Hi, I noticed in my error log that the function operating_system_detection() in the func_operating_system.php file produces the following error:


Code (][09-Feb-2016 09:00:38 UTC):

PHP Warning:  preg_match() [<a href='function.preg-match'>function.preg-match</a>]: Unknown modifier '.' in /home/mywebsite/public_html/web/func/func_operating_system.php on line 142

My error log is filled up with the above error message.

This is not an error, just a warning.
The desired function just gets to less information to work conform.
We will have to put extra code into this function to prevent this behaviour, this will be done with the next update.

Thanks very much for your quick response. Is there an easy way to fix this in the mean time?

Question back: is the module operating system in your stat filled with valid values?

Yes, it looks like they are all valid values.

ok thx. Then we have just to exclude this misuse of the operating system detection function.

Hi, has this issue been resolved yet?

Any news regarding this issue?

Soory no, there has not been any change, we did not get this warning.
Is it still like this? Still the same PHP version on your server?

I did some testing, and it seems that the php warning is only generated when the $_SERVER [ "HTTP_USER_AGENT" ] variable returns an empty string.

For example, when I updated the following line:


Code (php):

$operating_system = strip_tags ( operating_system_detection ( $_SERVER [ "HTTP_USER_AGENT" ] ) ); // get operating system

to:


Code (php):

$operating_system = strip_tags ( operating_system_detection ( '' ) ); // get operating system

I got the following warning again in the error log:


Code (]PHP Warning:  preg_match() [<a href='function.preg-match'>function.preg-match</a>):

: Unknown modifier ']' in /home/my_website/public_html/web/func/func_operating_system.php on line 143