file exists directory issue

[monkeytooth]

 if(file_exists($_SERVER['DOCUMENT_ROOT'].'/img/'.$file2check))

I am not understanding whats wrong with this. The images are stored in a subdirectory inside of the root www/img/

 

the script is in /www/

 

ive tried this a number of ways but its not finding the file. Files does exisit spelling is correct, case sensitive matches accordingly. but it just don't work.. im confused.

[PHP Monkeh]

Have you tried echo-ing $_SERVER['DOCUMENT_ROOT'] to see what it produces?  You may not be getting the expected result.

[monkeytooth]

Echoing out doc_root, I have done, and then I applied that to what I was trying to do and still got nothing. And I have tryed echoing out the same thing in an image tag, and the image displays, but the file exists returns as not found.

[PFMaBiSmAd]

You probably have some non-printing characters in $file2check. Does using var_dump() on $file2check produce an expected length that matches the visible characters?