drush_user_info.php

/**
 * Execute drush to fetch users and roles in a given site.
 *
 * @param [type] $site_alias
 * @param [type] $drush_alias
 * @return void
 */
function execDrushUserInfo($site_alias, $drush_alias)
{
    $php = "/usr/local/bin/php";
    $drush_php = "/usr/local/bin/drush";

    $result = exec("drush  $drush_alias  -l  $site_alias uinf \"$(drush   $drush_alias  -l  $site_alias sqlq \"SELECT GROUP_CONCAT(name) FROM users_field_data\")\"", $output, $return);
    if (strpos($output[2], "Command user-information was not found. Drush was unable to query the database")) {
        echo "\nCould not query database in $site_alias \n ";
    } else {
        echo "\nUsers found in $site_alias \n";
        print_r($result);
        print_r($output);
    }
}

// Execute drush example.
execDrush("sites_url_alias.com", " status ", " @drushalias.01dev ");