Deletes filename. Similar to the Unix C unlink() function. Siker esetén TRUE értékkel tér vissza, ellenkező esetben FALSE értéket ad.
Megjegyzés: As of PHP 5.0.0 unlink() can also be used with some URL wrappers. Refer to L Függelék for a listing of which wrappers support unlink().
Megjegyzés: The context parameter was added as of PHP 5.0.0.
See also rmdir() for removing directories.