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

Building a recurring events generator


A very common need related to generating a calendar is the scheduling of events. Events can be in the form of one-off events, which take place on one day, or on a weekend. There is a much greater need, however, to track events that are recurring. We need to account for the start date, the recurring interval (daily, weekly, monthly), and the number of occurrences or a specific end date.

How to do it...

  1. Before anything else, it would be an excellent idea to create a class that represents an event. Ultimately you'll probably end up storing the data in such a class in a database. For this illustration, however, we will simply define the class, and leave the database aspect to your imagination. You will notice that we will use a number of classes included in the DateTime extension admirably suited to event generation:

    namespace Application\I18n;
    
    use DateTime;
    use DatePeriod;
    use DateInterval;
    use InvalidArgumentException;
    
    class Event
    {
      // code
    }
  2. Next, we...