Question

我目前正在尝试解析MapQuest Traffic API，但是当我尝试显示事件时，没有任何内容出现，如果我在php中执行“if empty”，则返回空。

以下是代码：

    <?php
    $mysongs = simplexml_load_file("http://www.mapquestapi.com/traffic/v1/incidents?key=Fmjtd%7Cluuan1u2nh%2C2a%3Do5-96rw5u&callback=handleIncidentsResponse&boundingBox=$_GET[a], $_GET[b], $_GET[c], $_GET[d]&filters=construction,incidents&inFormat=kvp&outFormat=xml");
echo $mysongs->Incidents[0]->Incident[0]->fullDesc;
?>

我传递的参数：？a = 33.352532499999995＆amp; b = -118.2324383＆amp; c = 34.352532499999995＆amp; d = -117.2324383。

提前致谢！

Answer 1

这里simplexml_load_file没有加载你所有的xml数据所以，我创建了一个名为test.xml的xml文件，然后从test.xml加载了数据。现在，您可以打印所需的数据。

<?php


  $a = $_GET['a'];
  $b = $_GET['b'];
  $c = $_GET['c'];
  $d = $_GET['d'];

   $xml_feed_url = 'http://www.mapquestapi.com/traffic/v1/incidents?key=Fmjtd|luuan1u2nh%2C2a%3Do5-96rw5u&callback=handleIncidentsResponse&boundingBox='.$a.','.$b.','.$c.','.$d.'&filters=construction,incidents&inFormat=kvp&outFormat=xml';
   $ch = curl_init();
   curl_setopt($ch, CURLOPT_URL, $xml_feed_url);
   curl_setopt($ch, CURLOPT_HEADER, false);
   curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
   $xml = curl_exec($ch);
   curl_close($ch);


            $xml2 = new SimpleXMLElement($xml); 

            $xml2->asXML("test.xml");
            $xml2->asXML();

    $mysongs = simplexml_load_file("test.xml"); 
    print_r($mysongs);      
?>

使用SimpleXML解析XML不会返回任何内容

1 个答案: