The php script path cannot be clearly understood. the php script _ PHP Tutorial-php Tutorial

The php script path is not clear, but the php script is not clear. The php script path cannot be clearly understood. if you do not know the php script, you will not talk about it. Instead, you can directly raise the question today. to be accurate, php script paths that are similar to the current script information are not clear.

If you don't need to talk about it, you can directly raise the question today. to be precise, you can tell the difference between multiple similar global variable constants related to the current script information.

First paste the code:

 "; Echo _ FILE __; echo"

 "; Echo $ _ SERVER ['script _ filename']; echo"

 "; Echo $ _ SERVER ['remote _ ADDR ']; echo"

 "; Echo $ _ SERVER ['query _ string']; echo"

 ";

The address in the browser is http: // localhost/test/test4.php? A = 3 localhost is the root directory.

Now, what I have carefully read is a bit confusing.

I don't need to explain the results. I believe many people can understand the results at a glance.

I will not talk about it, but I will directly raise Today's questions. to be precise, I will discuss multiple similar information about the current script...