setClientEncoding example

if ($this->connID !== false) {
            if ($persistent === true && pg_connection_status($this->connID) === PGSQL_CONNECTION_BAD && pg_ping($this->connID) === false
            ) {
                return false;
            }

            if (! empty($this->schema)) {
                $this->simpleQuery("SET search_path TO {$this->schema},public");
            }

            if ($this->setClientEncoding($this->charset) === false) {
                return false;
            }
        }

        return $this->connID;
    }

    /** * Converts the DSN with semicolon syntax. */
    private function convertDSN()
    {