ob_start echo的字符串仍然没有显示 [英] ob_start echo's strings out still

问题描述

如果ob_start()不允许echo的输出返回其正常目的地，而只是记录其内容，我会很喜欢.但是它似乎没有这样做.有任何想法吗?这是我的代码:

I'd like it if ob_start() didn't let echo's output to their normal destination and just log their contents instead. But it doesn't seem to be doing that. Any ideas? Here's my code:

<?php

ob_start();

echo 'test';

$out = ob_get_contents();

var_dump($out);

测试仍在回显.它也是var_dump'd，但是我不希望它被回显.

test is still echo'd. It's var_dump'd, as well, but I don't want it to be echo'd.

有什么想法吗?

谢谢！

推荐答案

输出缓冲区在脚本末尾自动刷新，因此是预期的行为.

The output buffer is automatically flushed at the end of the script, so it's expected behaviour.

您正在寻找 ob_get_clean() ，它会在清除之前返回当前缓冲区:

You are looking for ob_get_clean(), which returns the current buffer before clearing it:

$out = ob_get_clean();

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