php - Obtaining checkbox values for n number of rows -

i'm trying implement bulk action functionality data displayed sql database on webpage. i've echoed out data html format, , i'm trying add checkbox feature user can select number of rows , perform bulk action them choosing value dropdown, e.g. delete- , selected values deleted database. i'm stumbling bit though obtaining selected checkbox values once perform action button submitted. i've put attempt @ code below- i'm getting invalid foreach argument provided error message. i'm has input loop.

any appreciated!

//establish connection database:         require 'db.php';          $query = mysql_query("select * names", $conn);         echo "<tr>";          //echo results while rows of data remain...          while ($row = mysql_fetch_array($query)) {             echo '<tr><td>' . $row['name'] . '</td>';             echo '<td><input type="checkbox" name="checked[' . $row['name'] . ']" value="' . $row['name'] .'"></td>';         }          ?>         </tr>     </table> </div> </body> </html> <?  if (isset($_post['perform_action'])) {      //check checkbox values     foreach ($_post['checked'] $check) {         echo $check;     }      //do values     if ($_post['bulk_action'] == 'delete') {         echo "you chose delete";     } 

if (isset($_post['perform_action'])) {  $query = mysql_query("select * names", $conn);    while ($row = mysql_fetch_array($query)) {        if (isset($_post["checked".$row['name']])){            //hear can checked checkbox            }      }   }