Попробуйте использовать приложение вызова PayPal на моем веб-сайте, но обнаружены следующие ошибки

Я пробовал большую часть класса, которые доступны в Интернете, но когда я выполняю некоторые ошибки, найденные здесь
——————————— Отправить API счета ————— ————————

Failure
Invalid request parameter: quantity must be in the range 0.001 through 9999.999 → quantity = 0

но я установил это количество = 1, тогда почему он дал эту ошибку … я использовал следующий код

require_once('class.invoice.php');

$ppInv = new PaypalInvoiceAPI("sandbox");       //pass 'live' for actual paypal account

/**
* Populate Data
*/
$aryData['language'] = "en_US";
$aryData['merchantEmail'] = $business;

$aryData['payerEmail'] = "[email protected]";
$aryData['currencyCode'] = "USD";
//$aryData['orderId'] = "0001";
$aryData['orderId'] = strtotime('now');
$aryData['invoiceDate'] = "2014-09-19T05:38:48Z";
$aryData['dueDate'] = "2014-12-31T05:38:48Z";
$aryData['paymentTerms'] = "Net45";   //[DueOnReceipt, DueOnDateSpecified, Net10, Net15, Net30, Net45]
$aryData['discountPercent'] = "0";
$aryData['discountAmount'] = "0";
$aryData['invoiceTerms'] = "These are Inovice Terms and Conditions";
$aryData['invoiceNote'] = "These are Invoice notes";
$aryData['merchantMemo'] = "This is Merchant Memo";
$aryData['shippingAmount'] = "10.00";
$aryData['shippingTaxName'] = "S Tax Name";
$aryData['shippingTaxRate'] = "5.00";
$aryData['logoURL'] = "https://xyx.com/wp-content/uploads/2013/12/logo1.png";

$aryData['merchantFirstName'] = "Ashish";
$aryData['merchantLastName'] = "Sharma";
$aryData['merchantBusinessName'] = "Selling";
$aryData['merchantPhone'] = "";
$aryData['merchantFax'] = "";
$aryData['merchantWebsite'] = "";
$aryData['merchantCustomValue'] = "";

$aryData['merchantLine1'] = "Bhopal";
$aryData['merchantLine2'] = "Merchant Address Line 2";
$aryData['merchantCity'] = "Merchant City";
$aryData['merchantState'] = "Merchant State";
$aryData['merchantPostalCode'] = "462021";
$aryData['merchantCountryCode'] = "IN";

$aryData['billingFirstName'] = "Sam";
$aryData['billingLastName'] = "Peter";
$aryData['billingBusinessName'] = "Shiping";
$aryData['billingPhone'] = "";
$aryData['billingFax'] = "";
$aryData['billingWebsite'] = "";
$aryData['billingCustomValue'] = "";

$aryData['billingLine1'] = "Bhopal";
$aryData['billingLine2'] = "";
$aryData['billingCity'] = "";
$aryData['billingState'] = "";
$aryData['billingPostalCode'] = "462021";
$aryData['billingCountryCode'] = "IN";

$aryData['shippingFirstName'] = "Ashish";
$aryData['shippingLastName'] = "Sharma";
$aryData['shippingBusinessName'] = "Shipping Business Name";
$aryData['shippingPhone'] = "Shipping Phone";
$aryData['shippingFax'] = "Shipping Fax";
$aryData['shippingWebsite'] = "Shipping Website";
$aryData['shippingCustomValue'] = "Shipping Custom Value";

$aryData['shippingLine1'] = "India";
$aryData['shippingLine2'] = "Shipping Line 2";
$aryData['shippingCity'] = "Shipping City";
$aryData['shippingState'] = "Shipping State";
$aryData['shippingPostalCode'] = "Shipping Postal Code";
$aryData['shippingCountryCode'] = "US";

$aryItems[0]['name'] = "Individual Product";
$aryItems[0]['description'] = "Item 1 Description";
$aryItems[0]['date'] = "2014-09-20T05:38:48Z";
$aryItems[0]['quantity'] = "003";
$aryItems[0]['unitprice'] = "1";
$aryItems[0]['taxName'] = "";
$aryItems[0]['taxRate'] = "";

/**
* Create Invoice Task
*/
echo "<br /><br />---------------------------------Send Invoice API-------------------------------------<br /><br />";
$res = $ppInv->doCreateInvoice($aryData, $aryItems);

//    echo "<pre>";
//    print_r($res);
//    echo "</pre>";

if($res['responseEnvelope.ack']== "Success")
{
echo "<br />Success Creating Invoice: '{$res['invoiceID']}'";

echo "<br /><br />---------------------------------Send Invoice API-------------------------------------<br /><br />";

$res_send = $ppInv->doSendInvoice($res['invoiceID']);

//    echo "<pre>";
//    print_r($res_send);
//    echo "</pre>";

if($res_send['responseEnvelope.ack']== "Success")
{
echo "<br />Success Sending Invoice";
}
else
{
//Get Error String
echo $ppInv->formatErrorMessages($res_send);
}
}
else
{
//Get Error String
echo $ppInv->formatErrorMessages($res);
}?>

Это функция

function prepareCreateInvoice($aryData, $aryItems)
{
$aryCreateInvoice = array();

if(trim(@$aryData['language'])!= "")
$aryCreateInvoice['requestEnvelope.errorLanguage']  = $aryData['language'];   //en_US        //TODO
if(trim(@$aryData['merchantEmail'])!= "")
$aryCreateInvoice['invoice.merchantEmail']          = $aryData['merchantEmail'];
if(trim(@$aryData['payerEmail'])!= "")
$aryCreateInvoice['invoice.payerEmail']             = $aryData['payerEmail'];
if(trim(@$aryData['currencyCode'])!= "")
$aryCreateInvoice['invoice.currencyCode']           = $aryData['currencyCode'];   //USD TODO
if(trim(@$aryData['orderId'])!= "")
$aryCreateInvoice['invoice.number']                 = $aryData['orderId'];

if(trim(@$aryData['invoiceID'])!= "")
$aryCreateInvoice['invoiceID']                 = $aryData['invoiceID'];

if(trim(@$aryData['paymentTerms'])!= "")
$aryCreateInvoice['invoice.paymentTerms']           = $aryData['paymentTerms'];   //[DueOnReceipt, DueOnDateSpecified, Net10, Net15, Net30, Net45]
if(trim(@$aryData['discountPercent'])!= "")
$aryCreateInvoice['invoice.discountPercent']        = $aryData['discountPercent'];
if(trim(@$aryData['discountAmount'])!= "")
$aryCreateInvoice['invoice.discountAmount']         = $aryData['discountAmount'];
if(trim(@$aryData['invoiceTerms'])!= "")
$aryCreateInvoice['invoice.terms']                  = $aryData['invoiceTerms'];
if(trim(@$aryData['invoiceNote'])!= "")
$aryCreateInvoice['invoice.note']                   = $aryData['invoiceNote'];
if(trim(@$aryData['merchantMemo'])!= "")
$aryCreateInvoice['invoice.merchantMemo']           = $aryData['merchantMemo'];
if(trim(@$aryData['shippingAmount'])!= "")
$aryCreateInvoice['invoice.shippingAmount']         = $aryData['shippingAmount'];
if(trim(@$aryData['shippingTaxName'])!= "")
$aryCreateInvoice['invoice.shippingTaxName']        = $aryData['shippingTaxName'];
if(trim(@$aryData['shippingTaxRate'])!= "")
$aryCreateInvoice['invoice.shippingTaxRate']        = $aryData['shippingTaxRate'];
if(trim(@$aryData['logoURL'])!= "")
$aryCreateInvoice['invoice.logoUrl']                = $aryData['logoURL'];

if(trim(@$aryData['merchantFirstName'])!= "")
$aryCreateInvoice['invoice.merchantInfo.firstName']     = $aryData['merchantFirstName'];
if(trim(@$aryData['merchantLastName'])!= "")
$aryCreateInvoice['invoice.merchantInfo.lastName']      = $aryData['merchantLastName'];
if(trim(@$aryData['merchantBusinessName'])!= "")
$aryCreateInvoice['invoice.merchantInfo.businessName']  = $aryData['merchantBusinessName'];
if(trim(@$aryData['merchantPhone'])!= "")
$aryCreateInvoice['invoice.merchantInfo.phone']         = $aryData['merchantPhone'];
if(trim(@$aryData['merchantFax'])!= "")
$aryCreateInvoice['invoice.merchantInfo.fax']           = $aryData['merchantFax'];
if(trim(@$aryData['merchantWebsite'])!= "")
$aryCreateInvoice['invoice.merchantInfo.website']       = $aryData['merchantWebsite'];
if(trim(@$aryData['merchantCustomValue'])!= "")
$aryCreateInvoice['invoice.merchantInfo.customValue']   = $aryData['merchantCustomValue'];

if(trim(@$aryData['merchantLine1'])!= "")
$aryCreateInvoice['invoice.merchantInfo.address.line1']         = $aryData['merchantLine1'];
if(trim(@$aryData['merchantLine2'])!= "")
$aryCreateInvoice['invoice.merchantInfo.address.line2']         = $aryData['merchantLine2'];
if(trim(@$aryData['merchantCity'])!= "")
$aryCreateInvoice['invoice.merchantInfo.address.city']          = $aryData['merchantCity'];
if(trim(@$aryData['merchantState'])!= "")
$aryCreateInvoice['invoice.merchantInfo.address.state']         = $aryData['merchantState'];
if(trim(@$aryData['merchantPostalCode'])!= "")
$aryCreateInvoice['invoice.merchantInfo.address.postalCode']    = $aryData['merchantPostalCode'];
if(trim(@$aryData['merchantCountryCode'])!= "")
$aryCreateInvoice['invoice.merchantInfo.address.countryCode']   = $aryData['merchantCountryCode'];

if(trim(@$aryData['billingFirstName'])!= "")
$aryCreateInvoice['invoice.billingInfo.firstName']      = $aryData['billingFirstName'];
if(trim(@$aryData['billingLastName'])!= "")
$aryCreateInvoice['invoice.billingInfo.lastName']       = $aryData['billingLastName'];
if(trim(@$aryData['billingBusinessName'])!= "")
$aryCreateInvoice['invoice.billingInfo.businessName']   = $aryData['billingBusinessName'];
if(trim(@$aryData['billingPhone'])!= "")
$aryCreateInvoice['invoice.billingInfo.phone']          = $aryData['billingPhone'];
if(trim(@$aryData['billingFax'])!= "")
$aryCreateInvoice['invoice.billingInfo.fax']            = $aryData['billingFax'];
if(trim(@$aryData['billingWebsite'])!= "")
$aryCreateInvoice['invoice.billingInfo.website']        = $aryData['billingWebsite'];
if(trim(@$aryData['billingCustomValue'])!= "")
$aryCreateInvoice['invoice.billingInfo.customValue']    = $aryData['billingCustomValue'];

if(trim(@$aryData['billingLine1'])!= "")
$aryCreateInvoice['invoice.billingInfo.address.line1']          = $aryData['billingLine1'];
if(trim(@$aryData['billingLine2'])!= "")
$aryCreateInvoice['invoice.billingInfo.address.line2']          = $aryData['billingLine2'];
if(trim(@$aryData['billingCity'])!= "")
$aryCreateInvoice['invoice.billingInfo.address.city']           = $aryData['billingCity'];
if(trim(@$aryData['billingState'])!= "")
$aryCreateInvoice['invoice.billingInfo.address.state']          = $aryData['billingState'];
if(trim(@$aryData['billingPostalCode'])!= "")
$aryCreateInvoice['invoice.billingInfo.address.postalCode']     = $aryData['billingPostalCode'];
if(trim(@$aryData['billingCountryCode'])!= "")
$aryCreateInvoice['invoice.billingInfo.address.countryCode']    = $aryData['billingCountryCode'];

if(trim(@$aryData['shippingFirstName'])!= "")
$aryCreateInvoice['invoice.shippingInfo.firstName']     = $aryData['shippingFirstName'];
if(trim(@$aryData['shippingLastName'])!= "")
$aryCreateInvoice['invoice.shippingInfo.lastName']      = $aryData['shippingLastName'];
if(trim(@$aryData['shippingBusinessName'])!= "")
$aryCreateInvoice['invoice.shippingInfo.businessName']  = $aryData['shippingBusinessName'];
if(trim(@$aryData['shippingPhone'])!= "")
$aryCreateInvoice['invoice.shippingInfo.phone']         = $aryData['shippingPhone'];
if(trim(@$aryData['shippingFax'])!= "")
$aryCreateInvoice['invoice.shippingInfo.fax']           = $aryData['shippingFax'];
if(trim(@$aryData['shippingWebsite'])!= "")
$aryCreateInvoice['invoice.shippingInfo.website']       = $aryData['shippingWebsite'];
if(trim(@$aryData['shippingCustomValue'])!= "")
$aryCreateInvoice['invoice.shippingInfo.customValue']   = $aryData['shippingCustomValue'];if(trim(@$aryData['shippingLine1'])!= "")
$aryCreateInvoice['invoice.shippingInfo.address.line1']         = $aryData['shippingLine1'];
if(trim(@$aryData['shippingLine2'])!= "")
$aryCreateInvoice['invoice.shippingInfo.address.line2']         = $aryData['shippingLine2'];
if(trim(@$aryData['shippingCity'])!= "")
$aryCreateInvoice['invoice.shippingInfo.address.city']          = $aryData['shippingCity'];
if(trim(@$aryData['shippingState'])!= "")
$aryCreateInvoice['invoice.shippingInfo.address.state']         = $aryData['shippingState'];
if(trim(@$aryData['shippingPostalCode'])!= "")
$aryCreateInvoice['invoice.shippingInfo.address.postalCode']    = $aryData['shippingPostalCode'];
if(trim(@$aryData['shippingCountryCode'])!= "")
$aryCreateInvoice['invoice.shippingInfo.address.countryCode']   = $aryData['shippingCountryCode'];        //US TODO$nLoop = count($aryItems);
for($cnt=0;$cnt<$nLoop;$cnt++)
{
if(trim(@$aryItems[$cnt]['name'])!= "")
$aryCreateInvoice["invoice.itemList.item($cnt).name"]       = $this->adjustStringLength($aryItems[$cnt]['item_name']);
if(trim(@$aryItems[$cnt]['description'])!= "")
$aryCreateInvoice["invoice.itemList.item($cnt).description"]= $this->adjustStringLength($aryItems[$cnt]['item_description']);
#if(trim(@$aryData['$aryItems[$cnt]['date']'])!= "")
#$aryCreateInvoice["invoice.itemList.item($cnt).date"]       = $aryItems[$cnt]['date'];
if(trim(@$aryItems[$cnt]['quantity'])!= "")
$aryCreateInvoice["invoice.itemList.item($cnt).quantity"]   = $this->adjustStringLength($aryItems[$cnt]['item_quantity']);
if(trim(@$aryItems[$cnt]['unitprice'])!= "")
$aryCreateInvoice["invoice.itemList.item($cnt).unitPrice"]  = $this->adjustStringLength($aryItems[$cnt]['item_unitprice']);
if(trim(@$aryItems[$cnt]['taxName'])!= "")
$aryCreateInvoice["invoice.itemList.item($cnt).taxName"]    = $aryItems[$cnt]['taxName'];
if(trim(@$aryItems[$cnt]['taxRate'])!= "")
$aryCreateInvoice["invoice.itemList.item($cnt).taxRate"]    = $aryItems[$cnt]['taxRate'];
}

if(trim(@$aryData['invoiceDate'])!= "")
$aryCreateInvoice['invoice.invoiceDate']            = urldecode($aryData['invoiceDate']);     //2011-12-31T05:38:48Z
if(trim(@$aryData['dueDate'])!= "")
$aryCreateInvoice['invoice.dueDate']                = urldecode($aryData['dueDate']);

//            $reqstr .= "&invoice.invoiceDate={$aryData['invoiceDate']}";
//            $reqstr .= "&invoice.dueDate={$aryData['dueDate']}";

$request_string = http_build_query( $aryCreateInvoice );return $request_string;
}#end of prepareCreateInvoice()