am getting param from link like

localhost/test?id=1

# get param
$id param("id");


then i select from db 
 
# select id from db
select name from db where id = ? #$id 
$get_name_from_db


#

$TO = 'test@mail.com;
$FROM = 'email@mail.com';
$SUBJECT = 'hello';
$MESSAGE = "Dear friend,

$get_name_from_db
";
 
open(MAIL, "|/usr/sbin/sendmail -t");
 
print MAIL "To: $TO\n";
print MAIL "From: $FROM\n";
print MAIL "Subject: $SUBJECT\n\n";

print MAIL $MESSAGE;

close(MAIL);

my problem everytme when i click submit and link relond. i get message
+ in my inbox but null. $get_name_from_db don't get name in message


this works. when i have just put id directly 


# get id
$id = "1";


then i select from db 
 
# select id from db
select name from db where id = ? #$id 
$get_name_from_db


#

$TO = 'test@mail.com;
$FROM = 'email@mail.com';
$SUBJECT = 'hello';
$MESSAGE = "Dear friend,

$get_name_from_db
";
 
open(MAIL, "|/usr/sbin/sendmail -t");
 
print MAIL "To: $TO\n";
print MAIL "From: $FROM\n";
print MAIL "Subject: $SUBJECT\n\n";

print MAIL $MESSAGE;

close(MAIL);



my qustion is there any logic to store param. 
coz if i get param from localhost/test?id=1
that means when page relond. i get null resluts sent to my email
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