代码片段仓库

// 用户登录验证
function loginUser($username, $password) {
    $user = getUserByUsername($username);
    
    if ($user && password_verify($password, $user['password'])) {
        $_SESSION['user_id'] = $user['id'];
        return true;
    }
    return false;
}

<?php
$host = "127.0.0.1";
$dbname = "my_database";
$username = "db_user";
$password = "secure_password";

try {
    $conn = new PDO("mysql:host=$host;dbname=$dbname", $username, $password);
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "Connected successfully";
} catch(PDOException $e) {
    echo "Connection failed: " . $e->getMessage();
}
?>