I tried the views_php
but I have no luck. Any link to its documentation?
I want to add some custom field with PHP code inside it but the one I did return nothing. Please see the attached picture.
Yes you can add php code using views_php
Add field in views global Then add code you need is in Output code sector. I thing here is the problem for you. you add php code to 'Value code'. Then look at the preview. it's done!!!!!!
php filter
.