php - Read file on a network drive -

i'm running xampp on windows server ; apache running service local account. on server, network share mounted x: specific credentials.

i want access files located on x: , run following code

<?php echo shell_exec("whoami"); fopen('x:\\text.txt',"r"); ?> 

and

theservername\thelocaluser warning: fopen(x:\text.txt) [function.fopen]: failed open stream: no such file or directory 

i tried run apache, not service directly launching httpd.exe ... , code worked.

i can't see causes difference between service , application , how make works.

you're not able using drive letter, network mapped drives single user , can't used services (even if mount user).

what can instead use unc path directly, example:

fopen('\\\\server\\share\\text.txt', 'r'); 

note, however, there few issues php's filesystem access unc paths. 1 example bug filed imagettftext, there issues file_exists , is_writeable. haven't reported latter because can see long-outstanding bug imagettftext, what's point.