PHP mysqli_kill() Function

<?php/*  j a  v a  2s.  co  m*/
$con=mysqli_connect("localhost","my_user","my_password","my_db");

if (mysqli_connect_errno($con)){
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
}

// Get thread id
$t_id=mysqli_thread_id($con);

// Kill connection
mysqli_kill($con,$t_id);
?>

<?php/*  ja v  a 2  s.co  m*/
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");

if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}

$thread_id = $mysqli->thread_id;

$mysqli->kill($thread_id);

// This should produce an error
if (!$mysqli->query("CREATE TABLE myEmp LIKE emp")) {
    printf("Error: %s\n", $mysqli->error);
    exit;
}

$mysqli->close();
?>