[PHP] Null Coalesce Operator and Undefined Indexes
Hello,
I'm using PHP 7.1 now and just changed some code to use the Null Coalesce Operator, like so:
$ua = sanitize($_SERVER['HTTP_USER_AGENT']) ?? null;
$request = sanitize($_SERVER['REQUEST_URI']) ?? null;
$protocol = sanitize($_SERVER['SERVER_PROTOCOL']) ?? null;
$method = sanitize($_SERVER['REQUEST_METHOD']) ?? null;
However, this morning I found this line in my error log:
[25-Nov-2017 03:51:48] PHP Notice: Undefined index: HTTP_USER_AGENT in /home/user/public_html/scripts/index.php on line 45
This doesn't make sense to me. I thought this function was supposed to eliminate this warning. Is it because I've wrapped the first variable with a function? How/why is this happening?
Thanks,
Jenni
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php