基于资源进行缓存

use Symfony\Component\Config\ConfigCache;
use Symfony\Component\Config\Resource\FileResource;
 
$cachePath = __DIR__.'/cache/appUserMatcher.php';
 
// the second argument indicates whether or not you want to use debug mode
// 第二个参数指明你是否要使用debug模式
$userMatcherCache = new ConfigCache($cachePath, true);
 
if (!$userMatcherCache->isFresh()) {
    // fill this with an array of 'users.yml' file paths
    // 用一个类似'user.yml'的文件路径之数组来填充此变量
    $yamlUserFiles = ...;
 
    $resources = array();
 
    foreach ($yamlUserFiles as $yamlUserFile) {
        // see the previous article "Loading resources" to
        // see where $delegatingLoader comes from
        // 参考上一篇文章“加载资源”来了解$delegatingLoader来自哪里
        $delegatingLoader->load($yamlUserFile);
        $resources[] = new FileResource($yamlUserFile);
    }
 
    // the code for the UserMatcher is generated elsewhere
    // 用于UserMatcher的代码被生成到某个地方
    $code = ...;
 
    $userMatcherCache->write($code, $resources);
}
 
// you may want to require the cached code:
// 你可能需要这个缓存了的代码
require $cachePath;