PHP 原生连接 Mysql

PHP原生连接MySQL可以通过使用mysqli或PDO扩展来实现。

使用mysqli扩展连接MySQL的示例代码如下：

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

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

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

// 执行SQL查询或操作
$sql = "SELECT * FROM table";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "ID: " . $row["id"]. " - Name: " . $row["name"]. "<br>";
    }
} else {
    echo "0 结果";
}

// 关闭连接
$conn->close();
?>

使用PDO扩展连接MySQL的示例代码如下：

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "连接成功";

    // 执行SQL查询或操作
    $sql = "SELECT * FROM table";
    $stmt = $conn->prepare($sql);
    $stmt->execute();

    $result = $stmt->fetchAll(PDO::FETCH_ASSOC);

    foreach($result as $row) {
        echo "ID: " . $row["id"]. " - Name: " . $row["name"]. "<br>";
    }
} catch(PDOException $e) {
    echo "连接失败: " . $e->getMessage();
}

// 关闭连接
$conn = null;
?>

请根据实际情况将上述代码中的$servername、$username、$password和$dbname替换为您的MySQL服务器的相关信息。