如何使用php脚本创建mysql用户和数据库？

I want to Create mysql user and database using php script

how to create mysql user using mysql_query()

<?php
    mysql_query("CREATE USER 'demodemodemo'@'localhost' IDENTIFIED BY 'jayul321';");
?>

this is not working..

PHP script to create MySQL database, add user and grant privileges.

## make sure you connect first to mysql with a super user (ex: root)
mysql_connect('localhost', 'root', 'password');

$dbName = 'database_name'; // new database name
$dbUser = 'db_user';       // new user name
$dbPass = 'db_pass';       // new user password

$queries = array(
    "CREATE DATABASE `$dbName` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci",
    "CREATE USER '$dbUser'@'localhost' IDENTIFIED BY '$dbPass'",
    "GRANT USAGE ON * . * TO '$dbUser'@'localhost' IDENTIFIED BY '$dbPass' WITH MAX_QUERIES_PER_HOUR 0 MAX_CONNECTIONS_PER_HOUR 0 MAX_UPDATES_PER_HOUR 0 MAX_USER_CONNECTIONS 0",
    "GRANT SELECT , INSERT , UPDATE, DELETE ON `$dbName` . * TO '$dbUser'@'localhost'",
    "FLUSH PRIVILEGES"
);

foreach($queries as $query) {
    echo 'Executing query: "'.htmlentities($query).'" ... ';
    $rs = mysql_query($query);
    echo ($rs ? 'OK' : 'FAIL') . '<br/><br/>';
}