In some cases you may need to add a function to your website, either to hook something into the theme, or use a filter to change something in the theme.
When working with PHP, you want to make sure you have access to your server via FTP or File Manager (through your hosting control panel). This is due to how unforgiving PHP is, if there’s an error in the code, your site can turn into a blank white page. To fix this, simply go into your server and delete the code you added.
