Question

我正在尝试遍历此数组以更改列值：

array
  0 => null
  1 => 
    array
       'condition' => 
         array
          'column' => string 'data' (length=12)
          'operator' => string '=' (length=1)
          'argvalue' => string '442' (length=3)
   2 => 
    array
      'condition' => 
        array
          'column' => string 'start' (length=5)
          'operator' => string '>=' (length=2)
          'argvalue' => string '2013-11-21 00:00:00' (length=19)
   3 => 
    array
      'condition' => 
        array
          'column' => string 'start' (length=5)
          'operator' => string '<=' (length=2)
          'argvalue' => string '2013-11-21 23:59:59' (length=19)
   4 => null

这是我的代码，虽然我可以访问$ secondLevelIndex ['column']但我似乎无法更改该值。

foreach ($created as $firstLevelIndex => $firstLevelArray) {
  foreach ($firstLevelArray as $secondLevelIndex) {
    //echo $secondLevelIndex['column'];
    $created[$firstLevelIndex][$secondLevelIndex]['column'] = 100;
  }
}

任何想法都会受到赞赏。

Answer 1

试试吧。

foreach ($created as $firstLevelIndex => $firstLevelArray) {
  foreach ($firstLevelArray as $secondLevelIndex => $secondLevelArray) {
    //echo $secondLevelIndex['column'];
    $created[$firstLevelIndex][$secondLevelIndex]['column'] = 100;
  }
}

Answer 2

试试这个

foreach ($created as $firstLevelIndex => $firstLevelArray) {
  foreach ($firstLevelArray as $secondLevelIndex => $firstLevelArray) {
    //echo $secondLevelIndex['column'];
    $created[$firstLevelIndex][$secondLevelIndex]['column'] = 100;
  }
}

Answer 3

这样的事情应该有效：

foreach ($created as $firstLevelIndex => $firstLevelArray) {
  foreach ($firstLevelArray as $secondLevelIndex=>$value) {
    //echo $secondLevelIndex['column'];
    $created[$firstLevelIndex][$secondLevelIndex]['column'] = 100;
  }
}

更改多维数组中的值

3 个答案: