Do not do this, it will change the price permanently.

You don't need to use sudo

This is amazing. One thing though, don't put ?> at the end of your files, doing so could mean you accidentally include an extra character which would send headers before Magento does and cause you issues.

@Vinai no, that's a fair point - i'm just lazy ;)

An even lazier way of setting search results is to just set it as the core one: <preference for="VinaiKopp\Kitchen\Api\Data\HamburgerSearchResultsInterf‌​ace" type="Magento\Framework\Api\SearchResults" /> in di.xml

FYI it's regarded as bad practice to put ?> at the end of your php files. The reason is, if you accidentally put whitespace after the ?> then PHP will begin its response to the client. When Magento comes to set its own headers and response, it'll error, "Headers already sent" and you'll spend hours debugging it.

Is this for Magento 1 or 2?

I think it changes it in the beforeSave because it modifies it in the afterLoad. If it was saved in database as UTC, changed to BST in the afterLoad, and then saved without converting back to UTC, it would break.

This is a good tutorial, but only covers admin controllers. Should help though. smashingmagazine.com/2014/03/…

can you do the following on the server: cd /webroot/shell && php compiler.php clear this will clear the disable and exclude the compiler path.

The other post looks like a compilation issue. Do you have access to the server this site is running on?