is_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 O for a listing of which wrappers support stat() family of functionality.
See also is_dir(), is_file(), and readlink().
