I decided to do some math to see how many PHP installs had at least 1
known security vulnerability. So I went to grab statistics from W3Techs,
and correlated that with known Linux Distribution supported numbers. I
then whipped up a spreadsheet and got some interesting numbers out of
it. So interesting, that I need to share...
Source:
http://www.linuxtoday.com/security/php-install-statistics-most-php-deployments-at-risk.html