Reading boolean correctly from Postgres by PHP

Question

The main problem of this thread is moved to here about boolean datatype in PHP / Postgres.

The problem is the conversion of t and f to

Answer 1

Select boolean field from postgre as ::int and in php cast to bool.

 "SELECT a_moderator::int 
        FROM users
        WHERE email = $1;"

$isModerator = (bool)$row['a_moderator'];