PHP Form using an array - php

Question

Let me present my code first:
<?php include ('header.php'); ?>
<h3>Extra menu items , van eigen pagina's</h3>
<!-- zet menu onderdelen aan of uit -->
<?php
if ($_POST['submit'] == 'Verzenden') {
$checkbox_vals = $_POST['np_menu_active_post']; // This will pass the selected checkbox values as an array
//if(count($checkbox_vals) > 0) {
// Loop it and update the values in DB
foreach( $checkbox_vals as $key ){
$updatequery = "UPDATE custompage set np_menu_active = '$key'";
mysql_query($updatequery) or die("Couldn't get file list");
}
//}
?>
<meta HTTP-EQUIV="Refresh" CONTENT="0"; URL="<?php echo $_SERVER['PHP_SELF'];?>">
<?php
}
?>
<?php
$dbQuery_custom_toggle = "SELECT * ";
$dbQuery_custom_toggle .= "FROM custompage";
$result_custom_toggle = mysql_query($dbQuery_custom_toggle) or die("Couldn't get file list");
while($row = mysql_fetch_array($result_custom_toggle)) {
// $nptitel = $row['np_titel'];
// $nptekst = $row['np_tekst'];
?>
<form method="post" action="<?php echo $_SERVER['PHP_SELF'];?>">
<input type="hidden" name="np_menu_active_post[]" value="0" />
<?php echo $row['np_menu_titel'];?> <input type="checkbox" name="np_menu_active_post[]" value="1" <?php if($row['np_menu_active'] == "1"){echo 'checked="checked"';}?> /> <br />
<?php
}
?>
<input type="Submit" name="submit" value="Verzenden" class="btn-primary">
</form>
<!-- einde menu toggles -->
<br />
<br />
So im trying to make this form write the 1 value or 0 value based upon the checkboxed to the mysql db.
Its partly working, when i select the last checkbox, it checks all, and writes that to the db.

Answer 1

With the foreach loop you update your db in the same field with each checkbox, so the last checkbox is the only thing that is left.
Depending on the desired result, you need to differ the column (so np_menu_active) for each checkbox, or need to add a WHERE condition (as Rick said) to differ the row.
E.g. If you would like to save the checkbox settings for multiple users, you would create a column for each checkbox and a row for each user.