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博客列表 >第十二课 数组循环

第十二课 数组循环

清风King
清风King原创
2021年10月10日 17:56:49482浏览

1.循环省、市、区数组

  1. <?php
  2. // 导入省市区数组
  3. include_once 'arr.php';
  5. foreach ($arr as $keyProvince => $province) {
  6.     echo $province['area_name'] . '<br>';
  7.     foreach ($province['son'] as $keyCity => $city) {
  8.         echo '----' . $city['area_name'] . '<br>';
  9.         foreach ($city['son'] as $keyCity => $area) {
  10.             echo '----' . '----' . '----' . $area['area_name'] . '<br>';
  11.         }
  12.     }
  13. }

结果：

2. 用 echo 输出单个值，用print_r()打印其中一个城市和区

  2. // 用echo打印数组中的“北京”
  3. echo $arr[0]['area_name'];

结果：北京

  1. //用print_r()打印唐山市城市和区
  2. print_r($arr[2]['son'][1]);

结果：

  1. [area_id] => 130200
  2. [area_pid] => 130000
  3. [area_name] => 唐山市
  4. [lng] => 118.175
  5. [lat] => 39.6351
  6. [son] => Array
  7.     (
  8.         [0] => Array
  9.             (
  10.                 [area_id] => 130284
  11.                 [area_pid] => 130200
  12.                 [area_name] => 滦州市
  13.                 [lng] => 
  14.                 [lat] => 
  15.             )
  17.         [1] => Array
  18.             (
  19.                 [area_id] => 130202
  20.                 [area_pid] => 130200
  21.                 [area_name] => 路南区
  22.                 [lng] => 118.154
  23.                 [lat] => 39.625
  24.             )
  26.         [2] => Array
  27.             (
  28.                 [area_id] => 130203
  29.                 [area_pid] => 130200
  30.                 [area_name] => 路北区
  31.                 [lng] => 118.201
  32.                 [lat] => 39.6244
  33.             )
  35.         [3] => Array
  36.             (
  37.                 [area_id] => 130204
  38.                 [area_pid] => 130200
  39.                 [area_name] => 古冶区
  40.                 [lng] => 118.458
  41.                 [lat] => 39.7199
  42.             )
  44.         [4] => Array
  45.             (
  46.                 [area_id] => 130205
  47.                 [area_pid] => 130200
  48.                 [area_name] => 开平区
  49.                 [lng] => 118.262
  50.                 [lat] => 39.6713
  51.             )
  53.         [5] => Array
  54.             (
  55.                 [area_id] => 130207
  56.                 [area_pid] => 130200
  57.                 [area_name] => 丰南区
  58.                 [lng] => 118.113
  59.                 [lat] => 39.5648
  60.             )
  62.         [6] => Array
  63.             (
  64.                 [area_id] => 130208
  65.                 [area_pid] => 130200
  66.                 [area_name] => 丰润区
  67.                 [lng] => 118.13
  68.                 [lat] => 39.8244
  69.             )
  71.         [7] => Array
  72.             (
  73.                 [area_id] => 130209
  74.                 [area_pid] => 130200
  75.                 [area_name] => 曹妃甸区
  76.                 [lng] => 118.46
  77.                 [lat] => 39.2731
  78.             )
  80.         [8] => Array
  81.             (
  82.                 [area_id] => 130223
  83.                 [area_pid] => 130200
  84.                 [area_name] => 滦县
  85.                 [lng] => 118.703
  86.                 [lat] => 39.7406
  87.             )
  89.         [9] => Array
  90.             (
  91.                 [area_id] => 130224
  92.                 [area_pid] => 130200
  93.                 [area_name] => 滦南县
  94.                 [lng] => 118.674
  95.                 [lat] => 39.5039
  96.             )
  98.         [10] => Array
  99.             (
  100.                 [area_id] => 130225
  101.                 [area_pid] => 130200
  102.                 [area_name] => 乐亭县
  103.                 [lng] => 118.912
  104.                 [lat] => 39.4256
  105.             )
  107.         [11] => Array
  108.             (
  109.                 [area_id] => 130227
  110.                 [area_pid] => 130200
  111.                 [area_name] => 迁西县
  112.                 [lng] => 118.316
  113.                 [lat] => 40.1459
  114.             )
  116.         [12] => Array
  117.             (
  118.                 [area_id] => 130229
  119.                 [area_pid] => 130200
  120.                 [area_name] => 玉田县
  121.                 [lng] => 117.739
  122.                 [lat] => 39.9005
  123.             )
  125.         [13] => Array
  126.             (
  127.                 [area_id] => 130281
  128.                 [area_pid] => 130200
  129.                 [area_name] => 遵化市
  130.                 [lng] => 117.964
  131.                 [lat] => 40.1874
  132.             )
  134.         [14] => Array
  135.             (
  136.                 [area_id] => 130283
  137.                 [area_pid] => 130200
  138.                 [area_name] => 迁安市
  139.                 [lng] => 118.701
  140.                 [lat] => 39.9983
  141.             )
  143.     )
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