To have boolean type in Postgres for PHP

I can't believe that the following statement seems to be still true

So, I switched to integers and 0 or 1 works fine, but it is
stupid, that the database system has boolean variables of a smaller
size, but I should use integers for boolean values!

How do you use boolean datatype with Postgres / PHP?

In other words,

Is the only way to use 1 for true and 0 for false in getting the kind of the boolean datatype?

From stackoverflow

• Using 1 and 0 is a very sensible and portable way to represent boolean values. Any difference in size between and int and a native boolean type is really going to make little or no difference to your application's performance, or the KB size of your database.

  Masi : Your answer suggests me that I need to change every datatype `BOOLEAN` in my SQL queries to `INTEGER`. It is strange that the `BOOLEAN` is made string by postgres after running the queries.

  karim79 : I wasn't suggesting that you change anything. Maybe out of habit or personal preference, I tend to use 0 & 1s to represent booleans. If that is already working for you, don't spend too much time thinking about it.

  Masi : Figures are easy. Let's use them :)

  txwikinger : Mysql actually uses 0 and 1 in a tinyint(1) when you define a boolean datatype.