使用 $modx->getChunk 模板化片段不返回任何内容

Question

您好，我对这个输出感到困惑，请提出问题所在：

$responsexml = @simplexml_load_string($result, 'SimpleXMLElement', LIBXML_NOCDATA | LIBXML_NOBLANKS);
foreach ($responsexml as $hotelresponse)
 {
    $hotelname = ($hotelresponse->HotelInfo->Name);
    $hoteldestination = ($hotelresponse->HotelInfo->Destination->Name);
    $hotelcategory = ($hotelresponse->HotelInfo->Category);
    $hotelimage = ($hotelresponse->HotelInfo->ImageList->Image[0]->Url);

    $returnedoutput .= $modx->getChunk('_testxmlchunk',array(
        'hotel' => $hotelname,
        'destination' => $hoteldestination,
        'category' => $hotelcategory,
        'image' => $hotelimage,
    ));
      }

return $returnedoutput;

_testxmlchunk 块模板：

<li>this is <b>[[+hotel]]</b> is in <b>[[+destination]]</b> category <b>[[+category]]</b> pic <img src="[[+image]]"/></li>

它只返回空白块模板

这是在类别图片

但是当我执行以下操作时......它可以工作

$responsexml = @simplexml_load_string($result, 'SimpleXMLElement', LIBXML_NOCDATA | LIBXML_NOBLANKS);
foreach ($responsexml as $hotelresponse)
 {
    $hotelname = ($hotelresponse->HotelInfo->Name);
    $hoteldestination = ($hotelresponse->HotelInfo->Destination->Name);
    $hotelcategory = ($hotelresponse->HotelInfo->Category);
    $hotelimage = ($hotelresponse->HotelInfo->ImageList->Image[0]->Url);

    $returnedoutput .= $hotelname.' '.$hotelimage.' '. $hoteldestination.' '.$hotelcategory.';
     }

return $returnedoutput;

任何建议...我错过了什么吗？我想模板化我的 sn-p。

我使用： MODX 革命 2.2.10-pl（高级） mysql 5.5.37-35.0 PHP 版本 5.4.29

Answer 1

我找到了解决方案（已解决）： 我应该在之前设置占位符

$returnedoutput .= $modx->getChunk('_testxmlchunk',array(
        'hotel' => $hotelname,
        'destination' => $hoteldestination,
        'category' => $hotelcategory,
        'image' => $hotelimage,
    ));

或者另一种方法是将对象变量类型转换为字符串而不设置占位符：

$returnedoutput .= $modx->getChunk('_testxmlchunk',array(
'hotel' => (string)$hotelname,
'destination' => (string)$hoteldestination,
'category' => (string)$hotelcategory,
'image' => (string)$hotelimage,
));

这是正确答案：

$responsexml = @simplexml_load_string($result, 'SimpleXMLElement', LIBXML_NOCDATA | LIBXML_NOBLANKS);
foreach ($responsexml as $hotelresponse)
 {
    $hotelname = ($hotelresponse->HotelInfo->Name);
    $hoteldestination = ($hotelresponse->HotelInfo->Destination->Name);
    $hotelcategory = ($hotelresponse->HotelInfo->Category);
    $hotelimage = ($hotelresponse->HotelInfo->ImageList->Image[0]->Url);


    $modx->setPlaceholder('hotel',$hotelname);
    $modx->setPlaceholder('destination',$hoteldestination);
    $modx->setPlaceholder('category',$hotelcategory);
    $modx->setPlaceholder('image',$hotelimage);

    $returnedoutput .= $modx->getChunk('_testxmlchunk',array(
        'hotel' => $hotelname,
        'destination' => $hoteldestination,
        'category' => $hotelcategory,
        'image' => $hotelimage,
    ));


  }
return $returnedoutput;

这里是正确答案2（备选）：

$responsexml = @simplexml_load_string($result, 'SimpleXMLElement', LIBXML_NOCDATA | LIBXML_NOBLANKS);
foreach ($responsexml as $hotelresponse)
 {
    $hotelname = ($hotelresponse->HotelInfo->Name);
    $hoteldestination = ($hotelresponse->HotelInfo->Destination->Name);
    $hotelcategory = ($hotelresponse->HotelInfo->Category);
    $hotelimage = ($hotelresponse->HotelInfo->ImageList->Image[0]->Url);

            /***
             cast the xml object into string, $hotelname variable type is object, you should convert it to string
            ***/
    $returnedoutput .= $modx->getChunk('_testxmlchunk',array(
        'hotel' => (string)$hotelname,
        'destination' => (string)$hoteldestination,
        'category' => (string)$hotelcategory,
        'image' => (string)$hotelimage,
    ));


  }
return $returnedoutput;

Answer 2

无需调用setPlaceholder，您应该可以将占位符直接传递给您已经尝试过的块。

我不确定为什么要将 $hotelresponse 属性设置为变量，或者为什么将属性本身包含在括号中。但是您的代码可以简化为以下内容：

$returnedoutput = '';

$responsexml = @simplexml_load_string($result, 'SimpleXMLElement', LIBXML_NOCDATA | LIBXML_NOBLANKS);
foreach ($responsexml as $hotelresponse) {
    $returnedoutput .= $modx->getChunk('_testxmlchunk', array(
        'hotel' => $hotelresponse->HotelInfo->Name,
        'destination' => $hotelresponse->HotelInfo->Destination->Name,
        'category' => $hotelresponse->HotelInfo->Category,
        'image' => $hotelresponse->HotelInfo->ImageList->Image[0]->Url,
    ));
}

return $returnedoutput;

如果HotelInfo 对象有效，我希望它可以工作。