function muser() {

//
function randomPassword() {
    $alphabet = "abcdefghjkmnpqrstuwxyz23456789"; // skip 0OoIl1
    $pass = array(); //remember to declare $pass as an array
    $alphaLength = strlen($alphabet) - 1;
    for ($i = 0; $i < 6; $i++) {
        $n = rand(0, $alphaLength);
        $pass[] = $alphabet[$n];
    }
    return implode($pass);
}
if(isset($_REQUEST['submit'])) {
$user_input_user = $_REQUEST["user"];
$user_input_limit = $_REQUEST["limit"];

$ipass = randomPassword();


}

$uiuser = $user_input_user;
$uilimit = $user_input_limit;


$limit = $uilimit;
for($x = 1; $x <= $limit; $x++) {
    // $queryuser = array();
    $queryuser[] = "('$uiuser$x', '$ipass'),";
    }
    return implode($queryuser);

 }
 $mquery = 'INSERT INTO `users` (`user`, `pass`) VALUES ';
 $imuser = muser();
 $fquery = substr($imuser, 0, -1);
 $sql =  $mquery . $fquery .';';  // echo $imuser;