使用相同的键组合数组

Question

我有4个数组，我需要通过键'0'组合：

Array
    (
    [0] => 1
    [1] => Array
     (
        [0] => A
        [1] => B
        [2] => C
    )

)

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

)


Array
    (
    [0] => 1
    [1] => Array
     (
        [0] => G
        [1] => H
        [2] => I
    )

)


Array
    (
    [0] => 2
    [1] => Array
     (
        [0] => J
        [1] => K
        [2] => L
    )

)

我需要得到的是组合数组，应该是这样的：

Array
    (
    [0] => 1
    [1] => Array
     (
        [0] => A
        [1] => B
        [2] => C
        [3] => G
        [4] => H
        [5] => I
    )

)

Array
    (
    [0] => 2
    [1] => Array
     (
        [0] => D
        [1] => E
        [2] => F
        [3] => J
        [4] => K
        [5] => L
    )

)

我尝试过使用array_merge_recursive但没有成功。 也在这里搜索，抱歉，如果重复 在此先感谢您的帮助！

Answer 1

试试这个：

$init = array(
    array(1, array('A', 'B', 'C')),
    array(2, array('D', 'E', 'F')),
    array(1, array('G', 'H', 'I'))
);

$results = array();

foreach ( $init as $array ){
    $found = false;
    foreach ( $results as &$result ){
        if ( $array[0] === $result[0] ){
            $result[1] = array_merge($result[1], $array[1]);
            $found = true;
        }
    }
    if ( !$found ){
        $results[] = $array;
    }
}