Use fcgid to run PHP scripts on Apache

php5-fcgid.conf

<IfModule mod_fcgid.c>

  AddHandler fcgid-script .fcgi .php
  # Where to look for the php.ini file?
  DefaultInitEnv PHPRC        "/etc/php5/cgi"
  # Maximum requests a process handles before it is terminated
  MaxRequestsPerProcess       3000
  # Maximum number of PHP processes
  MaxProcessCount             100
  # Number of seconds of idle time before a process is terminated
  IPCCommTimeout              240
  IdleTimeout                 240
  #Or use this if you use the file above
  FCGIWrapper /usr/bin/php-cgi .php

</IfModule>