idle.php.net has SSH on port 22622.
34sp1.php.net has gone away and we don't need to monitor it anymore.
There doesn't seem to be a HTTP server on dp1.
Use custom host definition for PHP boxes.

This definition causes Nagios to check 10 times instead of 5 before
alerting about a host being down. This should reduce the likeliness
of false positives regarding hosts checks significantly.
Service checks are also much more relaxed now.

Similar to the change for host checks, also service checks will be
performed 10 times now instead of 4 before triggering an alert.