php - 基于选定字段的报告生成

Question

我目前所做的是，我使用 AJAX 在具有搜索结果 ID 的 div 中显示搜索记录的所有列，然后我提供打印选项以打印这些记录。现在我希望能够选择一组列(为此目的，我为所有列提供了一个复选框)并仅打印选定的列。我可以在 php 文件中获取选定的列，但如何从这些选定的列值中构建查询。我的意思是可以有这么多不同的组合。代码到现在..

                <?php




                 echo ' <table border="1">
                        <tr>
                        <td class="lab searchtableheader" style="color:#cd0000; padding:5px;"><input type="checkbox" name="print" value="facultyname" /><br>FACULTY</td>
                        <td class="lab searchtableheader" style="color:#de0000; padding:5px;"><input type="checkbox" name="print" value="departmentname" /><br>DEPT.</td>
                        <td class="lab searchtableheader" style="color:#ef0000; padding:5px;"><input type="checkbox" name="print" value="coursename" /><br>COURSE</td>
                        <td class="lab searchtableheader" style="color:#ff0000; padding:5px;"><input type="checkbox" name="print" value="year" /><br>YEAR </td>
                        <td class="lab searchtableheader" style="color:#f50853; padding:5px;"><input type="checkbox" name="print" value="semester" /><br>SEM. </td>
                        <td class="lab searchtableheader" style="color:#f5087e; padding:5px;"><input type="checkbox" name="print" value="studentname" /><br>NAME  </td>
                        <td class="lab searchtableheader" style="color:#f508dd; padding:5px;"><input type="checkbox" name="print" value="enrollment" /><br>ENROLL. </td>
                        <td class="lab searchtableheader" style="color:#c108f5; padding:5px;"><input type="checkbox" name="print" value="courseseatcategory" /><br>SEAT CATEGORY</td> 
                        <td class="lab searchtableheader" style="color:#7e08f5; padding:5px;"><input type="checkbox" name="print" value="gender" /><br>GENDER </td>
                        <td class="lab searchtableheader" style="color:#3f08f5; padding:5px;"><input type="checkbox" name="print" value="dob" /><br>D.O.B</td>
                        <td class="lab searchtableheader" style="color:#2f95f4; padding:5px;"><input type="checkbox" name="print" value="religion" /><br>RELIGION </td>
                        <td class="lab searchtableheader" style="color:#9f4ef0; padding:5px;"><input type="checkbox" name="print" value="category" /><br>CATEGORY </td>
                        <td class="lab searchtableheader" style="color:#ee4ef0; padding:5px;"><input type="checkbox" name="print" value="country" /><br>COUNTRY </td>
                        <td class="lab searchtableheader" style="color:#f70767; padding:5px;"><input type="checkbox" name="print" value="state" /><br>STATE </td>
                        <td class="lab searchtableheader" style="color:#ef4ef0; padding:5px;"><input type="checkbox" name="print" value="internal" /><br>INTERNAL </td>
                        <td class="lab searchtableheader" style="color:#2e95f3; padding:5px;"><input type="checkbox" name="print" value="ph" /><br>PH </td>
                        <td class="lab searchtableheader" style="color:#7e08f1; padding:5px;"><input type="checkbox" name="print" value="dor" /><br>D.O.R </td>
                        <td class="lab searchtableheader" style="color:#f508aa; padding:5px;"><input type="checkbox" name="print" value="supervisior" /><br>SUPERVISOR </td>
                        <td class="lab searchtableheader" style="color:#ff0000; padding:5px;"><input type="checkbox" name="print" value="cosupervisor" /><br>COSUPERVISOR </td>
                        <td class="lab searchtableheader" style="color:#9f4ef0; padding:5px;"><input type="checkbox" name="print" value="titleofthesis" /><br>TITLE of THESIS</td>
                        <td class="lab searchtableheader" style="color:#2f95f4; padding:5px;"><input type="checkbox" name="print" value="mou" /><br>MOU </td>
                        <td class="lab searchtableheader" style="color:#7e08f5; padding:5px;"><input type="checkbox" name="print" value="mouinstitute" /><br>MOU INSTITUTE </td>

                        </tr>       ';?>

JavaScript 打印:

function printDiv()
{
  var divToPrint=document.getElementById('searchresults');
  newWin= window.open("");
  newWin.document.write(divToPrint.outerHTML);
  newWin.print();
  newWin.close();
}

Answer 1

首先，您需要将 name="print"更改为 name="print[]"，以便 php 可以获取所有选定的值。

无论您是使用 post 还是继续提交信息，您都需要循环遍历发送的值。该信息将在打印数组中。

$prn = $_POST['print'];
$sql = "SELECT ";
$flds = "";
foreach( $prn as $p ) {
  if( $flds != "" ) $flds .= ",";
  $flds .= $p
}
$sql .= $flds . " FROM ....

请注意代码未经测试，但它应该给你一个起点