여분 필더값이 수정할때 필더에 보이게 하는 방법

<?php
if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가

// add_stylesheet('css 구문', 출력순서); 숫자가 작을 수록 먼저 출력됨
add_stylesheet('<link rel="stylesheet" href="'.$board_skin_url.'/style.css">', 0);
?>

<section id="bo_w">
    <h2 class="sound_only"><?php echo $g5['title'] ?></h2>

    <!-- 게시물 작성/수정 시작 { -->
    <form name="fwrite" id="fwrite" action="<?php echo $action_url ?>" onsubmit="return fwrite_submit(this);" method="post" enctype="multipart/form-data" autocomplete="off" style="width:<?php echo $width; ?>">
    <input type="hidden" name="uid" value="<?php echo get_uniqid(); ?>">
    <input type="hidden" name="w" value="<?php echo $w ?>">
    <input type="hidden" name="bo_table" value="<?php echo $bo_table ?>">
    <input type="hidden" name="wr_id" value="<?php echo $wr_id ?>">
    <input type="hidden" name="sca" value="<?php echo $sca ?>">
    <input type="hidden" name="sfl" value="<?php echo $sfl ?>">
    <input type="hidden" name="stx" value="<?php echo $stx ?>">
    <input type="hidden" name="spt" value="<?php echo $spt ?>">
    <input type="hidden" name="sst" value="<?php echo $sst ?>">
    <input type="hidden" name="sod" value="<?php echo $sod ?>">
    <input type="hidden" name="page" value="<?php echo $page ?>">
    <?php
    $option = '';
    $option_hidden = '';
    if ($is_notice || $is_html || $is_secret || $is_mail) { 
        $option = '';
        if ($is_notice) {
            $option .= PHP_EOL.'<li class="chk_box"><input type="checkbox" id="notice" name="notice"  class="selec_chk" value="1" '.$notice_checked.'>'.PHP_EOL.'<label for="notice"><span></span>공지</label></li>';
        }
        if ($is_html) {
            if ($is_dhtml_editor) {
                $option_hidden .= '<input type="hidden" value="html1" name="html">';
            } else {
                $option .= PHP_EOL.'<li class="chk_box"><input type="checkbox" id="html" name="html" onclick="html_auto_br(this);" class="selec_chk" value="'.$html_value.'" '.$html_checked.'>'.PHP_EOL.'<label for="html"><span></span>html</label></li>';
            }
        }
        if ($is_secret) {
            if ($is_admin || $is_secret==1) {
                $option .= PHP_EOL.'<li class="chk_box"><input type="checkbox" id="secret" name="secret"  class="selec_chk" value="secret" '.$secret_checked.'>'.PHP_EOL.'<label for="secret"><span></span>비밀글</label></li>';
            } else {
                $option_hidden .= '<input type="hidden" name="secret" value="secret">';
            }
        }
        if ($is_mail) {
            $option .= PHP_EOL.'<li class="chk_box"><input type="checkbox" id="mail" name="mail"  class="selec_chk" value="mail" '.$recv_email_checked.'>'.PHP_EOL.'<label for="mail"><span></span>답변메일받기</label></li>';
        }
    }
    echo $option_hidden;
    ?>

    <?php if ($is_category) { ?>
    <div class="bo_w_select write_div">
        <label for="ca_name" class="sound_only">분류<strong>필수</strong></label>
        <select name="ca_name" id="ca_name" required>
            <option value="">분류를 선택하세요</option>
            <?php echo $category_option ?>
        </select>
    </div>
    <?php } ?>

    <div class="bo_w_info write_div">
        <?php if ($is_name) { ?>
            <label for="wr_name" class="sound_only">이름<strong>필수</strong></label>
            <input type="text" name="wr_name" value="<?php echo $name ?>" id="wr_name" required class="frm_input half_input required" placeholder="이름">
        <?php } ?>
    
        <?php if ($is_password) { ?>
            <label for="wr_password" class="sound_only">비밀번호<strong>필수</strong></label>
            <input type="password" name="wr_password" id="wr_password" <?php echo $password_required ?> class="frm_input half_input <?php echo $password_required ?>" placeholder="비밀번호">
        <?php } ?>
    
        <?php if ($is_email) { ?>
            <label for="wr_email" class="sound_only">이메일</label>
            <input type="text" name="wr_email" value="<?php echo $email ?>" id="wr_email" class="frm_input half_input email " placeholder="이메일">
        <?php } ?>
        
        <?php if ($is_homepage) { ?>
            <label for="wr_homepage" class="sound_only">홈페이지</label>
            <input type="text" name="wr_homepage" value="<?php echo $homepage ?>" id="wr_homepage" class="frm_input half_input" size="50" placeholder="홈페이지">
        <?php } ?>
    </div>
    
    <?php if ($option) { ?>
    <div class="write_div">
        <span class="sound_only">옵션</span>
        <ul class="bo_v_option">
        <?php echo $option ?>
        </ul>
    </div>
    <?php } ?>

    <div class="bo_w_tit write_div">
    <label for="wr_subject" class="sound_only">제목<strong>필수</strong></label>
    <div id="autosave_wrapper" class="write_div">
        <input type="text" name="wr_subject" value="<?php echo $subject ?>" id="wr_subject" required class="frm_input full_input required" size="50" maxlength="255" placeholder="제목">
        <?php if ($is_member) { // 임시 저장된 글 기능 ?>
        <script src="<?php echo G5_JS_URL; ?>/autosave.js"></script>
        <?php if($editor_content_js) echo $editor_content_js; ?>
        <button type="button" id="btn_autosave" class="btn_frmline">임시 저장된 글 (<span id="autosave_count"><?php echo $autosave_count; ?></span>)</button>
        <div id="autosave_pop">
            <strong>임시 저장된 글 목록</strong>
            <ul></ul>
            <div><button type="button" class="autosave_close">닫기</button></div>
        </div>
        <?php } ?>
    </div>
</div>

<!-- 공사기간 입력란 -->
<div class="write_div">
    <label for="wr_1" class="sound_only">공사기간</label>
    <input type="text" name="wr_1" id="wr_1" class="frm_input full_input" 
           placeholder="공사기간을 입력하세요." 
           value="<?php echo isset($view['wr_1']) ? htmlspecialchars($view['wr_1'], ENT_QUOTES) : ''; ?>">
</div>

<!-- 공사분야 입력란 -->
<div class="write_div">
    <label for="wr_2" class="sound_only">공사분야</label>
    <input type="text" name="wr_2" id="wr_2" class="frm_input full_input" 
           placeholder="공사분야를 입력하세요." 
           value="<?php echo isset($view['wr_2']) ? htmlspecialchars($view['wr_2'], ENT_QUOTES) : ''; ?>">
</div>
    <div class="write_div">
        <label for="wr_content" class="sound_only">내용<strong>필수</strong></label>
        <div class="wr_content <?php echo $is_dhtml_editor ? $config['cf_editor'] : ''; ?>">
            <?php if($write_min || $write_max) { ?>
            <!-- 최소/최대 글자 수 사용 시 -->
            <p id="char_count_desc">이 게시판은 최소 <strong><?php echo $write_min; ?></strong>글자 이상, 최대 <strong><?php echo $write_max; ?></strong>글자 이하까지 글을 쓰실 수 있습니다.</p>
            <?php } ?>
            <?php echo $editor_html; // 에디터 사용시는 에디터로, 아니면 textarea 로 노출 ?>
            <?php if($write_min || $write_max) { ?>
            <!-- 최소/최대 글자 수 사용 시 -->
            <div id="char_count_wrap"><span id="char_count"></span>글자</div>
            <?php } ?>
        </div>
        
    </div>

    <?php for ($i=1; $is_link && $i<=G5_LINK_COUNT; $i++) { ?>
    <div class="bo_w_link write_div">
        <label for="wr_link<?php echo $i ?>"><i class="fa fa-link" aria-hidden="true"></i><span class="sound_only"> 링크  #<?php echo $i ?></span></label>
        <input type="text" name="wr_link<?php echo $i ?>" value="<?php if($w=="u"){ echo $write['wr_link'.$i]; } ?>" id="wr_link<?php echo $i ?>" class="frm_input full_input" size="50">
    </div>
    <?php } ?>

    <?php for ($i=0; $is_file && $i<$file_count; $i++) { ?>
    <div class="bo_w_flie write_div">
        <div class="file_wr write_div">
            <label for="bf_file_<?php echo $i+1 ?>" class="lb_icon"><i class="fa fa-folder-open" aria-hidden="true"></i><span class="sound_only"> 파일 #<?php echo $i+1 ?></span></label>
            <input type="file" name="bf_file[]" id="bf_file_<?php echo $i+1 ?>" title="파일첨부 <?php echo $i+1 ?> : 용량 <?php echo $upload_max_filesize ?> 이하만 업로드 가능" class="frm_file ">
        </div>
        <?php if ($is_file_content) { ?>
        <input type="text" name="bf_content[]" value="<?php echo ($w == 'u') ? $file[$i]['bf_content'] : ''; ?>" title="파일 설명을 입력해주세요." class="full_input frm_input" size="50" placeholder="파일 설명을 입력해주세요.">
        <?php } ?>

        <?php if($w == 'u' && $file[$i]['file']) { ?>
        <span class="file_del">
            <input type="checkbox" id="bf_file_del<?php echo $i ?>" name="bf_file_del[<?php echo $i;  ?>]" value="1"> <label for="bf_file_del<?php echo $i ?>"><?php echo $file[$i]['source'].'('.$file[$i]['size'].')';  ?> 파일 삭제</label>
        </span>
        <?php } ?>
        
    </div>
    <?php } ?>


    <?php if ($is_use_captcha) { //자동등록방지  ?>
    <div class="write_div">
        <?php echo $captcha_html ?>
    </div>
    <?php } ?>

    <div class="btn_confirm write_div">
        <a href="<?php echo get_pretty_url($bo_table); ?>" class="btn_cancel btn">취소</a>
        <button type="submit" id="btn_submit" accesskey="s" class="btn_submit btn">작성완료</button>
    </div>
    </form>