Hi. The command first posted was the following:
Code:
/usr/local/bin/php4 -f /phpdig/admin/spider.php http://www.domain.com >> phpdigg.log
Was /phpdig/admin/spider.php the full path to spider.php? Perhaps try /usr/local/bin/php or just php instead of /usr/local/bin/php4 in the command.
I'm not all that familiar with Debain, but with Linux you can set a number of cronjobs up to the limit imposed by a host. Perhaps try setting a test cronjob that prints some text to a file and see if it removes the PhpDig cronjob.