Color bug in closing PHP inside quotes #408

Description

Bug description: When you try to close ?> in PHP inside single or double quotes, the question mark character (?) is not colored correctly, I attached an image:

In the image you can see the bug in the first two lines, in the anchor and in the div, in the last line you can see how it should look correctly when used outside the quotes.

Thank you so much.

Steps to reproduce

Anytime you try to use PHP inside quotes.

Version

6.3.5 (Latest)

Theme

GitHub Dark Default