ob_get_contents + ob_end_clean与ob_get_clean

问题描述

这两段PHP之间有什么区别吗?

Is there any difference between these two pieces of PHP?

ob_start();
//code...
$pageContent = ob_get_contents();
ob_end_clean();
someFunction($pageContent);

vs

ob_start();
//code...
$pageContent=ob_get_clean();
someFunction($pageContent);

我当前正在使用第一个块，但是如果功能上等效，我想使用第二个块，因为它更加简洁.

I am currently using the first block, but I would like to use the second instead if it is functionally equivalent, since it is a bit more concise.

推荐答案

要回答您的问题:

是的.在功能上是等效的.

Yes. It is functionally equivalent.

案例1:

ob_get_contents() + ob_end_clean():

ob_end_clean —清理(擦除)输出缓冲区并关闭输出缓冲

ob_end_clean — Clean (erase) the output buffer and turn off output buffering

因此，基本上，您是将输出缓冲区的内容存储到一个变量中，然后使用ob_end_clean()清除它.

So, basically, you're storing the contents of the output buffer to a variable and then clearing it with ob_end_clean().

案例2:

您要将缓冲区内容存储到变量中，然后删除输出缓冲区.

You're storing the buffer contents to a variable and then the output buffer is deleted.

您所做的基本上是相同的.因此，在这里使用第二个代码块不会出现任何问题，因为它们都在做相同的事情.

What you're doing is essentially the same. So, I don't see anything wrong with using the second code-block here, since they're both doing the same thing.

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