u must learn how to use the function
mail()
u can the address of people to send to, from Mysql's table.
and then for every entry do:
$bc . = " , $mail";
this will create bc= a000@host., b000@host...
a list of email separated by comma
after this just call the funciton mail()
mail ($to,$bcc,$subject,.....)
BCC mean that the mail must be sent to all mails (separated by comma) in add of $to
which is the first reciever
Good luck,:-) i hope that's give more info
PS : learn the the function mail(..,...,.)