Sorgu bu şekilde olmalı
$DogumSorgu=$db->GetRows("SELECT DATE_FORMAT(NOW(),'%e')=DATE_FORMAT(MemberBirthday ,'%e') AND DATE_FORMAT(NOW(),'%c')=DATE_FORMAT(MemberBirthday ,'%c') AS DogumGunuOlanlar,MemberID,MemberUsername,MemberNam e,MemberLastname,MemberEmail,MemberBirthday,Member Phone FROM members where MemberID");