MySQLi创建数据库

$host = 'localhost:3306';  
$user = '';  
$pass = '';  
$conn = mysqli_connect($host, $user, $pass);  
if(! $conn )  
{  
  die('Could not connect: ' . mysqli_connect_error());  
}  
echo 'Connected successfully';  
  
$sql = 'CREATE Database mydb';  
if(mysqli_query( $conn,$sql)){  
  echo "Database mydb created successfully.";  
}else{  
echo "Sorry, database creation failed ".mysqli_error($conn);  
}  
mysqli_close($conn);