Unable to display result in an array PHP

Question

$emp1 = $_POST['student1'];

$emp2 = $_POST['student2'];

$emp3 = $_POST['student3'] ;

 

$mys = "SELECT mobile FROM users where name = '$emp1'  AND name ='$emp2' AND name = '$emp3'";

$result= mysqli_query($conn, $mys);

foreach($result as $row)

{

}

$me = $row["mobile"];

 

$contacts = array(', ',$me); 

 

$mobile = implode(',', $contacts);

 

 

Please help me , i'm unable to display result in an array means 
$me not displaying any record in an array . 
where is the error