Book Image

Phalcon Cookbook

By : Serghei Iakovlev, David Schissler
1 (2)
Book Image

Phalcon Cookbook

1 (2)
By: Serghei Iakovlev, David Schissler

Overview of this book

Phalcon is a high-performance PHP framework delivered as a PHP extension. This provides new opportunities for speed and application design, which until recently have been unrealized in the PHP ecosystem. Packed with simple learning exercises, technology prototypes, and real-world usable code, this book will guide you from the beginner and setup stage all the way to advanced usage. You will learn how to avoid niche pitfalls, how to use the command-line developer tools, how to integrate with new web standards, as well as how to set up and customize the MVC application structure. You will see how Phalcon can be used to quickly set up a single file web application as well as a complex multi-module application suitable for long-term projects. Some of the recipes focus on abstract concepts that are vital to get a deep comprehension of Phalcon and others are designed as a vehicle to deliver real-world usable classes and code snippets to solve advanced problems. You’ll start out with basic setup and application structure and then move onto the Phalcon MVC and routing implementation, the power of the ORM and Phalcon Query Language, and Phalcon’s own Volt templating system. Finally, you will move on to caching, security, and optimization.
Table of Contents (17 chapters)
Phalcon Cookbook
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface
Index

Centralizing validations for rock solid business rules


Phalcon offers flexible tools to validate data such as user input. The Phalcon\Validation component is strategically located in its own namespace, so that it can be used at any point and in any part of your application, such as validating posted data from the UI, data before it is saved to the database, data sent to the UI, and so on.

In this recipe, we will create some validators and discuss the common approaches on how to use them in your application.

Getting ready

To successfully implement this recipe, you need to have a Phalcon application and the Volt engine configured. In our example, we will use a sample application generated by Phalcon Developer Tools. However, you can use any other application that is available to you.

You will also need to have a web server installed and configured for handling requests to your application. Your application must be capable of receiving requests and you should have the necessary controllers and...