여분 필드 게시물 수정 시 풀려요... ㅠㅠ

// 테스트<?php echo "변수 wr_go의 값 : " . $wr_go; exit;?> <div class="form-group">
    <label class="col-sm-2 control-label" for="wr_go">참여</label>
    <div class="col-sm-10">
        <label class="control-label sp-label">
            <input type="radio" name="wr_go" itemname="wr_go" value="0" <?php if($wr_go == "0") { echo "checked=\"checked\""; } ?> label="0"  required/> 간다
        </label>
        <label class="control-label sp-label">
            <input type="radio" name="wr_go" itemname="wr_go" value="1" <?php if($wr_go == "1") { echo "checked=\"checked\""; } ?> label="1"  required/> 안간다
        </label>
    </div>
</div>