如何计算放入foreach循环的多维数组(在php中)

Question

如何对foreach循环中的数组进行计数?另外，这是编写代码的最佳方式吗?还是有更多的包罗万象?我有一个三维数组(3层)。

下面是print_r

中的示例

Array
(
[0] => Array
   (
        [0] => 17
        [audit_inspectionID] => 17
        [1] => 2016-08-15
        [created] => 2016-08-15
        [2] => 2016-08-15 09:52:28
        [modified] => 2016-08-15 09:52:28
        [class_answer] => Array
            (
                [0] => Needs Improvement     
                [1] => Need To Correct     
                [2] => Needs Immediate Action     
            )
   )
)

下面是PHP代码:

$newArray = [];
foreach($requirements as $key => $value){
    $newArray[] = $value['audit_inspectionID'];
    $newArray[] = $value['requirement'];
    $newArray[] = $value['class_answer'];
    $newArray[] = $value['repeat_answer'];
    $newArray[] = $value['class_answer'];
    $newArray[] = $value['actionID'];
    $newArray[] = $value['action_link'];
    print "<div id='inspection_view" . $value['audit_inspectionID'] . "' style='display:inline'>
        <table id='actions_table' class='table table-bordered table-condensed table-striped bg-info'>
          <thead>
              <th align='center'>" . value['requirement'] . " </th>
              ". if ($corporate_admin == 'true') { ."
                <a id='" . $value['audit_inspectionID'] . "' class='btn btn-danger  pull-right remove1' href=' + '#' + '>Remove</a><a id='edit" . $value['audit_inspectionID'] ."' class='btn btn-warning pull-right edit1' href=#>Edit</a></th>
              ". } ."
              </thead><tbody>
              <tr>
                  <td>

for循环如何计数这个数组?

                 ". for (x = 0; x< count($value[class_answer]) ; x++){ 
                      $value[class_answer] 
                  } ."
                  <br>
                  ". $value[repeat_answer] ."
                  <br>
                  ". if ($value[actionID] != 0) { 
                    $value[action_link]
                  } ."
                  </td>
              </tr>
            </tbody>
        </table>
        </div>";/**/
}

Answer 1

不能在print语句中放入for或if等其他语句。结束print语句，然后使用一个新语句执行所需操作。

print "<div id='inspection_view" . $value['audit_inspectionID'] . "' style='display:inline'>
    <table id='actions_table' class='table table-bordered table-condensed table-striped bg-info'>
          <th align='center'>" . value['requirement'] . " </th>
          <tr>
              <td>";
foreach ($value['class_answer'] as $ans) {
    print "$ans ";
}
print "<br>
      ".$value[repeat_answer]."
      <br>";
if ($value['actionID'] != 0) {
    print $value['action_link'];
}
print "</td>
          </tr>
        </tbody>
    </table>
    </div>";

Answer 2

您可以运行语句并稍后打印出来。我会这样做

print "<div id='inspection_view" . $value['audit_inspectionID'] . "' style='display:inline'>
    <table id='actions_table' class='table table-bordered table-condensed table-striped bg-info'>
          <th align='center'>" . value['requirement'] . " </th>
          <tr>
              <td>";
          $count=0;
          for (x = 0; x< count($value[class_answer]) ; x++){ 
              $count++; 
          }
print "<br>". $value[repeat_answer] ."<br>";
          if ($value[actionID] != 0) { 
              print $value[action_link];
           }
                  print "</td>
              </tr>
            </tbody>
        </table>
        </div>";

$value[class_answer]中的元素个数为$count

print $count