Derick Rethans - References in PHP
phparch-php-variables-article.pdf (1.2 MB)
Derick Rethans article gives an in-depth look at the inner workings of references in PHP. There are quite some things in this article, that will help you write less memory-hungry code. It’s an absolute must-read article if you have ever wondered why there’s an & in front of variables or in function parameters.
