Upgrading to PHP 7 – Mini eBook by O’Reilly

A couple of days ago, O’Reilly published a free mini eBook from Davey Shafik about Upgrading to PHP 7. This eBook has around 80 pages and is available in ePub, Mobi, and PDF at this link.

 

upgrade-php7

“Upgrading to PHP 7” book review:

PHP 7—the most dramatic update to the language in over a decade—has arrived. This O’Reilly report provides you with a short guide to the major changes in this new release, including a revamped engine (Zend Engine 3), a bunch of new features, and lots of language cleanup. You’ll learn about basic language changes, deprecated features, Unicode enhancements, changes in Object-Oriented programming, and other enhancements.

 

The book also covers why it took more than 10 years for the next major version of PHP since PHP 5 – and also what happened to version 6 in the meantime.

Important details regarding changes to PHP 7, include:

– Deprecated features, starting with alternative PHP tags and POSIX-compatible regular expressions
– Uniform Variable Syntax, including consistency fixes and new syntax
– Basic language changes, such as new operators, constant arrays, new functions, and regular expressions
– Expectations and Assertions
– Error handling
– Enhancements to PHP’s Unicode, closure, and Generator features
– Changes in Object-Oriented programming
– Scalar type hints (perhaps the most polarizing and exciting new feature)

– Quoted from daveyshafik.com

  • Dota ALTAMASH

    Thanks for sharing. PHP 7 may be a big scare for WordPress and CodeIgnitor developers of old. Plus there is a possibility that many site will stop working if server switch from php 5.* to PHP 7.