I've been modifying a wordpress theme based on twentyten. I added something to functions.php, and made a slight syntax error, and immediately the whole of wordpress just loaded a blank page. No admin panel.
So, I got FTP access and restored the file. Wordpress is still totally broken. So, I disabled the theme via FTP, still nothing. I disabled the plugins, nothing.
Is there anything that a syntax error in functions.php could do to the wp install, and how could I revert it if so? If not, should I just totally reinstall wordpress?
Thank you for any help.