefix and path of plugin classes.
 Resolve loading order of plugin.
pluginPaths.My_Application_Resource_ = "My/Application/Resource"

23. Summary
 Zend_Application
 Load configuration.
 Set bootstrap and run.
 Zend_Application_Bootstrap
 Initialize resources.
 Zend_Application_Resource
 Get options from configuration.
 Initialize controller, view, database, etc.

24. See you next part.