ereg('^[-!#$%&'*+./0-9=?A-Z^_`a-z{|}~]+'.'@'.'[-!#$%&'*+/0-9=?A-Z^_`a-z{|}~]+.'.'[-!#$%&' '*+./0-9=?A-Z^_`a-z{|}~]+$',$address)