Question

我需要获取远程更改的json代码并在php中显示数据当用户加载页面时。（回声）

我有这个代码：（JSON输出：）

{
   "area 267":[
      "city1",
      "city2",
      "city3",
      "city4",
      "city5",
      "city6",
      "city7",
      "city8",
      "city9",
      "city10",
      "city11",
      "city12",
      "city13"
   ],
   "area 268":[
      "city14",
      "city15",
      "city16"
   ],
   "Coords":[
      "31.856128;34.760947",
      "31.8166376;34.729755",
      "31.857223;34.727432",
      "31.843444;34.751793",
      "31.831039;34.722577",
      "31.831504;34.756643",
      "31.817725;34.7223",
      "31.815936;34.752588",
      "31.819054;34.739162",
      "31.824913;34.747459",
      ";",
      "31.813987;34.719103",
      "31.833778;34.74009",
      "31.815936;34.752589",
      "31.819054;34.739163",
      "31.824913;34.747458",
   ],
   "ID":"1405796061262"
}

coords线是所有城市的总和。

我需要像这样回应json：（PHP输出需要像：）

ID: 1405796061262.
Areas: area267, area268.

Citys of Area267: city1, city2, ... city13. (echo all cities in the area)
Citys of Area268: city14, city15, city16. (echo all cities in the area)

我无法了解区域和城市（在JSON文件中）。

感谢您的帮助：）

编辑：工作代码

<?php

$json_data = '{
   "area 267":[
      "city1",
      "city2",
      "city3",
      "city4",
      "city5",
      "city6",
      "city7",
      "city8",
      "city9",
      "city10",
      "city11",
      "city12",
      "city13"
   ],
   "area 268":[
      "city14",
      "city15",
      "city16"
   ],
   "ID":"1405796061262"
}';

$data = json_decode($json_data);
//var_dump($data);
echo 'ID: ';
echo $data->ID;
echo '.<br>';
echo 'Areas: ';

$areas = array();
foreach ($data as $k => $v) {
if (strpos($k, 'ID') !== 0 && strpos($k, 'Coords') !== 0) {
      $areas[] = $k;
}
}

echo implode(', ',$areas).'.<br /><br />';


foreach ($areas as $k => $v) {
      echo "Cities of ".$v.': ';
      $cities = array();
      $cities = null;
      foreach ($data->$v as $area) {
            $cities[] = $area;
      }
      echo implode(', ',$cities).'.<br />';
}

?>

Answer 1

首先你可以使用json_decode将json输出转换为php对象，然后你可以轻松地循环它并获得确切的字段值。

这是文档链接： - http://php.net/manual/en/function.json-decode.php

Answer 2

可能这样的事情应该有效

$data = json_decode($json_data);

echo 'ID '.$data['ID']."<br />";
echo 'Areas: ';

$areas = array();

foreach ($data as $k => $v) {
  if (strpos($k, 'area ') === 0) {
      $areas[] = $k;
  }
}

echo implode(',',$areas).'.<br /><br />';

foreach ($areas as $area) {
   echo "Cities of ".strtoupper($area).':';
   $cities = array();
   foreach ($data[$area] as $city) {
      $cities[] = $city;
   }
   echo implode(','.$cities).'.<br />';
}

需要通过php读取（echo）json

2 个答案: