如何以编程方式获取已安装的composer包？

<?php

function getInstalledPackages() {
    // Composer的自动加载文件路径
    $autoloadFile = __DIR__ . '/vendor/autoload.php';
    
    if (file_exists($autoloadFile)) {
        // 引入Composer的自动加载文件
        require $autoloadFile;
        
        // 使用Composer的RepositoryManager获取已安装的包
        $repositoryManager = \Composer\Factory::createComposer()->getRepositoryManager();
        $localRepo = $repositoryManager->getLocalRepository();
        
        // 获取包的列表
        $packages = [];
        foreach ($localRepo->getPackages() as $package) {
            $packages[] = [
                'name' => $package->getPrettyName(),
                'version' => $package->getPrettyVersion()
            ];
        }
        
        return $packages;
    } else {
        throw new Exception('Composer autoload file not found!');
    }
}

try {
    $packages = getInstalledPackages();
    print_r($packages);
} catch (Exception $e) {
    echo 'Error: ' . $e->getMessage();
}