Answered Invalid argument supplied for foreach()

<?php
// get the order summary
$orderSummary = $modx->runSnippet("checkout1ShowCartContents", array (sumariseOrder => 1));

$url = str_replace($modx->config['base_url'], "", $modx->config['site_url']) . $modx->makeUrl(intval(92));
$hash = md5($_SESSION['purchasers-details']['email']);
$_SESSION['hash'] = $hash;
$orderId = $_SESSION['orderId'];
?>

<?php
// [[customerDetailsInToSESSION]]
// or
// [[customerDetailsInToSESSION? &loginEmail=`[email protected]`]]

if ( empty($_GET['customer']) && empty($loginEmail) ) return "no customer account specified";
else {
	$where = (!empty($loginEmail)) ? "email='" . $loginEmail . "'" : "hash='" . $_GET['customer'] . "'";
	$db_query = $modx->db->select("id, firstName, lastName, phone, email, address1, address2, suburb, city, region, postcode, country, comments, loyaltyPoints", $modx->getFullTableName('customer_details'), $where);
	if ($modx->db->getRecordCount($db_query) > 0) {
		while ($row = $modx->db->getRow($db_query)) {
		     $_SESSION['purchasers-details'] = $row;
		}
	}
	else return false;
}
?>

<?php
// [[orderDetailsInToSESSION]]

if ( empty($_GET['customer']) ) return "no customer account specified";
else {
	// get the details from the orderId
	$db_query = $modx->db->select("productId, quantity", $modx->getFullTableName('customer_order_details'), "orderId='" . $_GET['orderId'] . "'");
	if ($modx->db->getRecordCount($db_query) > 0) {
		while ($row = $modx->db->getRow($db_query)) {
			// get the current prices and names of the products previously ordered
			$document_tvs = $modx->getTemplateVars(array("pagetitle", "price", "specialPrice"), "name", $row['productId']);
			// to put the returned array into a simpler/easier to use array use the following
			foreach ($document_tvs as $document_TV) {
					$docTVArray[$document_TV['name']] = $document_TV['value'];
			}
			// put these details into the session
		   $_SESSION['shoppingCartContents'][] = Array (
			   'productId' => $row['productId'],
			   'productTitle' => $docTVArray['pagetitle'],
			   'price' => ( !empty($docTVArray['specialPrice']) ) ? $docTVArray['specialPrice'] : $docTVArray['price'],
			   'quantity' => $row['quantity']
		   );
		}
	}

}
?>

	foreach ($document_tvs as $document_TV) {
	$docTVArray[$document_TV['name']] = $document_TV['value'];
	}

<!--?php
// [[orderDetailsInToSESSION]]

if ( empty($_GET['customer']) ) return "no customer account specified";
else {
	// get the details from the orderId
	$db_query = $modx--->db->select("productId, quantity", $modx->getFullTableName('customer_order_details'), "orderId='" . $_GET['orderId'] . "'");
	if ($modx->db->getRecordCount($db_query) > 0) {
		while ($row = $modx->db->getRow($db_query)) {
			// get the current prices and names of the products previously ordered
			$document_tvs = $modx->getTemplateVars(array("pagetitle", "price", "specialPrice"), "name", $row['productId']);
			// to put the returned array into a simpler/easier to use array use the following
			foreach ($document_tvs as $document_TV) {
					$docTVArray[$document_TV['name']] = $document_TV['value'];
			}
			// put these details into the session
		   $_SESSION['shoppingCartContents'][] = Array (
			   'productId' => $row['productId'],
			   'productTitle' => $docTVArray['pagetitle'],
			   'price' => ( !empty($docTVArray['specialPrice']) ) ? $docTVArray['specialPrice'] : $docTVArray['price'],
			   'quantity' => $row['quantity']
		   );
		}
	}

}
?>