Book Image

Learning PHP 7 High Performance

Book Image

Learning PHP 7 High Performance

Overview of this book

PHP is a great language for building web applications. It is essentially a server-side scripting language that is also used for general-purpose programming. PHP 7 is the latest version, providing major backward-compatibility breaks and focusing on high performance and speed. This fast-paced introduction to PHP 7 will improve your productivity and coding skills. The concepts covered will allow you, as a PHP programmer, to improve the performance standards of your applications. We will introduce you to the new features in PHP 7 and then will run through the concepts of object-oriented programming (OOP) in PHP 7. Next, we will shed some light on how to improve your PHP 7 applications' performance and database performance. Through this book, you will be able to improve the performance of your programs using the various benchmarking tools discussed. At the end, the book discusses some best practices in PHP programming to help you improve the quality of your code.
Table of Contents (17 chapters)
Learning PHP 7 High Performance
Credits
About the Author
Acknowledgement
About the Reviewer
www.PacktPub.com
Preface
Index

Redis – the key-value cache store


Redis is an open source, in-memory key-value data store that is widely used for database caching. According to the Redis website (www.Redis.io), Redis supports data structures such as strings, hashes, lists, sets, and sorted lists. Also, Redis supports replication and transactions.

Note

Redis installation instructions can be found at http://redis.io/topics/quickstart.

To check whether Redis is working fine on your server or not, start the Redis server instance by running the following command in the terminal:

redis server

Then issue the following command in a different terminal window:

redis-cli ping

If the output of the preceding command is as follows, the Redis server is ready to be run:

Redis provides a command line, which provides some useful commands. There are two ways to execute commands on the Redis server. You can either use the previous method or just type redis-cli and hit Enter; we will be presented with the Redis command line, where we can then...