It's console.log() for PHP!

PHP console::log is a class that is modeled after Chrome's console API. The console class is a wrapper class that inserts logs from PHP into the browser's console.

Usage

Include the console class

require_once "console.php";

Variables, objects and arrays can then be passed to the console. The logs are automatically exported to the console.

console::log( "hello world!" );

For more information check out the wiki