Deletes filename. Similar to the Unix C unlink() function. Returnerer TRUE ved succes, FALSE ved fejl.
Bemærk: As of PHP 5.0.0 unlink() can also be used with some URL wrappers. Refer to Appendiks L for a listing of which wrappers support unlink().
Bemærk: Kontekst understøttelse blev tilføjet i PHP 5.0.0.
See also rmdir() for removing directories.