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Mastering PHP 7

You're reading from  Mastering PHP 7

Product type Book
Published in Jun 2017
Publisher Packt
ISBN-13 9781785882814
Pages 536 pages
Edition 1st Edition
Languages
Author (1):
Branko Ajzele Branko Ajzele
Profile icon Branko Ajzele

Table of Contents (24) Chapters

Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
1. The All New PHP 2. Embracing Standards 3. Error Handling and Logging 4. Magic Behind Magic Methods 5. The Realm of CLI 6. Prominent OOP Features 7. Optimizing for High Performance 8. Going Serverless 9. Reactive Programming 10. Common Design Patterns 11. Building Services 12. Working with Databases 13. Resolving Dependencies 14. Working with Packages 15. Testing the Important Bits 16. Debugging, Tracing, and Profiling 17. Hosting, Provisioning, and Deployment

Reflection


Reflection is a highly important concept every developer should be wary about. It denotes the ability of a program to inspect itself during runtime, thus allowing easy reverse-engineering of classes, interfaces, functions, methods, and extensions.

We can get a quick taste of the PHP reflection capabilities right from the console. The PHP CLI supports several reflection-based commands:

  • --rf <function name>: This shows information about a function
  • --rc <class name>: This shows information about a class
  • --re <extension name>: This shows information about an extension
  • --rz <extension name>: This shows information about the Zend extension
  • --ri <extension name>: This shows the configuration for an extension

The following output demonstrates the result of the php --rf str_replace command:

Function [ <internal:standard> function str_replace ] {
  - Parameters [4] {
     Parameter #0 [ <required> $search ]
     Parameter #1 [ <required> $replace...
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