Question

我有来自数据库

的值的数组

$values = $sql->fetchAll();

看起来像这样：

var_dump($values);

array (size=4)
  0 => 
    array (size=4)
      'id' => string '1' (length=1)
      0 => string '1' (length=1)
      'level' => string '0' (length=1)
      1 => string '0' (length=1)
  1 => 
    array (size=4)
      'id' => string '2' (length=1)
      0 => string '2' (length=1)
      'level' => string '3' (length=1)
      1 => string '3' (length=1)
  2 => 
    array (size=4)
      'id' => string '3' (length=1)
      0 => string '3' (length=1)
      'level' => string '0' (length=1)
      1 => string '0' (length=1)

我要做的是将级别更改为例如5，其中player id = 3.我需要更改两个级别相关的值。数字或数组键及其位置可能因SQL查询而异。我需要具有以下参数的函数：$ playerID，$ keyName，$ value然后它将改变适当的值。

例如：

function($playerID, $keyName, $value);
function(3, "level", 5);

更改后的数组如下所示：

array (size=4)
  0 => 
    array (size=4)
      'id' => string '1' (length=1)
      0 => string '1' (length=1)
      'level' => string '0' (length=1)
      1 => string '0' (length=1)
  1 => 
    array (size=4)
      'id' => string '2' (length=1)
      0 => string '2' (length=1)
      'level' => string '3' (length=1)
      1 => string '3' (length=1)
  2 => 
    array (size=4)
      'id' => string '3' (length=1)
      0 => string '3' (length=1)
      'level' => string '5' (length=1)
      1 => string '5' (length=1)

Answer 1

尝试这样的事情：

    function changeVal($values, $playerID, $keyName, $value)
    {
        foreach($values as $key => $val)
       {
           if ($val['id'] == $playerID)
           {
             $values[$key][$keyName] = $value;
             $index = array_search($keyName, array_keys($values))+1;
             $values[$key][$index] = $value;
           }
        }
    }

 changeVal($values , 3, "level", 5);

Answer 2

PHP＆gt; = 5.5.0

function changeRow(&$rows, $playerID, $keyName, $value) {
    $key = array_search($playerID, array_column($rows, 'id'));
    $rows[$key][$keyName] = $value;
}

changeRow($values, 3, 'level', 5);

PHP函数用于从数据库更改数组中的值

2 个答案: