form과 post 방식

<div style="width:80%; margin:0 auto; text-align:center;">
        <form action="insert.php" method="post" name="info">
            <div style="display:inline-block; width:95%;">
                <font size="6" color="#5F00FF">거래처 관리 - 추가/수정</font>
                <input class="btn btn-primary btn-lg" type="submit" value="저장" style="margin-left:50%;">
            </div>
 
            <div style="display:inline-block; border:1px solid gray; width:80%; margin-top:10px;"></div>
 
            <div style="padding-top:10px;">
 
                    <table class="table table-bordered" style="width:80%; margin:0 auto;">
                        <tr>
                            <td class="indx" style="width:30%;"><b>구분</b></td>
                            <td><input type="radio" name="chk" value=1> 매출처&nbsp;&nbsp;&nbsp;<input type="radio" name="chk" value=2> 매입처</td>
                        </tr>
                        <tr>
                            <td><b>회사명</b></td>
                            <td><input type="text" placeholder="회사명을 입력하세요." name="company_name"></td>
                        </tr>
                        <tr>
                            <td><b>사업자등록번호</b></td>
                            <td><input type="text" placeholder="사업자등록번호를 입력하세요." name="reg_num"></td>
                        </tr>
                        <tr>
                            <td><b>대표자</b></td>
                            <td><input type="text" placeholder="대표자를 입력하세요." name="ceo"></td>
                        </tr>
                        <tr>
                            <td><b>대표전화번호</b></td>
                            <td><input type="text" placeholder="대표전화번호를 입력하세요." name="ceo_phone"></td>
                        </tr>
                        <tr>
                            <td><b>팩스</b></td>
                            <td><input type="text" placeholder="팩스를 입력하세요." name="fax"></td>
                        </tr>
                        <tr>
                            <td><b>담당자명</b></td>
                            <td><input type="text" placeholder="담당자명를 입력하세요." name="manager"></td>
                        </tr>
                        <tr>
                            <td><b>담당자 이메일</b></td>
                            <td><input type="text" placeholder="담당자 이메일를 입력하세요." name="manager_email"></td>
                        </tr>
                        <tr>
                            <td><b>홈페이지 주소</b></td>
                            <td><input type="text" placeholder="홈페이지 주소를 입력하세요." name="address"></td>
                        </tr>
                        <tr>
                            <td><b>업체대표사진</b></td>
                            <td><input type="text" placeholder="업체대표사진를 첨부하세요." name="company_image"></td>
                        </tr>
                        <tr style="height:250px;">
                            <td><b>비고</b></td>
                            <td><textarea placeholder="비고를 입력하세요." name="etc"></textarea></td>
                        </tr>
                    </table>
                </form>
 
        </div>
    </div>