是否可以覆盖另一个文件中的变量

Question

Forgive me if this is one of those dumb questions.

I'm writing a theme for wordpress and making use of PHP variables to communicate between files.

<?php
    $somevar = 'cat';
    $display = 10;
    include 'cat_display.php';
?>

It has suddenly ocured to me that while I am including my own files, Wordpress must be including my files. What if those variables that I think I have declared have already been declared up the chain and hold something important.

The last thing I want to do is open my .htaccess for abuse or have something unmeaningful added to the database.

$user_id = 10; // Oops just granted uberuser status to WillyWonka

Do I have anything to worry about?

Answer 1

Yes, it certainly is.

You could rename your variables $yourinitials_somevar to avoid the problem.

[edit]Or put them in an array, as Christopher says in the question comments.