PHP - editing data in db issue - php

Question

I'm going to keep it short and simple. I'm writing a really basic code in php which adds content to mysql db and I've run into an issue with editing. This is my form:
if($idExists)
{
Print '
<form action="editIt.php" method="POST">
<div name="id"> '. $id . '</div>
Enter new detail: <input type="text" name="details"/><br/>
public post? <input type="checkbox" name="public[]" value="yes"/><br/>
<input type="submit" value="Update List"/>
</form>
';
}
And this is my editIt.php
//session start and stuff
if(filter_input(INPUT_SERVER, 'REQUEST_METHOD', FILTER_SANITIZE_STRING) == "POST")
{
echo "<script type='text/javascript'>alert('EDITIT!');</script>";
mysql_connect("localhost", "root", "") or die(mysql_error());
mysql_select_db("WebSiteDB") or die ("Cannot connect to database");
$id = $_POST['id'];
$details = mysql_real_escape_string($_POST['details']);
$time = strftime("%X");
$date = strftime("%B %d, %Y");
$isPublic = 'no';
foreach($_POST['public'] as $eachCheck)
{
if($eachCheck != NULL)
$isPublic = "yes";
}
mysql_query("UPDATE list SET details='$details', dateEdited='$date', timeEdited= '$time', public='$isPublic' WHERE id='$id'");
header("location: home.php");
}
I can't really find an issue with this code (which is not really strange, I'm a newbie at web stuff) and yet it just goes to home.php and does not change data in DB. Please, help me jump this ledge, so I can go on with my life.

Answer 1

I think, the problem is in this line $id = $_POST['id'];. On form submit, the input field value will only be submitted, not the DIV value.
So, please change from :
if($idExists)
{
Print '
<form action="editIt.php" method="POST">
<div name="id"> '. $id . '</div>
Enter new detail: <input type="text" name="details"/><br/>
public post? <input type="checkbox" name="public[]" value="yes"/><br/>
<input type="submit" value="Update List"/>
</form>
';
}
To :
if($idExists)
{
Print '
<form action="editIt.php" method="POST">
<input type="hidden" name="id" value="' . $id . '">
Enter new detail: <input type="text" name="details"/><br/>
public post? <input type="checkbox" name="public[]" value="yes"/><br/>
<input type="submit" value="Update List"/>
</form>
';
}