This package is based on the libradius of FreeBSD. This PECL adds full support for Radius Authentication (» RFC 2865) and Radius Accounting (» RFC 2866). This package is available for Unix (tested on FreeBSD and Linux) and for Windows.

 1. Download it from http://pecl.php.net/package/radius
 2. Untar the package
 3. In the new unpacked radius folder, run phpize (if you don't have phpize, check below)
 4. ./configure; make && make install
 5. Restart httpd

If you don't have PHPIZE:

Try first:

which phpize

and if you don't get any result, you must install php-devel package.

# rpm -q --whatprovides /usr/bin/phpize 
php-devel-5.2.6