如何从一个PHP页面访问变量到另一个，没有表单，链接或按钮？

TLDR： - 从一个 PHP文件中传递变量的内容的好方法到另一个不涉及表格，链接或按钮。

TLDR:- What is a good way to pass contents of a variable from one PHP file to another without involving a form, link or a button.

问题： -

所以有一个 question_edit_form.php 的页面/文件中的code>表单及其操作属性已设置为另一个名为 question.php 的文件。 感兴趣的变量正在用户在 question_edit_form.php 中读入，然后显然被发送到 question.php 使用 $ _ POST 。

So there is a form in a page/file called question_edit_form.php and its action attribute is already set to another file called question.php. The variable of interest is being read-in from the user in question_edit_form.php and is then obviously being sent to question.php using $_POST.

现在，有第三个文件，名为 renderer.php ，并且没有链接到其他两个文件。 我想在此文件中使用该感兴趣的变量。 那么如何从renderer.php中访问question.php中设置的变量？

Now, there is a third file, named renderer.php, and which is not linked to the other two files. I want to use that variable of interest in this file. So how can I access that variable which is set in question.php from inside renderer.php?