1. A PHP file is used to create an HTML page with a Form to collect & submit values which are used by the same PHP file to fill tables within a MySQL database.
2. The table contains a field which holds a boolean (yes/no) value.
3. It is desired to not only allow new table entries but to also display existing table entries, and to allow these latter to be changed & updated.

Creating the Form controls is easy:

$dRad1=new Radio("nDead", 1);
$dRad1->acc="Y";
$dRad1->lab="Yes";
$dRad0=new Radio("nDead", 0);
$dRad0->acc="N";
$dRad0->lab="No";
$dRad0->rt=TRUE;
...
$dRad1->show()." ".$dRad0->show()

All well & good so far, but what happens when you want to display multiple rows from the same table and allow changes? The first thought is perhaps to use something like the following:

$cHid=new Hidden("nid[]", NULL);
$r=mysql_query($s);
while(list($cHid->val,$val)=mysql_fetch_row($r)) {
  $dRad1->chk=($val)?TRUE:NULL;
  $dRad0->chk=($val)?NULL:TRUE;
  ...
  $dRad1->show()." ".$dRad0->show()
}

while(list($cHid->val,$val)=mysql_fetch_row($r)) {
  $dRad1->nam=$dRad0->nam="nDead".$cHid->val;
  $dRad1->chk=($val)?TRUE:NULL;
  $dRad0->chk=($val)?NULL:TRUE;
  ...
  $dRad1->show()." ".$dRad0->show()
}

while(list($key,$val)=each($nName)) {
  $r="nDead".$nid[$key];
  $q=(($nid[$key])?"UPDATE":"INSERT INTO").
  ...
   ", Dead=".((!$$r)?"NULL":"1").
   (($nid[$key])?" WHERE NID=$nid[$key]":"");
  mysql_query($q);
}