Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Sort an array by key in ascending order
<?php ksort(array &$array, int $flags = SORT_REGULAR): true
<?php             $x_amz_params['X-Amz-Expires'] = (string)$expires;

        }



        ksort($x_amz_params);



        $query_string = "";

        foreach ($x_amz_params as $key => $value) {
<?php             $x_amz_params['X-Amz-Expires'] = (string)$expires;

        }



        ksort($x_amz_params);



        $query_string = "";

        foreach ($x_amz_params as $key => $value) {
<?php             $x_amz_params['X-Amz-Expires'] = (string)$expires;

        }



        ksort($x_amz_params);



        $query_string = "";

        foreach ($x_amz_params as $key => $value) {