I have a multiple select field in my admin form. It works fine, it stores the several values selected separated with " ," in the database as expected. But in my content view, when I want to display the results in my article, it only shows one of the value, not the others.
I found why it didn't work well, in the select options, I put "text = value" (with blanks before and after =) instead of "text=value". So, in the database it was stored "value1, value2", the presence of the blank was the reason why only one value was showned in the content view.