Is HHVM or PHP5 Zend running?
To make sure that you are in fact running HHVM, run the following command:
phpinfo();It should produce HipHop as the output, instead of the normal php info.
To check for it programmatically, you can use the following (also mentioned here):
if (defined('HHVM_VERSION')) { echo "ruuning HHVM";}
As correctly noticed (thanks @Petah), my FastCGI config was wrong.
I changed it to the snippet below (from here: http://www.mediawiki.org/wiki/HHVM/Vagrant) and everything is working! (add it to your apache2.conf or httpd.conf file)
<IfModule mod_fastcgi.c> Alias /hhvm.fastcgi /var/www/fastcgi/hhvm.fastcgi FastCGIExternalServer /var/www/fastcgi/hhvm.fastcgi -host 127.0.0.1:9000 -pass-header Authorization -idle-timeout 300 <Directory "/var/www/fastcgi"> <Files "hhvm.fastcgi"> Order deny,allow </Files> </Directory> AddHandler hhvm-hack-extension .hh AddHandler hhvm-php-extension .php Action hhvm-hack-extension /hhvm.fastcgi virtual Action hhvm-php-extension /hhvm.fastcgi virtual</IfModule>