00-index.md

• Overview
• Chapter 1: list comprehension
• Chapter 2: partial application
• Chapter 3: access functions
• Chapter 4: function functions
• Chapter 5: mathematical functions
• Chapter 6: transformation functions
• Chapter 7: miscellaneous

Functional PHP

Import functions

Whenever you want to work with Functional PHP and not reference the fully qualified name, add use Functional as F; on top of your PHP file or use use function Functional\function_name. The latter is used in the documentation is the preferred way starting with PHP 5.6.

Example

use function Functional\map;

map(range(0, 100), function($v) {return $v + 1;});