php新建mysql数据库

<?php
$servername = "localhost";
$username = "your_username";
$password = "your_password";

// 创建连接
$conn = new mysqli($servername, $username, $password);

// 检查连接
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 创建数据库
$sql = "CREATE DATABASE mydatabase";
if ($conn->query($sql) === TRUE) {
    echo "数据库创建成功";
} else {
    echo "Error creating database: " . $conn->error;
}

$conn->close();
?>

<?php
$servername = "localhost";
$username = "your_username";
$password = "your_password";

try {
    $conn = new PDO("mysql:host=$servername", $username, $password);
    // 设置 PDO 错误模式为异常
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    // 创建数据库
    $sql = "CREATE DATABASE mydatabase";
    $conn->exec($sql);
    echo "数据库创建成功";
} catch(PDOException $e) {
    echo $sql . "<br>" . $e->getMessage();
}

$conn = null;
?>