구버전 우편번호를 변경하였는데 질문이 있습니다. 채택완료

</strong> </p><p><label for="reg_mb_zip1" class="sound_only">우편번호 앞자리<?php echo $config['cf_req_addr']?'<strong class="sound_only"> 필수</strong>':''; ?></label></p><p>                <input type="text" name="mb_zip1" value="<?php echo $member['mb_zip1'] ?>" id="reg_mb_zip1" <?php echo $config['cf_req_addr']?"required":""; ?> class="frm_input <?php echo $config['cf_req_addr']?"required":""; ?>" size="3" maxlength="3"></p><p>                -</p><p>                <label for="reg_mb_zip2" class="sound_only">우편번호 뒷자리<?php echo $config['cf_req_addr']?'<strong class="sound_only"> 필수</strong>':''; ?></label></p><p>                <input type="text" name="mb_zip2" value="<?php echo $member['mb_zip2'] ?>" id="reg_mb_zip2" <?php echo $config['cf_req_addr']?"required":""; ?> class="frm_input <?php echo $config['cf_req_addr']?"required":""; ?>" size="3" maxlength="3"></p><p><strong style="color: rgb(127, 127, 127); font-family: 돋움, Dotum, sans-serif; font-size: 12px; letter-spacing: -0.01px; line-height: normal;">