Instruction delimiter? How to solve it

Instruction delimiter?
http://docs.php.net/manual/zh/language.basic-syntax.phptags.php
If the file content is pure PHP code, it is best to remove the PHP end tag at the end of the file. This avoids having to accidentally add a space or line break after the PHP end tag, which causes PHP to start outputting these blanks, and there is no intention to output the script at this time.

Problem:
1.

 
     echo "QQQ"

Why, wrong?

Share to:

------Solution--------------------
Or omit the last line of ";"
Or omit the last "?>".
But cannot be omitted at the same time!

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