Feeds

Put some MVC in your PHP

Trial by separation

Intelligent flash storage arrays

Hands on The Model-View-Controller (MVC) architecture provides a useful three-tier pattern for building software, as MVC patterns decouple the graphical user interface (GUI) from the application logic.

That comes in useful when it comes to changing an application after it has been deployed. Separation of the views from the data means modifications made in the views do not affect the model and modifications made to the model to not effect the graphical user interface, simplifying maintenance. Also, an application may be expanded to add views and controllers that talk to a model without actually making any changes to the model itself.

Unfortunately for web developers, one of the features lacking in PHP until recently has been support for the MVC architecture. That has meant the MVC pattern has had to be implemented externally.

Some PHP frameworks have now added support for the MVC pattern, most notably the Zend Framework - one of the leading open-source PHP frameworks. Zend simplifies the task of developing secure, reliable web-based applications and web services. Zend provides an extensible code base, a flexible architecture and does not require any configuration files.

In this article we shall connect Zend to a database from Oracle, a company that's been working closely to optimize its software with Zend.

Fire up Zend

The Zend framework requires at least PHP 5.1.4. It's recommended to install PHP 5.2.2 or later because of the security and performance improvements in the newer version of PHP. Download the Zend Framework zip file from here and - if you don't already have it - download and install Apache 2.2.3, making sure it's configured with PHP. Then, add the following include_path directive to php.ini configuration file:

include_path=".;C:\ZendFramework\ZendFramework-1.0.1\library"

Enable the PHP database extension for Oracle database in php.ini.

extension=php_oci8.dll

Restart Apache HTTP Server. Install the Oracle database including the sample schemas and create a table Catalog using SQL script catalog.sql.

Create an MVC application

Now it's time to create a Create Read Update Delete (CRUD) application using Zend's MVC architecture that'll let us build, read, update, and delete an Oracle database table row.

In the MVC architecture the model represents the entities/class objects, the controller implements the business logic and integrates the model with the view, and the view represents the presentation layer or the user interface.

The MVC architecture in Zend Framework is implemented by the Zend_Controller component. The Zend_Controller_Front class provides a front controller for the MVC architecture. The front controller intercepts all requests and dispatches the requests to action controllers based on the request URL. The format of the request URL is http://localhost/controller/action. If no controller is specified the index controller and the index action are invoked. An action controller class extends the Zend_Controller_Action class. An action controller class is named with the notation <ControllerName>Controller. For example, the action controller class for the "index" controller is IndexController.

Providing a secure and efficient Helpdesk

More from The Register

next story
UNIX greybeards threaten Debian fork over systemd plan
'Veteran Unix Admins' fear desktop emphasis is betraying open source
Netscape Navigator - the browser that started it all - turns 20
It was 20 years ago today, Marc Andreeesen taught the band to play
Redmond top man Satya Nadella: 'Microsoft LOVES Linux'
Open-source 'love' fairly runneth over at cloud event
Chrome 38's new HTML tag support makes fatties FIT and SKINNIER
First browser to protect networks' bandwith using official spec
Admins! Never mind POODLE, there're NEW OpenSSL bugs to splat
Four new patches for open-source crypto libraries
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.