PHP loop error message - php

Question

I am new to php as well as posting php code. SO if there is any information missing please let me know.
I am trying to have a list of products echo through a foreach loop. I am not sure whether the mistake is just syntax or something bigger than that.
Here is the error message:
Home
Product List
Code Name Version Release Date
( ! ) Warning: Invalid argument supplied for foreach() in /Applications/XAMPP/xamppfiles/htdocs/tech_support/product_manager/product_list.php on line 15
Call Stack
# Time Memory Function Location
1 0.0004 247496 {main}( ) ../index.php:0
2 0.0024 273008 include( '/Applications/XAMPP/xamppfiles/htdocs/tech_support/product_manager/product_list.php' ) ../index.php:20
Here's is product_list php.
<?php include '../view/header.php'; ?>
<h1>Product List</h1>
<!-- display a table of products -->
<h2><?php echo $products; ?></h2>
<tr>
<th>Code</th>
<th>Name</th>
<th>Version</th>
<th>Release Date</th>
<th> </th>
</tr>
<?php foreach ($products as $product) : ?> //<-----line 15
<tr>
<td><?php echo $product['product_id']; ?></td>
<td><?php echo $product['name']; ?></td>
<td class="right"><?php echo $product['version']; ?></td>
<td><form action="." method="post">
<input type="hidden" name="product_id"
value="<?php echo $product['releaseDate']; ?>">
<input type="submit" value="Delete">
</form></td>
</tr>
<?php endforeach; ?>
<p>Add Product</p>
<?php include '../view/footer.php'; ?>
Heres the code I have in my index folder.
<?php
require('../model/database.php');
require('../model/product_db.php');
$action = filter_input(INPUT_POST, 'action');
if ($action === NULL) {
$action = filter_input(INPUT_GET, 'action');
if ($action === NULL) {
$action = 'list_products';
}
}
if ($action == 'list_products') {
$product_id = filter_input(INPUT_GET, 'product_id',
FILTER_VALIDATE_INT);
if ($product_id == NULL || $product_id == FALSE) {
$product_id = 1;
}
$products = get_product($product_id);
include('product_list.php');
}
else if ($action == 'show_add_form') {
$product = get_product($product_id);
include('product_add.php');
.......
Just in case here is my database functions
<?php
function get_product($product_id) {
global $db;
$query = 'SELECT * FROM products
WHERE productCode = :product_id';
$statement = $db->prepare($query);
$statement->bindValue(":product_id", $product_id);
$statement->execute();
$products = $statement->fetch();
$statement->closeCursor();
return $products;
}
?>

Answer 1

If $products is an object you can try to typecast it before use it in loop like this: $array = (array) $yourObject;

Answer 2

as looking into:
PDO Fetch
it returns an array of the data, not an object as expected.
so, try to
var_dump( $products );
to take a look what it really is...an object or an array.
hope that helps.