How to call a Postgres Store Procedures in laravel

I'm not able to call a Function from my Postgres code on my Laravel system.

CREATE OR REPLACE FUNCTION usuario.funsetsessao(
    login_p text,
    ip_p text,
    sistema_p text,
    logar_p boolean)
    RETURNS boolean AS
$BODY$
BEGIN
    DROP TABLE IF EXISTS tmp_user_log;
    CREATE TEMPORARY TABLE tmp_user_log ON COMMIT DROP AS
     SELECT *, ip_p as ip, sistema_p as sistema, logar_p as logar 
      FROM usuario.usuario 
     WHERE login = login_p;

    RETURN logar_p;
END;
$BODY$
  LANGUAGE plpgsql VOLATILE
  COST 100;
ALTER FUNCTION usuario.funsetsessao(text, text, text, boolean)
  OWNER TO postgres;

And this is my attempt to call the function in Laravel:

$result = DB::select('SELECT * FROM usuario.funsetssesion("adielson", "127.0.0.1", "teste", true)');

I would like help.