This is my continuous tail script. It's good to have running on another screen while you are working on PHP code. You can ct the apache error_log and watch the log as the page is accessed. Streamlines the whole debugging thing.
#/bin/sh
if [[ "$1" == "" ]]
then
echo "Continuous Tail Script (50 Lines, 5s Interval). Tim 10/09/2007"
echo "Usage: ct [file]"
else
clear
tail -n 50 -s 5 -f $1
fi