PHP 需要回显吗？

Question

是否有可能需要一个 php 文件并返回所有回显的内容并将其存储到一个变量中？

例子:

//file1.php
// let's say $somevar = "hello world"
<p><?php echo $somevar; ?></p>


//file2.php
$file1 = getEchoed("file1.php");
// I know getEchoed don't exist, but i'm unsure how to do it.

Answer 1

使用输出缓冲:

ob_start();
require('somefile.php');
$data = ob_get_clean();