Description
bool
is_readable ( string filename)
Returns TRUE if the filename exists and is readable.
Keep in mind that PHP may be accessing the file as the user
id that the web server runs as (often 'nobody'). Safe mode
limitations are not taken into account.
The results of this function are cached. See
clearstatcache() for more details.
This function will not work on remote files; the file to
be examined must be accessible via the server's filesystem.
See also is_writable().
