Two copies of PHP code, the same reason why the execution results are different

Two copies of PHP code, the same codes, why the execution results are different
Rt
My little brother just started to learn PHP, was tortured by this problem for 3 days, just started to think that the environment is not configured correctly, all kinds of Internet search data to solve, are fruitless, and finally found that the installation of wampserver can correctly start localhost, so it feels wrong, Then the index.php copy, delete the extra code, just leave the Echo statement, and then execute in the browser, can display correctly. Then the code in this php file copied to the normal execution of PHP files can not be displayed correctly, pondering half a day do not know why. Ask the great God to give a solution, thank you very much.

I need to upload these two files to reproduce the problem.
File Link:
http://download.csdn.net/detail/huihui_54321/7650745
Image link is as follows:

------Solution--------------------
The test-right.php value ANSI is GBK encoded
Test-wrong.php is Unicode-encoded
According to the Unicode encoding standard, the basic ASCII character is also 2 bytes, so the PHP parser does not know, the original output

You're a little bit too damaged in the way you make the download points.

