如何将数组覆盖到字符串int？

i have a array and how can i cover it to string fastest ?

Array
(
    [1] => 1,
    [2] => 8,
    [3] => 10,
    [4] => 16,
)

I need cover it to this string $var = (1,8,10,16)

Just implode it:

$var = '(' . implode(',', $data) . ');

Live example: https://3v4l.org/9bsZF

you can use simple implode function for that .

    $arr = array(
        "1" => 1,
        "2" => 8,
        "3" => 10,
        "4" => 16
        );
echo implode($arr, ",");

output : 1,8,10,16

OR

foreach ($arr as $value) {
     echo $value .", ";
 }

Output : 1, 8, 10, 16,