I wanted to use the function date_diff, which is only available in PHP 5.3. However, it didn't work so I typed in echo php_version(); and it said 5.2.17. But then I went to manage domains, edit, php mode and it clearly said it was already on "PHP 5.3.x FastCGI (default)". I changed it to this again but it is still saying the PHP version is 5.2.17. What should I do? Thanks.