is_link -- Tells whether the filename is a symbolic link
Description
bool is_link ( string filename )
Returns TRUE if the filename exists and is a symbolic link.
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 M for a listing of which wrappers support
stat() family of functionality.