This » PECL extension is not bundled with PHP.
Information for installing this PECL extension may be found in the manual chapter titled Installation of PECL extensions. Additional information such as new releases, downloads, source files, maintainer information, and a CHANGELOG, can be located here: » https://pecl.php.net/package/yaf.
Yaf has no external dependencies. Install it with:
$ pecl install yaf
$ pie install laruence/yaf
The source code is hosted on » GitHub. To build the extension from source:
$ git clone https://github.com/laruence/yaf.git $ cd yaf $ phpize $ ./configure --enable-yaf $ make && make install
extension=yaf.so
Windows binaries (DLL files) for this PECL extension are available from the PECL website.