Replace outdated book with one of the more recent ones [skip ci]

PHP Cookbook by Eric A. Mann

README.md

 * [Functional Programming in PHP](https://www.functionalphp.com/) - This book will show you how to leverage these new PHP5.3+ features by understanding functional programming principles
 * [Grumpy PHPUnit](https://leanpub.com/grumpy-phpunit) - A book about unit testing with PHPUnit by Chris Hartjes.
 * [Mastering Object-Orientated PHP](https://masteringobjectorientedphp.com/) - A book about object-orientated PHP by Brandon Savage.
-* [Modern PHP New Features and Good Practices](https://www.oreilly.com/library/view/~/9781491905173/) - A book about new PHP features and best practices by Josh Lockhart.
+* [PHP Cookbook](https://www.oreilly.com/library/view/php-cookbook/9781098121310/) - This cookbook provides code recipes to help you resolve a variety of coding issues.
 * [Modernizing Legacy Applications in PHP](https://leanpub.com/mlaphp) - A book about modernizing legacy PHP applications by Paul M. Jones.
 * [PHP 7 Upgrade Guide](https://leanpub.com/php7) - An ebook covering all of the features and changes in PHP 7 by Colin O'Dell.
 * [Scaling PHP Applications](https://www.scalingphpbook.com) - An ebook about scaling PHP applications by Steve Corona.