Hi. I don't know or understand under what circumstance $_SERVER['REMOTE_ADDR'] would not register, but I periodically get this error in my logs:

PHP Warning: strstr(): Empty needle in /includes/functions/functions_lookups.php on line 712
It hasn't always been that particular file/line but that's the one it was this time. Every time I've seen it, it is related to $_SERVER['REMOTE_ADDR']

I wonder if the function(s) should check if $_SERVER['REMOTE_ADDR'] actually exists prior to doing the strstr?