file_get_content（）函数的简单基本相对路径

Question

I'm trying to output my screen.css file contents with in <style> tag.

I thought this was the easy part, but relative path not working?

See my code...

<?php printf('<style type="text/css">%s</style>', file_get_contents('css/screen.css?v='.rand()) ); ?> 

So in theory, this code is in my index.php, the relative path should find the css folder local to my php file? But I get this error...

Warning: file_get_contents(./css/screen.css?v=1836240868): failed to open stream: No such file or directory in index.php on line 18
');

See my folder my structure below...

If anyone can give me some advice or help on this that would be great.