checkbox problem

[ACIDCORE]

if(isset($_POST['check'])) {
    $id = $_POST['check'];
    $noc = count($id);
    $a = 0;
    for($i=0; $i < $noc; $i++)
    {
        $del = mysql_query("DELETE FROM ibwf_private WHERE id='".$id[$i]."'");
       if($del) $a++;
    }
    if($a>0){
        echo "$a/$noc Messages Deleted Successfully";
    }else{
        echo "Can't Delete Messages At The Moment";
    }
} 

I thnk you need this code in upper part.

I'll take a test. Wait for a while


Done testing,
Hope it will work.

echo "<head>";
  echo "<title>PM Inbox</title>";
  echo "<link rel=\"stylesheet\" type=\"text/css\" href=\"$white[0]\"/>";
  echo "</head>";

if(isset($_POST['check'])) {
    $id = $_POST['check'];
    $noc = count($id);
    $a = 0;
    for($i=0; $i < $noc; $i++)
    {
        $del = mysql_query("DELETE FROM ibwf_private WHERE id='".$id[$i]."'");
       if($del) $a++;
    }
    if($a>0){
        $delMsg = "$a/$noc Messages Deleted Successfully";
    }else{
        $delMsg =  "Can't Delete Messages At The Moment";
    }
}

echo "<div class=\"top\">PM INBOX</div><hr/><div class=\"center\">";
echo getshoutbox($sid);
echo "</div></div><hr/><div class=\"nav\">PM Messages</div><hr/>";
echo "<div class=\"center\"><a href=\"inbox_sendto.php\">Send PM</a> <a href=\"inbox.php?view=snt\">Sent Items</a> <a href=\"inbox_folder.php\">Archive</a></div><hr/><div>";

    $view = safe(cleanInput($_GET["view"]));
    //////ALL LISTS SCRIPT <<
    if($view=="")$view="all";
    if($page=="" || $page<=0)$page=1;
    $myid = getuid_sid($sid);
    $doit=false;
        $noi = mysql_fetch_array(mysql_query("SELECT COUNT(*) FROM ibwf_private WHERE touid='".$uid."' AND folderid='0'"));
    $num_items = $noi[0]; //changable
    $items_per_page= 10;
    $num_pages = ceil($num_items/$items_per_page);
    if($page>$num_pages)$page= $num_pages;
    $limit_start = ($page-1)*$items_per_page;
    if($num_items>0)
    {
      if($doit)
      {
        $exp = "&amp;rwho=$myid";
      }else
      {
        $exp = "";
      }
    //changable sql
    if($view=="all")
  {
    $sql = "SELECT
            a.name, b.id, b.byuid, b.unread, b.starred FROM ibwf_users a
            INNER JOIN ibwf_private b ON a.id = b.byuid
            WHERE b.touid='".$myid."' AND b.folderid='0'
            ORDER BY b.timesent DESC
            LIMIT $limit_start, $items_per_page
    ";
  }else if($view=="snt")
  {
    $sql = "SELECT
            a.name, b.id, b.touid, b.unread, b.starred FROM ibwf_users a
            INNER JOIN ibwf_private b ON a.id = b.touid
            WHERE b.byuid='".$myid."'
            ORDER BY b.timesent DESC
            LIMIT $limit_start, $items_per_page
    ";
  }else if($view=="str")
  {
    $sql = "SELECT
            a.name, b.id, b.byuid, b.unread, b.starred FROM ibwf_users a
            INNER JOIN ibwf_private b ON a.id = b.byuid
            WHERE b.touid='".$myid."' AND b.starred='1'
            ORDER BY b.timesent DESC
            LIMIT $limit_start, $items_per_page
    ";
  }else if($view=="urd")
  {
    $sql = "SELECT
            a.name, b.id, b.byuid, b.unread, b.starred FROM ibwf_users a
            INNER JOIN ibwf_private b ON a.id = b.byuid
            WHERE b.touid='".$myid."' AND b.unread='1'
            ORDER BY b.timesent DESC
            LIMIT $limit_start, $items_per_page
    ";
  }
    
    $items = mysql_query($sql);
    echo mysql_error();
    while ($item = mysql_fetch_array($items))
    {
$i++;
 $avlink = getavatar($item[2]);
      if($item[3]=="1")
      {
        $iml = "[_]";
      }else{
        if($item[4]=="1")
        {
            $iml = "[S]";
        }else{

        $iml = "[x]";
        }
      }
      $delete = "$item[1]";
      $lnk = "<form method=\"POST\" action=\"inbox.php\"><input type=\"checkbox\" name=\"check[]\" value=\"$item[1]\"><a href=\"inbox_readpm.php?pmid=$item[1]\">$iml$item[0]</a>";
      
      $pmtext = mysql_fetch_array(mysql_query("SELECT text FROM ibwf_private WHERE id='".$item[1]."'"));
      $mprev = (htmlspecialchars(strlen($pmtext[0])<20?$pmtext[0]:substr($pmtext[0], 0, 15)));
      //$mtext = parsepm($mprev, $sid);
      echo "$lnk: $mprev..";
      echo "<br/>";


    }

echo "<hr />";
echo $delMsg;
echo "<input type=\"submit\" value=\"Submit\" name=\"submit\">
</form></div><hr/>";

$npage = $page+1;
    if($page>1)
    {
      $ppage = $page-1;
      echo "<a href=\"inbox.php?page=$ppage&amp;view=$view$exp\">«Prev</a> ";
    }
    if($page<$num_pages)
    {
      $npage = $page+1;
      echo "<a href=\"inbox.php?page=$npage&amp;view=$view$exp\">Next»</a>";
    }
    echo "<br/>$page of $num_pages<br/>";
    if($num_pages>2)
    {
      $rets = "<form action=\"inbox.php\" method=\"get\">";
      $rets .= "Go To Page: <input name=\"page\" style=\"-wap-input-format: '*N'\" size=\"2\"/>";
$rets .= "<input type=\"submit\" value=\"Go\"/>";
        $rets .= "<input type=\"hidden\" name=\"do\" value=\"$do\"/>";
        $rets .= "<input type=\"hidden\" name=\"sid\" value=\"$sid\"/>";
         
        $rets .= "<input type=\"hidden\" name=\"view\" value=\"$view\"/>";
$rets .= "</form>";
        echo $rets;
    }



    }else{

      echo "You Have No Private Messages<a href=\"inbox.php?do=sendto\">Send Message</a>";

    }


  ////// UNTILL HERE
echo "<hr><div class=\"center\"><a href=\"inbox_sendto.php\">Send PM</a> <a href=\"javascript: history.go(-1)\">Exit PM</a> <a href=\"inbox.php?view=snt\">Sent Items</a> <a href=\"inbox_folder.php\">Archive</a> <a href=\"index.php\">Home</a></div>";
$plc = mysql_fetch_array(mysql_query("SELECT saan FROM ibwf_users WHERE id='".$uid."'"));
echo "<div class=\"footer\">";
echo "$mysite</div>";
echo "<div class=\"timer\"><a href=\"index.php?do=signoff\" accesskey=\"0\">LogOut</a> <a href=\"terms.php\" accesskey=\"1\">Help</a></div>";
echo "<div class=\"timer\">Script Timer ";
$load = microtime();
print (number_format($load,5));
echo "s";
echo "</div>";
  echo "</body>";
  } 

Still not working....