So my query works on the actual `phpmysql` server when I manually type in some values but in `php` I am having some difficulty.

This is my `SQL` table:

```
userID | forename | surname  |      email         | age    | 
------------------------------------------------------------
    1  |  Jack    |  Wolf    |   dj@rave.com      |  19    | 
    2  |  Mark    |  Smith   |   mark@rave.com    |  18    | 
    3  |  Ben     |  Cas     |   sex@club.com     |  21    | 
    4  |  Jos     |  Jis     |   jis@jos.com      |  19    | 
    5  |  Luke    |  Kils    |  kils@kiss.com     |  23    | 
------------------------------------------------------------

```

Basically, I want to pass in some `UserID` values like this `1,3,5` and it should display:

```
userID | forename | surname  |      email         | age    | 
------------------------------------------------------------
    1  |  Jack    |  Wolf    |   dj@rave.com      |  19    | 
    3  |  Ben     |  Cas     |   sex@club.com     |  21    | 
    5  |  Luke    |  Kils    |  kils@kiss.com     |  23    | 
------------------------------------------------------------

```

The userID values can vary depending on what the user selects so it can be `2` or even `1,2,3,4` or even `1,2,3,4,5`

This is my `php` code:

```
<?php
require "init.php";
if(!empty($_POST['userID'])){
    $userID = $_POST['userID']; 
    echo $_POST['userID'];  
    $stmt = "SELECT userID, forename, surname, email, age
            FROM users
            WHERE userID IN (?)";   
    $result = $conn-> prepare($stmt);
    $result->bind_param('i', $userID);
    $result->execute(); 
    $outcome=$result->get_result();
    $response = array();
    if(($outcome->num_rows)>0){
        while($row = $outcome->fetch_assoc()){
            $response[] = array
            (
                "userID" => $row["userID"],
                "forename" => $row["forename"],
                "surname" => $row["surname"],
                "email" => $row["email"],
                "age" => $row["age"]
            );
        }
    echo json_encode($response); 
    }
    else{
        echo json_encode("None found");
    }
}

?>

```

When I echo `$userID = $_POST['userID'];` I get `1,2,3` or `1`, but then these are not being passed properly to the `SELECT STATEMENT`. How do I fix it?

Thanks