set_sql_mode example

return false;
        } elseif ( $this->dbh ) {
            if ( ! $this->has_connected ) {
                $this->init_charset();
            }

            $this->has_connected = true;

            $this->set_charset( $this->dbh );

            $this->ready = true;
            $this->set_sql_mode();
            $this->select( $this->dbname, $this->dbh );

            return true;
        }

        return false;
    }

    /** * Parses the DB_HOST setting to interpret it for mysqli_real_connect(). * * mysqli_real_connect() doesn't support the host param including a port or socket * like mysql_connect() does. This duplicates how mysql_connect() detects a port * and/or socket file. * * @since 4.9.0 * * @param string $host The DB_HOST setting to parse. * @return array|false { * Array containing the host, the port, the socket and * whether it is an IPv6 address, in that order. * False if the host couldn't be parsed. * * @type string $0 Host name. * @type string|null $1 Port. * @type string|null $2 Socket. * @type bool $3 Whether it is an IPv6 address. * } */