自从php 4.3起，mysql_create_db()函数已被弃用。 现在，建议使用以下2种替代方法之一。

• mysqli_query()
• pdo::__query()

php mysqli创建数据库

示例

<?php  
$host = 'localhost:3306';  
$user = 'root';  // mysql用户账号
$pass = '';  
$conn = mysqli_connect($host, $user, $pass);  
if(! $conn )  
{  
  die('could not connect: ' . mysqli_connect_error());  
}  
echo 'connected successfully<br/>';  

$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);  
?>

执行上面代码，输出结果如下 -

connected successfully
database mydb created successfully.