多维数组到php中的索引数组

i have this multidimensional array.

Array
(
    [0] => Array
       (
          [car] => Toyota
       )

    [1] => Array
       (
          [car] => Ford
       )

    [2] => Array
       (
          [car] => Isuzu
       )

    [3] => Array
       (
          [car] => Chevrolet
       )

)

i want to put them into indexed array like this..

Array = ("Toyota", "Ford", "Isuzu", "Chevrolet");

foreach($yourArray as $carArray)
{
 $result[]=$carArray["car"];
}

And your understanding of indexed arrays is wrong. That example output you've shown contains all those values, not indexes, and since you didn't specify an index it will start from 0 and so on.

Option using array_map(), assuming your initial array is $arr

$new_arr = array_map(function($x){return $x['car'];}, $arr);

See demo

$result = array_map(function($item)
    { return $item['car']; }, $array);

Some functional approach. array_map

P.S. PHP has no indexed arrays

try using foreach and array_values, then save it into empty array. Hope it helps.