Book Image

PHP 7 Programming Cookbook

By : Doug Bierer
Book Image

PHP 7 Programming Cookbook

By: Doug Bierer

Overview of this book

PHP 7 comes with a myriad of new features and great tools to optimize your code and make your code perform faster than in previous versions. Most importantly, it allows you to maintain high traffic on your websites with low-cost hardware and servers through a multithreading web server. This book demonstrates intermediate to advanced PHP techniques with a focus on PHP 7. Each recipe is designed to solve practical, real-world problems faced by PHP developers like yourself every day. We also cover new ways of writing PHP code made possible only in version 7. In addition, we discuss backward-compatibility breaks and give you plenty of guidance on when and where PHP 5 code needs to be changed to produce the correct results when running under PHP 7. This book also incorporates the latest PHP 7.x features. By the end of the book, you will be equipped with the tools and skills required to deliver efficient applications for your websites and enterprises.
Table of Contents (22 chapters)
PHP 7 Programming Cookbook
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Getting the locale from browser data


In order to improve the user experience on a website, it's important to display information in a format that is acceptable in the user's locale. Locale is a generic term used to indicate an area of the world. An effort in the I.T. community has been made to codify locales using a two-part designation consisting of codes for both language and country. But when a person visits your website, how do you know their locale? Probably the most useful technique involves examining the HTTP language header.

How to do it...

  1. In order to encapsulate locale functionality, we will assume a class, Application\I18n\Locale. We will have this class extend an existing class, Locale, which is part of the PHP Intl extension.

    Note

    I18n is a common abbreviation for Internationalization. (Count the number of letters!)

    namespace Application\I18n;
    use Locale as PhpLocale;
    class Locale extends PhpLocale
    {
      const FALLBACK_LOCALE = 'en';
      // some code
    }
  2. To get an idea of what an incoming...