如何通过一个数组在php循环数组内

Question

这里的阵列结构（只有数组中的第一个元素）：

Array 
(
    [1] => Array 
     (
      [pageid] => 1 
      [step_order] => 1 
      [pageurl] => http://www.domain.com/ 
      [in_links] => Array 
       (
        [domains] => Array 
         (
          [Direct Entry] => 1520 
          [www.google.com] => 387 
          [www.google.co.in] => 14 
          [search.yahoo.com] => 10 
          [All other] => 27 
         ) 

        [impressions] => Array 
         (
          [Direct Entry] => Array 
           (
            [0] => 10654 
            [1] => 10728 
            [2] => 10772 
           ) 

          [www.google.com] => Array 
           (
            [0] => 10991 
            [1] => 12455 
            [2] => 12466 
            [3] => 10757 
           ) 

          [www.google.co.in] => Array 
           (
            [0] => 9839 
            [1] => 9837 
            [2] => 9845 
           ) 

          [search.yahoo.com] => Array 
           (
            [0] => 12087 
            [1] => 10864 
           ) 

         ) 

       ) 

      [out_links] => Array 
       (
        [domain] => Array 
         (
          [Left site] => 1752 
          [http://www.domain.com/#] => 102 
          [http://www.domain.com/contact] => 102 
          [http://www.domain.com/#basic_inline_div] => 2 
         ) 

        [impressions] => Array 
         (
          [Left site] => Array 
           (
            [0] => 7680 
            [1] => 9728 
            [2] => 10496 
           ) 

          [http://www.domain.com/#] => Array 
           (
            [0] => 259 
            [1] => 11013 
           ) 

          [http://www.domain.com/contact] => Array 
           (
            [0] => 12802 
            [1] => 10757 
           ) 

          [http://www.domain.com/#basic_inline_div] => Array 
           (
            [0] => 11 
            [1] => 51 
           ) 

         ) 

       ) 

      [visitors] => 1958 
     ) 
) 

我试图循环等待来自域，印象中的元素（和子元素）。我设法得到了第一部分：pageid，step_order，page_url。我在in_links和out_links及其子数组中遇到了问题。任何人都有关于如何提取这些数据的想法？

Answer 1

以下是您如何从in_links获取域名的方法。其他类似（但我不确定印象子数组中的索引代表什么）。

foreach ($array as $element) { 
    foreach ($element['in_links']['domains'] as $domain => $count) { 
    echo "Domain: $domain, Count: $count\n"; 
    } 
}