checkboxlar ve veritabanına kayıt

<?php 
   
  $conn = mysql_connect("localhost","root","") 
  or die(mysql_error()); 
  mysql_select_db("smf",$conn) or die(mysql_error()); 
   
  $boardlar = "select ID_BOARD, name from smf_boards"; 
  $sonuc = mysql_query($boardlar,$conn) or die(mysql_error()); 
  echo'

'; 
  while($lord = mysql_fetch_array($sonuc)) 
  { 
  echo $lord['name'].'<input type="radio" value="'.$lord['ID_BOARD'].'" name="ID_BOARD"><br>'; 
  } 
  echo'<input type="submit" value="Gönder"></form>'; 
   
  ?>

<?php 
   
  echo $_POST['ID_MEMBER']; 
  echo'<br>'; 
  echo $_POST['ID_BOARD']; 
   
  ?>

 
  <?php 
  $conn = mysql_connect("localhost","root","") 
  or die(mysql_error()); 
  mysql_select_db("smf",$conn) or die(mysql_error()); 
  $a=0; 
  $boardlar = "select ID_BOARD, name from smf_boards"; 
  $sonuc = mysql_query($boardlar,$conn) or die(mysql_error()); 
  echo'<form method="post" action="modkaydet.php"><input type="txt" name="ID_MEMBER"><BR>'; 
  while($lord = mysql_fetch_array($sonuc)) 
  { 
  $a++ 
  echo $lord['name'].'<input type="checkbox" value="'.$lord['ID_BOARD'].'" name="ID_BOARD_'.$a.'"><br>'; 
  } 
  echo'<input type="submit" value="Gönder"></form>'; 
  ?> 
  

 
   
  foreach($_POST as $ad=>$bilgi) 
  { 
  echo $ad."--------------".$bilgi; 
  }