crontab -e
# Add:
*/15 * * * * php /var/www/html/dlhd/refresh_dlhd.php > /dev/null 2>&1

php /home/surpriseplaylist/dlhd1.surprisesports.stream/dlhd/refresh_dlhd.php > /dev/null 2>&1

0,30	*	*	*	*	flock -n /home/surpriseplaylist/dlhd1.surprisesports.stream/dlhd/dlhd_refresh.lock php /home/surpriseplaylist/dlhd1.surprisesports.stream/dlhd/refresh_dlhd.php >/dev/null 2>&1