A new PPA repo has been updated to the latest Yaf.
Available on Ubuntu 18.04, 20.04, 20.10, and 21.04
> sudo add-apt-repository ppa:mikespook/php-yaf
> sudo apt-get update
> sudo apt-get install php-yaf
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.
Windows binaries (DLL files) for this PECL extension are available from the PECL website.