Description
bool
is_file ( string filename)
Returns TRUE if the filename exists and is a regular file.
Note: The results of this
function are cached. See clearstatcache() for
more details.
Tip: As of
PHP 5.0.0 this function can also be used with
some URL wrappers. Refer to
Appendix J for a listing of which wrappers support
stat() family of functionality.
See also is_dir() and
is_link().