检查多个数组中是否存在密钥

Question

mysql结果是以下数组

Array
(
  [0] => Array
      (
          [customs_tariff_number] => 
      )

  [1] => Array
      (
          [customs_tariff_number] => 
      )

  [2] => Array
      (
          [customs_tariff_number] => 
      )

  [3] => Array
      (
          [customs_tariff_number] => 123456789
      )
)

我的密钥[customs_tariff_number]不是空的我想做一个if条件来绘制像这样的桌子

if (in_array('customs_tariff_number', $array)) {
  echo '<tr>rowname</tr>';
}

但它不起作用。

Answer 1

您可以使用array_walk_recursive

尝试此操作

     function check($value, $key){
    if($key === 'customs_tariff_number'){
         echo '<tr>rowname</tr>';
    }
}

array_walk_recursive($a, 'check');