Book Image

Mastering PHP 7

By : Branko Ajzele
Book Image

Mastering PHP 7

By: Branko Ajzele

Overview of this book

PHP is a server-side scripting language that is widely used for web development. With this book, you will get a deep understanding of the advanced programming concepts in PHP and how to apply it practically The book starts by unveiling the new features of PHP 7 and walks you through several important standards set by PHP Framework Interop Group (PHP-FIG). You’ll see, in detail, the working of all magic methods, and the importance of effective PHP OOP concepts, which will enable you to write effective PHP code. You will find out how to implement design patterns and resolve dependencies to make your code base more elegant and readable. You will also build web services alongside microservices architecture, interact with databases, and work around third-party packages to enrich applications. This book delves into the details of PHP performance optimization. You will learn about serverless architecture and the reactive programming paradigm that found its way in the PHP ecosystem. The book also explores the best ways of testing your code, debugging, tracing, profiling, and deploying your PHP application. By the end of the book, you will be able to create readable, reliable, and robust applications in PHP to meet modern day requirements in the software industry.
Table of Contents (24 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
16
Debugging, Tracing, and Profiling

Input/output streams


Quite early in development, every programmer stumbles upon the streams term. This seemingly frightening term represents a form of data. Unlike the typical finite type of data, streams represent a potentially unlimited sequence of data. In PHP terms, a stream is a resource object exhibiting streamable behavior. Using various wrappers, the PHP language supports a wide range of streams. The stream_get_wrappers() function can retrieve a list of all the registered stream wrappers available on the currently running system, such as the following:

  • php
  • file
  • glob
  • data
  • http
  • ftp
  • zip
  • compress.zlib
  • compress.bzip2
  • https
  • ftps
  • phar

The list of wrappers is quite extensive, but not finite. We can also register our own wrappers using the stream_wrapper_register() function. Each wrapper tells the stream how to handle specific protocols and encodings. Each stream is therefore accessed through the scheme://target syntax, such as the following:

  • php://stdin
  • file:///path/to/file.ext
  • glob://var/www/html/*.php...