通过JSON文件从rome2rio API提取数据

我试图从rome2rio（API http://www.rome2rio.com/documentation/search）中提取数据。他们让我有可能从服务器上的JSON或XML文件中获取详细信息。 JSON的输出是这样的：通过JSON文件从rome2rio API提取数据

{ 
 
    "agencies": 
 
    [{ 
 
    "code":  "SWISSRAILWAYS", 
 
    "name":  "Swiss Railways (SBB/CFF/FFS)", 
 
    "url":  "http://www.sbb.ch" 
 
    "iconPath": "/logos/trains/ch.png", 
 
    "iconSize": "27,23", 
 
    "iconOffset": "0,0" 
 
    ]}, 
 
    "routes": 
 
    [{ 
 
    "name":  "Train", 
 
    "distance": 95.92, 
 
    "duration": 56, 
 
    "stops": 
 
     [{ 
 
     "name": "Bern", 
 
     "pos": "46.94926,7.43883", 
 
     "kind": "station" 
 
     },{ 
 
     "name": "ZÃ¼rich HB", 
 
     "pos": "47.37819,8.54019", 
 
     "kind": "station" 
 
     }], 
 
    "segments": 
 
     [{ 
 
     "kind":  "train", 
 
     "subkind":  "train", 
 
     "isMajor": 1, 
 
     "distance": 95.92, 
 
     "duration": 56, 
 
     "sName": "Bern", 
 
     "sPos":  "46.94938,7.43927", 
 
     "tName": "ZÃ¼rich HB", 
 
     "tPos":  "47.37819,8.54019", 
 
     "path":  "{wp}Gu{[email protected]@uVo|AqiDyoBhUibDeiDc`[email protected]", 
 
     "indicativePrice":{ 
 
     "price":45, 
 
     "currency":"USD", 
 
     "isFreeTransfer":0, 
 
     "nativePrice":40, 
 
     "nativeCurrency":"CHF" 
 
     }, 
 
     "itineraries": 
 
     [{ 
 
     "legs": 
 
      [{ 
 
      "url": "http://fahrplan.sbb.ch/bin/query.exe/en...", 
 
      "hops": 
 
      [{ 
 
      "distance": 95.92, 
 
      "duration": 56, 
 
      "sName":  "Bern", 
 
      "sPos":  "46.94938,7.43927", 
 
      "tName":  "ZÃ¼rich HB", 
 
      "tPos":  "47.37819,8.54019", 
 
      "frequency": 400, 
 
      "indicativePrice":{ 
 
       "price":45, 
 
       "currency":"USD", 
 
       "isFreeTransfer":0, 
 
       "nativePrice":40, 
 
       "nativeCurrency":"CHF" 
 
      }, 
 
      "lines": 
 
       [{ 
 
       "name":  "", 
 
       "vehicle": "train", 
 
       "agency": "SWISSRAILWAYS", 
 
       "frequency": 400, 
 
       "duration": 57, 
 
       }] 
 
      }] 
 
      }] 
 
     }] 
 
     }] 
 
    }] 
 
    }] 
 
}

我想通过PHP提取 '段' 的数据，并使用此代码：

<?php 
 
$url = 'http://free.rome2rio.com/api/1.2/json/Search?key=vwiC3pvW&oName=Germany&dName=Yemen'; 
 
$content = file_get_contents($url); 
 
$json = json_decode($content, true); 
 
?> 
 

 
<html> 
 
<head> 
 
<style> 
 
section {height:500px; width:1000px; color:red;} 
 
</style> 
 

 

 
</head> 
 
<body> 
 
<section> 
 

 
<?php 
 

 
\t foreach($json as $i){ 
 
\t \t \t echo "$i[segments]</br>"; 
 
\t \t \t } 
 
?> 
 
    
 
</section> 
 
</body> 
 
<

当我执行代码我得到这个结果：

Notice: Undefined index: segments in C:\xampp\htdocs\worldmap\test.php on line 21 
 

 

 
Notice: Undefined index: segments in C:\xampp\htdocs\worldmap\test.php on line 21 
 

 

 
Notice: Undefined index: segments in C:\xampp\htdocs\worldmap\test.php on line 21 
 

 

 
Notice: Undefined index: segments in C:\xampp\htdocs\worldmap\test.php on line 21 
 

 

 
Notice: Undefined index: segments in C:\xampp\htdocs\worldmap\test.php on line 21 
 

 

 
Notice: Undefined index: segments in C:\xampp\htdocs\worldmap\test.php on line 21

预先感谢任何形式的帮助！

来源

2014-10-16 Rezin

我不从哪里是“分段”指数知道..但是你可以试试这个：

<?php foreach($json as $segment => $i):?> 
    <h3><?php echo $segment ?></h3> 
    <?php foreach($i as $index => $value): ?> 
    <p><?php echo $index.": ".$value ?></p> 
    <?php endforeach; ?> 
<?php endforeach; ?>

或者你可以使用Itinaretor ......我认为这是一个更好的solucion ..

$iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($json)); 
foreach($iterator as $key => $value) { 
    echo "<p>$key => $value</p>"; 
}

参考：PHP foreach() with arrays within arrays?

来源

2014-10-16 17:17:54 giordanolima

谢谢！ '迭代器'工作得很好。 – Rezin 2014-10-16 17:54:44

有没有可能做s.th.喜欢这个？ 'code' $ iterator = new RecursiveIteratorIterator（new'code' RecursiveArrayIterator（$ json））; \t foreach（$ iterator as $ key => $ value）{ \t \t echo array_search（“price”，$ json，true）; } 'code' – Rezin 2014-10-16 18:46:45

如果你想得到东西的价格使用这个：if（$ key =='price'）echo“Price：”。$ value; – giordanolima 2014-10-16 18:54:57

通过JSON文件从rome2rio API提取数据

回答

相关问题