phpcms多个网站

// 配置文件 config.php
return [
    'sites' => [
        'site1' => [
            'domain' => 'www.site1.com',
            'db_host' => 'localhost',
            'db_name' => 'site1_db',
            'db_user' => 'site1_user',
            'db_pass' => 'site1_pass',
        ],
        'site2' => [
            'domain' => 'www.site2.com',
            'db_host' => 'localhost',
            'db_name' => 'site2_db',
            'db_user' => 'site2_user',
            'db_pass' => 'site2_pass',
        ],
    ],
];

// 获取当前站点配置
$current_site = $_SERVER['HTTP_HOST'];
foreach ($config['sites'] as $site => $info) {
    if ($info['domain'] === $current_site) {
        define('CURRENT_SITE', $site);
        break;
    }
}

// 数据库连接
$db_config = $config['sites'][CURRENT_SITE];
$mysqli = new mysqli($db_config['db_host'], $db_config['db_user'], $db_config['db_pass'], $db_config['db_name']);
if ($mysqli->connect_error) {
    die('数据库连接失败: ' . $mysqli->connect_error);
}