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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 is to use 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.


Installing/Configuring
PHP Manual