WordPress清除$ GLOBALS吗？

Question

What I want to do is to include one of my PHP scripts in a Word Press theme. The problem is that after I include the script file I can't access, inside functions in the theme file, variables declared in the script file .

I have created a new file in the theme folder and added the same code as in header.php and if I open that file it works just fine. So as far as I can tell it's something Word Press related.

/other/path/wordpress/wp-content/themes/theme-name/header.php // this is broken
/other/path/wordpress/wp-content/themes/theme-name/test.php   // this works

/var/www/vhosts/domain/wordpress/ ->(symlink)-> /other/path/wordpress/
                                                /other/path/wordpress/wp-content/themes/theme-name/header.php
/var/www/vhosts/domain/include_file.php

Content of: /var/www/vhosts/domain/include_file.php

$global_var = 'global';
print_r($GLOBALS);  // if I open this file directly this prints globals WITH $global_var;
                    // if this file is included in header this prints all the WP stuff WITHOUT $global_var;

Content of: /other/path/wordpress/wp-content/themes/theme-name/header.php require '/path/to/include_file.php';

print $global_var; // this prints 'global' as expected
function test()
{
    global $global_var;
    print $global_var; // this is NULL
}
test();
print_r($GLOBALS); // this prints all the WP stuff WITHOUT $global_var in it

Answer 1

I'm not promoting the use of $GLOBALS, but anyway... define your variable using:

$GLOBALS['varname'] = 'value';

That should work. I suspect you're not actually in global scope like you think you are. That file is probably being include by a function, in which case you're in function-scope.