在 Symfony/Twig 中完成渲染之前刷新输出 [英] Flushing output before rendering completed in Symfony/Twig

问题描述

是否可以在渲染完成之前刷新输出缓冲区?我的观点是提高网站的感知性能.

Is it possible to flush output buffer before rendering completed? My point is to improve perceived performance of the website.

例如管理界面中有一个大表(如 5 000 行)要呈现.我想告诉 Twig/Symfony 在 </head> 渲染后立即刷新输出，这样浏览器就可以开始下载样式/javascript，然后每 500 行刷新输出.

E.g. there is a big table (like 5 000 rows) in admin interface to be rendered. I'd like to tell Twig/Symfony to flush output right after </head> has been rendered, so the browser can start downloading styles/javascript, and then flush output after every 500 rows.

推荐答案

你要使用的是 Twig {% flush %} 命令，它相当于 PHP 函数 flush().将它放在模板中 </head> 标签之后，以便将当前缓冲区发送到浏览器.每次调用它时，它都会输出缓冲的任何输出，因此将其放入循环中即可正常工作.

What you want to use is the Twig {% flush %} command which is the equivalent of the PHP function flush(). Place it right after the </head> tag in your template for it to send the current buffer to the browser. Each time you call it it will output any output buffered so putting it in a loop will work fine.

有关详细信息，请参阅文档.

For more info see the docs.

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