Requirements
Runtime Configuration
Installing/Configuring
PHP Manual

## Installation

Warning

Do not change the TYPE unless you know what you are doing.

To enable regexp support configure PHP --with-regex[=TYPE] . TYPE can be one of system, apache, php. The default value is php.

The Windows version of PHP has built-in support for this extension. You do not need to load any additional extensions in order to use these functions.

Requirements
Runtime Configuration
Installing/Configuring
PHP Manual