Question

我下面有一个数组，它是一个通用名称，但姓氏不同。我想将所有这些名称放入一个数组中，并将姓氏数组放入单个数组中。像下面的一样。

   Array
    (
        [0] => Array
            (
                [Name] => Rahul
                [surname] => M
            )

        [1] => Array
            (
                [Name] => Rahul
                [surname] => D
            )

        [2] => Array
            (
                [Name] => Rahul
                [surname] => F
            )
)

我希望上面的内容像下面的

 Array(
    [0] => Array(
        [Name] => Rahul
        [surname] => Array(
            [0] => M
            [1] => D
            [2] => F
        )
    )
)

Answer 1

您可以在主数组上循环并像这样附加它：

<?
$names = [];
$names[0]['Name'] = 'Rahul';
$names[1]['Name'] = 'Rahul';
$names[2]['Name'] = 'Rahul';
$names[0]['surname'] = 'M';
$names[1]['surname'] = 'D';
$names[2]['surname'] = 'F';
$commonNames = [];
if (! empty($names)) {
 foreach($names as $name) {
  $commonNames[0][$name['Name']][] = $name['surname'];
 }
}

echo '<pre>';print_r($commonNames);echo '</pre>';
?>

输出：

Array
(
 [0] => Array
 (
 [Rahul] => Array
  (
   [0] => M
   [1] => D
   [2] => F
   )
 )
)

Working Code:

Answer 2

您可以这样做

$temp = [];
array_walk($arr, function($item,$key) use(&$temp){
    $temp[$item['Name']]['Name'] = $item['Name'];
    $temp[$item['Name']]["surname"][] = $item['surname'];
});
$temp = array_values($temp);
print_r($temp);

array_values —返回数组的所有值
array_walk —将用户提供的函数应用于数组的每个成员

Demo。

如何使特定的通用数组值变为单个数组，以及如何使其他值落在该数组下面

2 个答案: