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

Implementing object-relational mapping


There are two primary techniques to achieve a relational mapping between objects. The first technique involves pre-loading the related child objects into the parent object. The advantage to this approach is that it is easy to implement, and all parent-child information is immediately available. The disadvantage is that large amounts of memory are potentially consumed, and the performance curve is skewed.

The second technique is to embed a secondary lookup into the parent object. In this latter approach, when you need to access the child objects, you would run a getter that would perform the secondary lookup. The advantage of this approach is that performance demands are spread out throughout the request cycle, and memory usage is (or can be) more easily managed. The disadvantage of this approach is that there are more queries generated, which means more work for the database server.

Note

Please note, however, that we will show how the use of prepared statements...