在CakePHP中合并2个数组

Question

I have two arrays array1 and array2. I want to merge these two arrays into one and show the values of merged array in a dropdown. I want the values in a way that the value of first array - value of 2nd array.

e.g:

$employeePlaces1 = array(1, 2, 4,9);
$employeePlaces2 = array(3, 5, 6,7);

I want in dropdown the value as $employeePlaces1[0]-$employeePlaces2[1], $employeePlaces1[0]-$employeePlaces2[1].

    1-3,
    2-5,
    4-6, 
    9-7.

How can I do this ?

Answer 1

$employee1 = array(1, 2, 4, 9);
$employee2 = array(3, 5, 6, 7);

function doMerge($n, $m) {
    return $n.'-'.$m;
}


$c = array_map("doMerge", $employee1, $employee2);

print_r($c);

Or in PHP 5.3 syntax with lambda style functions:

$c = array_map(function($n, $m) {return $n.'-'.$m;}, $employee1, $employee2);