PHP如何回显3-Dim数组

问题描述：

After searching for an answer in this forum I found only related questions but under other context that would not apply to my case. Here's my problem:

I have a 3-dim array defined in a function like this:

$m_Array[h][$family][$iterator]

the values for

$family range from 6-10;

$iterator from 0-3 but has duplicates (0,1,2,3,1),

and the  $m_Array results in values (25,26,30,31,33).

I am unable to echo the result using those indices to get these results once returned from the function. NOTE: I was able to echo when I had 2-dim $m_Array[h][$iterator] but could not use it because the last value for the iterator would replace the second in the array. Since I was able to echo the 2-dim, this is not a question on getting the return from the function or iterate over the indices. Thanks.

在此论坛中搜索答案后，我发现只有相关问题但在其他情况下不适用于我的案例。这是我的问题： p>

我在这样的函数中定义了一个3-dim数组： p>

  $ m_Array [h] [$  family] [$ iterator] 
  code>  pre> 
 
   p> 
 
 
  $ family的值范围为6-10; 
  
 $ 0来自0-3但有重复项（0,1,2,3,1），
 
和$ m_Array会产生值（25,26,30,31,33）。
  code  >  pre> 
 
 我无法使用这些索引回显结果，一旦从函数返回就得到这些结果。
注意：当我有2-dim $ m_Array时，我能够回显[h  ] [$ iterator]但是无法使用它，因为迭代器的最后一个值将替换数组中的第二个。
因为我能够回显2-dim，这不是从函数返回的问题或 迭代索引。
谢谢。 p> 
  div>

答

as others mentioned, you can use var_dump() or print_r(). If you need to access each item then you're going to need nested loops.

foreach($m_Array as $i => $h)
{
     //echo $i, $key for h
     foreach($h as $j => $family)
     {
          //echo $j, key for family
          foreach($family as $k => $iterator)
          {
                echo $iterator;
          }
     }
}

答

Use print_r($arrayName) to print an array. You cannot echo an Array or Object

答

try this:

$keys = array_keys($h);
for($i = 0; $i < count($h); $i++) {
    echo $keys[$i] . "{<br>";
    foreach($h[$keys[$i]] as $key => $value) {
        echo $key . " : " . $value . "<br>";
    }
    echo "}<br>";
}

It prints all values and keys

PHP如何回显3-Dim数组

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