以关联方式映射数组

Question

I have the following array defined.

$a = Array
(
    [0] => 30:27
    [1] => 29:28
    [2] => 30:27
)
$b = Array
(
    [0] => 102186
    [3] => 102991
    [4] => 102241
)

I have used array_map($a,$b); But not what i want the result comes.

Always first to first key, second to second key, third to third key, I expect the following result...

$ab = $b = Array
    (
        [0] => 102186 [30:27]
        [1] => 102991 [29:28]
        [2] => 102241 [30:27]
    ) 

Answer 1

Just loop over the 1st array and add the corresponding value from the 2nd one. You can actually use array_map for this:

$ab = array_map(function($aVal, $bVal){
    return "$bVal [$aVal]";
}, $a, $b);

DEMO: https://eval.in/78684