String compare on a bool

Question

I\'m pretty sure this is a simple fundamental flaw in my newb PHP knowledge, but I was surprised when the following happened:

Answer 1

if($result === "email") will do the trick but personally I would never go this way.

Answer 2

Yes, true is equal (==) to a non-empty string. Not identical (===) though.

I suggest you peruse the type comparison table.

Answer 3

It returns true because php will try to convert something to be able to compare them. In this case it probably tries to convert the string on the right side to a bool which will be true in this case. And true == true is ofcourse true.

By doing $result === "email" (triple =) you tell PHP that it shoudn't do conversions and should return false if the types don't match.