Build and send PHP Array to JS via Ajax

Question

I want to build an array in PHP from SQL query and send it back via ajax to my JS file.

$id = clear(filter_input(INPUT_POST, 'id')); 
$sql = 'SELECT * FROM `counties` WHERE `id`="'.$id.'"';
$query = mysqli_query($con, $sql);
$array = array();
while($result = mysqli_fetch_array($query)) {
    $id = $result['id'];
    $name = $result['name'];
    $array[] = array('id' => $id, 'name' => $name);
}

echo json_encode($array);

This is my code. In response I have always just one element. There's a lot of more. How could i do that correctly? I was browsing whole Internet and I didn't find anything useful... :(

Answer 1

$id = $_POST['id']; 
$query = mysqli_query($con, "SELECT id,name FROM `counties` WHERE `id`='$id'");
$array = mysqli_fetch_all($query,MYSQLI_ASSOC);
echo json_encode($array);

this may simplified code