Checking value in an array inside one SQL query with WHERE clause

Question

I want to know is this practically possible in sql(using php as server-side), where in you have an array of values(numbers), and you try to retrieve data based on values ins

Answer 1

Yes, this is easily possible. You need to look at MySQL's IN function

Your query would be something like

SELECT * FROM posts WHERE user_id IN (1,2,3,4,5,6)

You can build the bit in between the parentheses in PHP using implode()