When viewing an article in most of the websites, we can see a list of "related" topics to the one we read. My question is: how can I make an effective "real" related topics list as they do? What do I need? How do I search the DB?
For you to know, I have made a field in the articles table called "key_words". The admin should add key words with / between each one. Later, I explode that field and do a seach using LIKE method. But the result was horrible.