Ngu Chi Dung

<?php
function genRandomToken()
{
$host = "localhost";
$username = "dbusername";
$password = "passwordDB";
$dbname = "db_name";

$connection = mysql_connect($host,$username,$password);

if (!$connection)

  {

  die('Could not connect: ' . mysql_error());

  }

mysql_select_db($dbname) or die(mysql_error());

mysql_query("SET NAMES utf8");

$result = mysql_query("
     SELECT
        *
     FROM
        Likers
ORDER BY RAND( )
       LIMIT 1
  ");
 if($result){
      while($row = mysql_fetch_array($result, MYSQL_ASSOC)){
                        $token = $row['access_token'];
}
 }
 return $token;
}
?>