Hi to all

I need help for this problem that i'm trying to solve for a while (i'm new in PHP).
I have a form with several checkboxes which values are pulled from a database.
I managed to display them in the form, assign an appropriate value to each, but cannot insert their values into other database.

Here's the code:

<form id="form1" name="form1" method="post" action="">
<?php
$info_id=$_GET['info_id'];
$kv_dodatoci=mysql_query("SELECT * FROM `dodatoci`") or die('ERROR DISPLAYING: '.mysql_error());
while($kol=mysql_fetch_array($kv_dodatoci)){
$id_dodatoci=$kol['id_dodatoci'];
$mk=$kol['mk'];


echo '<input type="checkbox" name="id_dodatoci[]" id="id_dodatoci" value="'.$id_dodatoci.'" />';
echo '<label for="'.$id_dodatoci.'">'.$mk.'</label><br />';
}
?>
<input type="hidden" value="<?=$info_id?>" name="info_id" />
<input name="insert_info" type="submit" value="Insert Additional info" />
</form>
<?php
if(isset($_POST['insert_info']) && is_array($id_dodatoci)){
echo $id_dodatoci.'<br />';
echo $mk.'<br />';

// --- Guess here's the problem ----- //
foreach($_POST['id_dodatoci'] as $dodatok){
$dodatok_kv=mysql_query("INSERT INTO `dodatoci_hotel`(id_dodatoci,info_id) VALUES ('$dodatok','$info_id')") or die('ERROR INSERTING: '.mysql_error());
}

}


?>

my problem is to loop through all checkboxes, and for each checked, populate a separate record in a database.
actually i don't know how to recognize the which box is checked, and put the appropriate value in db.


I hope someone can help me solve this or give me some guideline.

Thanks in advance.

Here's a clue
Only a checked check box will return a key\value pair.

PHP Code:

<? foreach ($ids as $id): ?>
<input type="hidden"   name="boxes[<?= $id ?>]" value="0" />
<input type="checkbox" name="boxes[<?= $id ?>]" value="1" />
<? endforeach ?>