Question

我正在编写一个亚马逊MWS脚本，需要包含多个PHP文件并运行这些文件中包含的函数。

每个函数都可以从各自的PHP文件中运行，但只运行第一个函数。第二个函数，无论我使用什么顺序，都会对我传递的参数抛出致命错误。

致命错误：未捕获的异常＆＃39;异常＆＃39;消息＆＃39;无法根据提供的数据构建。请务必通过关联数组或DOMElement＆＃39;

以下是我尝试运行的前两个函数：

// Initialize and run ListInboundShipments.
require_once 'ListInboundShipments.php';
// Set status array and timeframe criteria for filtering shipments
$shipmentStatusList = new FBAInboundServiceMWS_Model_ShipmentStatusList();
$shipmentStatusList->setMember(array('WORKING','SHIPPED','IN_TRANSIT','DELIVERED','CHECKED_IN','RECEIVING','CLOSED','CANCELLED','DELETED','ERROR'));
$updatedAfter = date('Y-m-d', mktime(0, 0, 0, date("m")-1, date("d"),   date("Y")));
$updatedBefore = date('Y-m-d');

// Pass filter criteria into $request array
$request->setShipmentStatusList($shipmentStatusList);
$request->setLastUpdatedAfter($updatedAfter);
$request->setLastUpdatedBefore($updatedBefore);

// Create XML document of shipments.
$shipmentXML = invokeListInboundShipments($service, $request);

// Parse the new XML document.
$shipments = new SimpleXMLElement($shipmentXML);
$shipmentArray = array();
foreach ($shipments->ListInboundShipmentsResult->ShipmentData->member as $member) {
    // Create array of all shipments.
    $shipmentArray[] = array(
        "ShipmentId"=>$member->ShipmentId,
        "ShipmentStatus"=>$member->ShipmentStatus
    );
}

// Destroy variables to get a clean slate.
unset($service); unset($request);

// Save token and run through ListInboundShipmentsByNextToken until
// it does not return a token.
$token = (string)$shipments->ListInboundShipmentsResult->NextToken;
while ($token != null) {
    require_once 'ListInboundShipmentsByNextToken.php';
    $request->setNextToken($token);
    echo print_r($request);

    // Create new XML document.
    $shipmentXML = invokeListInboundShipmentsByNextToken($service, $request);
    $shipments = new SimpleXMLElement($shipmentXML);

    // Use XML document to create array of all shipments.
    foreach ($shipments->ListInboundShipmentsResult->ShipmentData->member as $member) {
        $shipmentArray[] = array(
            "ShipmentId"=>$member->ShipmentId,
            "ShipmentStatus"=>$member->ShipmentStatus
        );
    }
    $token = $shipments->ListInboundShipmentsResult->NextToken;
}

echo print_r($request)语句向我显示$request确实是一个关联数组。我想也许错误是由冲突的变量引起的（每个函数都使用$ request和$ service），所以我尝试在调用它们之间使用unset()。

Answer 1

请勿在{{1}}循环中使用require_once。它只在第一次循环时执行文件。第二次，它意识到文件已经执行，因此它不会再次执行。请改用while。

require

对于需要重复执行的代码使用包含文件，这是不寻常的设计。通常，您只需在包含文件中定义函数，或使用它们初始化全局变量（例如数据库参数）。所以通常的方法是在include文件中定义一个函数，然后每次通过循环调用该函数，而不是将文件包含在循环中。

如何在一个PHP脚本中包含和调用多个函数？

1 个答案: