Why is my if statement not working the way I expect?

Question

I am trying to achieve the following: I ask my SQL database a query using SELECT * FROM subjects. After doing that I ask for the array using mysqli_fetch_asso

Answer 1

Your comparison operator is wrong. You're using = which is an assignment operator. In your example it will always be true. You need to use == which is a comparison operator.

if ($subject["sexo"] = 1) { 

should be

if ($subject["sexo"] == 1) {