Fix snippet code in php on modx

We have a code snippet that crookedly works with php 7, but seems to be OK on php 5.6

You need to check and correct.

Unfortunately, there is no post code, so that maximum screenshot:

https://s.mail.ru/6vNZ/94k4Gszwu

https://s.mail.ru/8fNP/EmPwcwqSb