来自已知键值的php多维数组

Question

我在这个庞大的扁平单个数组中有一组键我想基本上将该数组扩展为由键组织的多维数组 - 这是一个例子:

'invoice/products/data/item1'
'invoice/products/data/item2'
'invoice/products/data/item2'

=>

'invoice'=>'products'=>array('item1','item2','item3')

我怎么能这样做 - 上面的字符串的长度是可变的...

谢谢!

Answer 1

$src = array(
'invoice/products/data/item1',
'invoice/products/data/item2',
'invoice/products/data/item2',
'foo/bar/baz',
'aaa/bbb'
);

function rsplit(&$v, $w)
{
    list($first, $tail) = explode('/', $w, 2);
    if(empty($tail)) 
    {
        $v[] = $first;
        return $v;
    }
    $v[$first] =  rsplit($v[$first], $tail);
    return $v;

}

$result = array_reduce($src, "rsplit");
print_r($result);

输出是:

Array (
    [invoice] => Array
        (
            [products] => Array
                (
                    [data] => Array
                        (
                            [0] => item1
                            [1] => item2
                            [2] => item2
                        )

                )

        )

    [foo] => Array
        (
            [bar] => Array
                (
                    [0] => baz
                )

        )

    [aaa] => Array
        (
            [0] => bbb
        )

)