php 中html

// 使用Twig模板引擎示例
require_once 'vendor/autoload.php';

$loader = new \Twig\Loader\FilesystemLoader('templates');
$twig = new \Twig\Environment($loader);

echo $twig->render('index.html', ['name' => 'World']);

// 使用Memcached缓存示例
$memcached = new Memcached();
$memcached->addServer('localhost', 11211);

$key = 'some_key';
$value = $memcached->get($key);

if (!$value) {
    $value = // ... 获取数据的逻辑 ...
    $memcached->set($key, $value, 3600); // 缓存1小时
}

// 使用PDO防止SQL注入示例
try {
    $pdo = new PDO('mysql:host=localhost;dbname=test', $user, $pass);
    $stmt = $pdo->prepare('SELECT * FROM users WHERE id = :id');
    $stmt->bindParam(':id', $id, PDO::PARAM_INT);
    $stmt->execute();
    $user = $stmt->fetch();
} catch (PDOException $e) {
    echo 'Connection failed: ' . $e->getMessage();
}