Question

更新：

我设法纠正了一些事情。但只插入第一行。如果未选择第一行，则不会插入任何内容。

我只希望从填充的表中选中的复选框插入到新表中。

我的表格如下：

<table id="simple-table" class="table table-striped table-condensed responsive">
            <thead>
                <tr>
                   <th style="width:5%" class="center">
                      <label class="pos-rel">
                         <input type="checkbox" name="checked" class="ace" />
                         <span class="lbl"></span>
                     </label>
                 </th>
                 <th style="width:32%">Student Name</th>
                 <th style="width:13%">Adm. No</th>
                 <th style="width:10%" class="center">CA1 (10%)</th>
                 <th style="width:10%" class="center">CA2 (10%)</th>
                 <th style="width:10%" class="center">CA3 (10%)</th>
                 <th style="width:10%" class="center">Exam (70%)</th>
                 <th style="width:10%" class="center">Total (100%)</th>

             </tr>
         </thead>
         <tbody>
            <?php

            if(isset($_POST['loadStudents'])){

                $session = clean($_POST["session"]);
                $term = clean($_POST["term"]);
                $c_taught = clean($_POST["c_taught"]);
                $s_taught = clean($_POST["s_taught"]);
                $process_limit = clean($_POST["process_limit"]);
                $session_phrase = "Session";

                $sql = "SELECT `id`, `StudentID`, `StudentName` FROM tbl_students WHERE `StudentClass` = '".$c_taught."' ORDER BY `StudentName` ";

                $result = $conn->query($sql);
                if ($result->num_rows > 0) {
                                            // output data of each row
                    $cnt=1;
                    while($row = $result->fetch_assoc()) { 
                       $id = $row['id']; 
                       $student_name = $row['StudentName'];
                       $student_id = $row['StudentID'];
                       ?>
                       <tr>
                           <td class="center">
                              <label class="pos-rel">
                                 <input type="checkbox" class="ace" name="checked[]" value="<?php echo $row['id'];?>" />
                                 <span class="lbl"></span>
                             </label>
                         </td>
                         <td><?php echo $student_name; ?><input type="hidden" name="student_name[]" value="<?php echo $row['StudentName']; ?>"/></td>
                         <td><?php echo $student_id; ?><input type="hidden" name="student_id[]" value="<?php echo $row['StudentID']; ?>"/></td>
                         <td class="center"><?php echo '<input type="text" maxlength="2" size="6" name="CA1[]" autofocus>'; ?></td>
                         <td class="center"><?php echo '<input type="text" maxlength="2" size="6" name="CA2[]">'; ?></td>
                         <td class="center"><?php echo '<input type="text" maxlength="2" size="6" name="CA3[]">'; ?></td>
                         <td class="center"><?php echo '<input type="text" maxlength="2" size="6" name="Exam[]">'; ?></td>
                         <td class="center"><?php echo '<input type="text" maxlength="2" size="6" name="Total[]">'; ?></td>                
                     </tr>
                     <?php $cnt=$cnt+1;}}
                     else {
                        $msg = "<span class='red'><h4> No data available for your selection. </h4></span>";  
                    }
                }

                ?>
            </tbody>
        </table>

我的插图脚本如下:(与表格在同一页面上）

<?php
$enroll_sql = "";
if(isset($_POST['add_assessment'])) {
if(empty($_POST['checked'])){
    echo '<script>alertify.alert("No Student is selected.",function(e){if(e){document.location.href = "cass_entry.php";}}).set("labels", {ok:"OK!"}).set("defaultFocus", "ok").set("title", "Assessment")
    </script>';
    exit();

}

foreach($_POST['checked'] as $id=>$value) {
    $session = $_POST['session'];
    $term = $_POST['term'];
    $c_taught = $_POST['c_taught'];
    $s_taught = $_POST['s_taught'];
    $student_id = $_POST['student_id'][$id];
    $student_name = $_POST['student_name'][$id];
    $ca_1 = $_POST['CA1'][$id];
    $ca_2 = $_POST['CA2'][$id];
    $ca_3 = $_POST['CA3'][$id];
    $exam = $_POST['Exam'][$id];
    $total = $_POST['Total'][$id];

    $enroll_sql .= '
    INSERT INTO tbl_subjects_enrollment (`Session`,`Term`,`Student_Class`,`Subject_Name`,`Student_ID`,`Student_Name`,`CA_1`,`CA_2`,`CA_3`,`Exam`,`Total`) 
    VALUES("'.$session.'", "'.$term.'", "'.$c_taught.'", "'.$s_taught.'", "'.$student_id.'", "'.$student_name.'", "'.$ca_1.'", "'.$ca_2.'", "'.$ca_3.'", "'.$exam.'", "'.$total.'")';

    echo $enroll_sql;

    if (mysqli_multi_query($conn, $enroll_sql)) {
        $success_msg = '<div class="alert alert-success">
        <button type="button" class="close" data-dismiss="alert">
        <i class="ace-icon fa fa-times"></i>
        </button>
        <h4><i class="ace-icon fa fa-check"> Success</i></h4>
        <p>Assessment scores were successfully saved.</p></div>';

    } else {
        echo "Error saving Assessment: " . $conn->error;
    }
}
}
?>

Answer 1

注意，您的第一个复选框未命名为数组且没有值：

<input type="checkbox" name="checked" class="ace" />

这可能会导致一个简单的var $ _POST ['checked']，它不是一个数组（也不是一个字符串，因为它没有值），并且不会在你的foreach中传递。

Answer 2

看：

foreach($_POST['checked'] as $id=>$value) {

$enroll_sql .= '
INSERT INTO tbl_subjects_enrollment (`Session`,`Term`,`Student_Class`,`Subject_Name`,`Student_ID`,`Student_Name`,`CA_1`,`CA_2`,`CA_3`,`Exam`,`Total`) 
VALUES("'.$session.'", "'.$term.'", "'.$c_taught.'", "'.$s_taught.'", "'.$student_id.'", "'.$student_name.'", "'.$ca_1.'", "'.$ca_2.'", "'.$ca_3.'", "'.$exam.'", "'.$total.'")';

echo $enroll_sql;

if (mysqli_multi_query($conn, $enroll_sql)) {
    $success_msg = '<div class="alert alert-success">
    <button type="button" class="close" data-dismiss="alert">
    <i class="ace-icon fa fa-times"></i>
    </button>
    <h4><i class="ace-icon fa fa-check"> Success</i></h4>
    <p>Assessment scores were successfully saved.</p></div>';

} else {
    echo "Error saving Assessment: " . $conn->error;
}
}

每次连接SQL查询=＆gt;并在每次添加先前的查询时执行它。如果你没有忘记你的分号，它会结束插入相同行的太多时间（实际上这就是为什么只有第一个Insert正在工作）。

此处的问题是查询与查询的缺失分号的串联。

为了使您的代码正常工作，您必须不要连接您的查询：
$enroll_sql = '...'; // = not .=
OR
让它连接但是执行查询 OUTSIDE 你的foreach循环（并在SQL查询的末尾添加一个分号：
, "'.$total.'");'; // ; at the end of the query

Answer 3

我要感谢所有贡献者，特别是@WizardNx。

我最终解决了它（必要性是创造力的母亲）：

似乎复选框没有为每一行分配唯一的id。事实上，如果我选中row_3并填写所有输入，则会为row_1插入，但会分配row_3 id。

这是我做的：

<tr>
   <td class="center">
       <label class="pos-rel">
          <input type="checkbox" class="ace" name="studentSelect[<?php echo $row['id']; ?>]" value="<?php echo $row['StudentID']; ?>" />
            <span class="lbl"></span>
       </label>
  </td>
  <td><?php echo $row['StudentName']; ?><input type="hidden" name="student_name[<?php echo $row['id']; ?>]" value="<?php echo $row['StudentName']; ?>"/></td>
  <td><?php echo $row['StudentID']; ?></td>
  <td class="center"><input type="text" maxlength="2" size="6" name="CA1[<?php echo $row['id']; ?>]" autofocus></td>
  <td class="center"><input type="text" maxlength="2" size="6" name="CA2[<?php echo $row['id']; ?>]"></td>
  <td class="center"><input type="text" maxlength="2" size="6" name="CA3[<?php echo $row['id']; ?>]"></td>
  <td class="center"><input type="text" maxlength="2" size="6" name="Exam[<?php echo $row['id']; ?>]"></td>
  <td class="center"><input type="text" maxlength="2" size="6" name="Total[<?php echo $row['id']; ?>]"></td>
</tr>

我在每行的每个输入中添加了id。

在foreach中只插入一行

3 个答案: