Store Multiple Checkboxes in MySQL

[sevendeserts]

I have php script that i want it to store multiple checkboxes value in MySQL. please see this:
[img src=\"http://www.arab-x.com/uploads/Mar-06/3d6c84aba6.jpg\" border=\"0\" alt=\"IPB Image\" /]
and this my script, it shows the rows but doesnt save the values
[code]
<?php
      defined( '_VALID_LM' ) or die( 'Direct Access to this location is not allowed.' );
      global $conn;

      if(isset($save)){
      echo "Hi !";
      $p_searchx =$_POST['search'];
      foreach ($p_searchx as $p_search)
  
        $query = "insert into lm_users(p_search)values('$p_search[search]') WHERE username = 'username[]'";
        $result = mysql_query($query) or die ("query not made");

      }
?>
<table width="100%" border="0" cellspacing="2" cellpadding="2">
  <tr>
    <td>
   <table width="100%" border="0" cellspacing="2" cellpadding="2">
   <tr>
    <td width="30%">Enter the user name:</td>
    <td width="40%"><input name="textfield" type="text" size="25" maxlength="25"></td>
    <td width="30%"><input type="submit" name="Submit" value="Search"></td>
  </tr>
</table>
   </td>
  </tr>
  <tr>
    <td>Editing options </td>
  </tr>
  <tr>
    <td>
   <form method="POST" action="index.php?option=fishylist&action=ucp">
   <table width="100%" border="1" cellspacing="0" cellpadding="2">
  <tr>
    <td width="3%">Del</td>
    <td colspan="2">Details</td>
    <td colspan="4">Privillages</td>
  </tr>
  <tr>
    <td> </td>
    <td width="30%">name</td>
    <td width="30%">branch</td>
    <td width="10%">Search</td>
    <td width="10%">Add</td>
    <td width="10%">Edit</td>
    <td width="10%">Delete</td>
  </tr>
     <?php              
      $rs=$conn->Execute("SELECT * FROM lm_users");
      
      if(($row_total=$rs->RecordCount()>0) && $rsa=$rs->GetArray() ) {
      $row_total=$conn->RecordCount();
      foreach($rsa as $row) {        
   ?>
  <tr>
    <td><input type="checkbox" name="checkbox[]" id="checkbox[]" value="<? //echo $rows['id']; ?>"></td>
    <td><?php echo $row['username']; ?></td>
    <td><?php echo $row['userbranch'];?></td>
    <td><input type="checkbox" name= "search[]" value="1" <?php if ($row['p_search'] == 1) {echo "checked";} ?>></td>
    <td><input type="checkbox" name= "search[]" value="1" <?php if ($row['p_add'] == 1) {echo "checked";} ?>></td>
    <td><input type="checkbox" name= "search[]" value="1" <?php if ($row['p_edit'] == 1) {echo "checked";} ?>></td>
    <td><input type="checkbox" name= "search[]" value="1" <?php if ($row['p_delete'] == 1) {echo "checked";} ?>></td>
  </tr>
     <?php } }?>
  <tr>
    <td> </td>
    <td>Pagination</td>
    <td> </td>
    <td> </td>
    <td> </td>
    <td> </td>
    <td> </td>
  </tr>
  <tr>
    <td> </td>
    <td> </td>
    <td><input type="submit" name="save" value="Save"></td>
    <td> </td>
    <td> </td>
    <td> </td>
    <td> </td>
  </tr>
</table>
   </form>
   </td>
  </tr>
</table>

[/code]