PHP script registration with authorization by email.
Man and register all of the data on proveryayutsya uniqueness zapisisayutsya spatial information into the database and otpravlyaetsya activation link in the email registered.
Then the user comes to the link that comes to his Emel, then his status allows emu log in.
The script is working. Himself used in the creation of sites. Very low price like me =)
And more! Everyone who loves to play in the "Give the loot back goods sucks" request to retire from the page and never return.