从php回声“随它去”； [英] echo from php "as it goes"

问题描述

在脚本结束之前打印内容时，从php脚本打印结果的方法是什么？我尝试使用输出缓冲区，将echo（）之间的sleep（）进行测试，但脚本执行后总是显示结果。

what was the way to print results from a php script while it's printing stuff before the script ends? i tried to play with output buffer, putting sleep() between echos to test but the result is always showed after the script executes. Is it a browser-side thing too?

推荐答案

您可以在PHP脚本中尝试刷新所有当前输出的所有内容吗？到用户浏览器的是对 ob_flush 的调用，但这实际上还取决于许多其他因素。

All you could do in your PHP script to try to flush all the current output to the user's browser is a call to ob_flush, but it actually depends on many other things as well.

HTTP服务器具有自己的缓冲，浏览器可能不会立即呈现它收到的每个数据包。就像在不同级别上有很长的缓冲区流水线一样，在浏览器中看到任何内容之前，都必须清除所有缓冲区，而PHP输出缓冲区处于最高级别。

The HTTP server has its own buffering, and the browser may not instantly render every packet it receives. It's like a long pipeline of buffers at different levels that all have to be flushed before you see anything in the browser, and the PHP output buffer is at the highest level.

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