/var/log/syslog - cron question

[Spitphire]

*not sure if this is the proper category*

The below command is running every 30 minutes.. I'm not sure what it's for, or what it does. Should I be concerned about this? It's being run as root...


EXTRACT FROM /var/log/syslog:

Feb 22 15:39:01 lp /USR/SBIN/CRON[6854]: (root) CMD ( [ -d /var/lib/php5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -r -0 rm)

[Adnarim]

Looks like some cache is deleted every 30min.

[Spitphire]

hmm. ok thanks.

[Mr. C.]

Removing old, no longer inuse PHP session files.