PHP Payment Gateway Transaction Errors - php

Question

I keep getting get the following 2 errors which I do not know how to fix
Fatal error: Uncaught exception 'InvalidArgumentException' with message 'invalid keys: lineItems[ in C:\wamp64\www\pay\braintree\lib\Braintree\Util.php on line 351
And
InvalidArgumentException: invalid keys: lineItems[ in C:\wamp64\www\pay\braintree\lib\Braintree\Util.php on line 351
This is line 351 throw new InvalidArgumentException('invalid keys: ' . $sortedList); from the code below.
public static function verifyKeys($signature, $attributes)
{
$validKeys = self::_flattenArray($signature);
$userKeys = self::_flattenUserKeys($attributes);
$invalidKeys = array_diff($userKeys, $validKeys);
$invalidKeys = self::_removeWildcardKeys($validKeys, $invalidKeys);
if(!empty($invalidKeys)) {
asort($invalidKeys);
$sortedList = join(', ', $invalidKeys);
throw new InvalidArgumentException('invalid keys: ' . $sortedList);
}
}
Here is the first of my two functions that seem to cause the errors
function payment_data($gateway, $order_id){
try{
$account_number = account_number();
$total_amount = total_amount();
$credit_cards = $gateway->customer()->find($account_number);
$members_first_name = $credit_cards->firstName;
$members_last_name = $credit_cards->lastName;
$members_email = $credit_cards->email;
if(!empty($credit_cards)){
foreach($credit_cards->creditCards as $c){
if($c->default === true){
$first_name = $c->billingAddress->firstName;
$last_name = $c->billingAddress->lastName;
$street_address = $c->billingAddress->streetAddress;
$extended_address = $c->billingAddress->extendedAddress;
$city = $c->billingAddress->locality;
$region = $c->billingAddress->region;
$postal_code = $c->billingAddress->postalCode;
$country_name = $c->billingAddress->countryName;
$card_token = $c->token;
$customer_id = $c->customerId;
if(empty($extended_address)){
$extended_address = null;
}
if(empty($region)){
$region = null;
}
$result = $gateway->transaction()->sale([
'amount' => $total_amount,
'orderId' => $order_id,
'customerId' => $customer_id,
'customer' => [
'firstName' => $members_first_name,
'lastName' => $members_last_name,
'email' => $members_email
],
'billing' => [
'firstName' => $first_name,
'lastName' => $last_name,
'streetAddress' => $street_address ,
'extendedAddress' => $extended_address,
'countryName' => $country_name,
'locality' => $city,
'region' => $region,
'postalCode' => $postal_code
],
'shipping' => [
'firstName' => $first_name,
'lastName' => $last_name,
'streetAddress' => $street_address ,
'extendedAddress' => $extended_address,
'countryName' => $country_name,
'locality' => $city,
'region' => $region,
'postalCode' => $postal_code
],
'lineItems' => [
products($order_id)
],
'options' => [
'submitForSettlement' => true
]
]);
}
}
}
} catch (Braintree_Exception_NotFound $e) {
return false;
}
}
Here is my second function
function products($order_id){
if(products('Now') !== false){
$total = count(products('Now'));
$x = 1;
$line_items = '';
foreach(products('Now') as $product){
$title = $product['title'];
$quantity = $product['quantity'];
$sales_tax = $product['sales_tax'];
$regular_price = $product['regular_price'];
$total_sales_tax = $product['total_sales_tax'];
$total_amount = $product['total_amount'];
$savings_price = $product['savings_price'];
$product_id = $product['product_id'];
$line_items .= "[";
$line_items .= "'name' => '" . $title . "',";
$line_items .= "'description' => 'Product',";
$line_items .= "'quantity' => '" . $quantity . "',";
$line_items .= "'unitTaxAmount' => '" . $sales_tax . "',";
$line_items .= "'unitAmount' => '" . $regular_price . "',";
$line_items .= "'taxAmount' => '" . $total_sales_tax . "',";
$line_items .= "'totalAmount' => '" . $total_amount . "',";
$line_items .= "'discountAmount' => '" . $savings_price . "',";
$line_items .= "'productCode' => '" . $product_id . "',";
$line_items .= "'kind' => 'debit',";
$line_items .= "'url' => 'http://localhost/product.php?id=" . $product_id . "'";
if($x !== $total){
$line_items .= "],";
} else {
$line_items .= "]";
}
$x++;
}
return $line_items;
}
}

Answer 1

I'm guessing you need something more like this, I've used Braintree a bit and I've never passed it a big string of data like that.
function products($order_id){
if(products('Now') !== false){
$total = count(products('Now'));
$line_items = Array();
foreach(products('Now') as $product){
$title = $product['title'];
$quantity = $product['quantity'];
$sales_tax = $product['sales_tax'];
$regular_price = $product['regular_price'];
$total_sales_tax = $product['total_sales_tax'];
$total_amount = $product['total_amount'];
$savings_price = $product['savings_price'];
$product_id = $product['product_id'];
$line_item = Array();
$line_item['name'] = $title;
$line_item['description'] = 'Product';
$line_item['quantity'] = $quantity;
$line_item['unitTaxAmount'] = $sales_tax;
$line_item['unitAmount'] = $regular_price;
$line_item['taxAmount'] = $total_sales_tax;
$line_item['totalAmount'] = $total_amount;
$line_item['discountAmount'] = $savings_price;
$line_item['productCode'] = $product_id;
$line_item['kind'] = 'debit';
$line_item['url'] = 'http://localhost/product.php?id=' . $product_id;
$line_items[] = $line_item;
}
return $line_items;
}
}