检查 PHP 多维数组中是否存在数组值

我有以下多维数组：

Array ( [0] => Array 
         ( [id] => 1 
           [name] => Jonah 
           [points] => 27 )
        [1] => Array 
         ( [id] => 2 
           [name] => Mark 
           [points] => 34 )
      )

我目前正在使用foreach循环从数组中提取值：

foreach ($result as $key => $sub)
{
    ...
}

但我想知道如何查看数组中的值是否已存在。

例如，如果我想向数组中添加另一组，但 id 是1（所以这个人是 Jonah）并且他们的分数是 5，我可以将 5 添加到已创建的数组值中吗id 0而不是创建一个新的数组值？

因此，循环完成后，数组将如下所示：

Array ( [0] => Array 
         ( [id] => 1 
           [name] => Jonah 
           [points] => 32 )
        [1] => Array 
         ( [id] => 2 
           [name] => Mark 
           [points] => 34 )
      )

循环遍历数组，检查每个项目（如果是）怎么样？id是您要找的人吗？

$found = false;
foreach ($your_array as $key => $data) {
    if ($data['id'] == $the_id_youre_lloking_for) {
        // The item has been found => add the new points to the existing ones
        $data['points'] += $the_number_of_points;
        $found = true;
        break; // no need to loop anymore, as we have found the item => exit the loop
    }
}

if ($found === false) {
    // The id you were looking for has not been found, 
    // which means the corresponding item is not already present in your array
    // => Add a new item to the array
}