PHP动态模块加载与配置隔离技巧

$modules = [
    'user'     => ['enabled' => true,  'file' => './modules/user.php'],
    'log'      => ['enabled' => false, 'file' => './modules/log.php'],
    'payment'  => ['enabled' => true,  'file' => './modules/payment.php'],
];

foreach ($modules as $name => $config) {
    if ($config['enabled'] && file_exists($config['file'])) {
        include $config['file'];
    }
}

/modules
  /UserModule
    module.php
    UserService.php
  /PaymentModule
    module.php
    PaymentGateway.php

// modules/UserModule/module.php
namespace App\Modules\UserModule;

class Bootstrap {
    public static function init() {
        echo "用户模块已加载\n";
        // 注册路由、事件监听等
    }
}

Bootstrap::init();

$activeModules = ['UserModule', 'PaymentModule'];

foreach ($activeModules as $module) {
    $path = "./modules/{$module}/module.php";
    if (file_exists($path)) {
        require_once $path;
    }
}

foreach ($modules as $name => $config) {
    if ($config['enabled']) {
        try {
            include $config['file'];
        } catch (\Throwable $e) {
            error_log("模块 {$name} 加载失败: " . $e->getMessage());
        }
    }
}

function loadModule($moduleName) {
    static $loaded = [];
    if (isset($loaded[$moduleName])) {
        return true;
    }

    $path = "./modules/{$moduleName}/module.php";
    if (file_exists($path)) {
        include $path;
        $loaded[$moduleName] = true;
        return true;
    }
    return false;
}

// 使用时再加载
if ($needUserFeature) {
    loadModule('UserModule');
}