選擇“已選中”單選按鈕的值，並顯示在另一個div中，或轉發回另一個PHP

Question

有從MySQL數據庫中的表如下1.數據從用戶即“SchoolID”“StudCourse”“StudentSection”通過Ajax調用發送到PHP PHP 2給出的結果是用戶名和三個單選按鈕目前，不存在和發表反對那位學生3.我需要的是捕獲單選按鈕數據，然后單擊該單選按鈕將其發送回另一個PHP，該名稱或在另一個div中顯示也可以。

資料庫

  SchoolID   StudentRegID    StudentFirstName StudCourse   StudentSection 
    FT001     12KQC31085        ABC             BCOM             A
    FT001     12KQC31086        DEF             BCOM             A        
    FT001     12KQC31087        GHI             BCOM             A  
    FT001     12KQC31088        JKL             BCOM             A  


$mysqli=mysqli_connect('localhost','Uname','Pass','Database');

       //data from ajax
$standard1 = trim($_POST["tclass"]);
$section1 = trim($_POST["tsection"]);
$SchoolID1 = trim($_POST["tschoolid"]);

$query3="SELECT * FROM euser_student  WHERE  StudCourse='$standard1' and SchoolID='$SchoolID1'and StudentSection='$section1' order by StudentFirstName   ASC";
$data3=mysqli_query($mysqli,$query3)or die(mysqli_error());

while($row=mysqli_fetch_array($data3)){
    $dat3 = $row['StudentFirstName'];


    // data to ajax to display data in a div
    echo "<table><tr><td>".$dat3."</td><td><input name='".$dat3."' type='radio' value='Present'>Present</td><td><input name='".$dat3."' type='radio' value='Absent'>Absent</td><td><input name='".$dat3."' type='radio' value='Leave'>Leave</td></tr></table>";
}

最終淘汰

                ABC         O Present   O Absent    O Leave
                DEF         O Present   O Absent    O Leave
                GHI         O Present   O Absent    O Leave
                JKL         O Present   O Absent    O Leave


<input type="submit" id="submit_data" > </input>

Answer 1

首先，兩件事。

• 逃脫！ 不要在轉義中使用用戶數據。 （我使用sprintf進行查詢，您不必這樣做）
• 發布和獲取：發布是指用戶將數據添加到網站，例如評論。 我認為這是純粹的GET事情

---

我認為這看起來像您想要的。

index.php

<form id="my_form" method="get" action="ajax1.php">
  <input name="tclass" value="BCOM">
  <input name="tschoolid" value="FT001">
  <input name="tsection" value="A">
  <input type="submit" value="GO">
</form>
<hr>
<form id="my_radios"></form>
<hr>
<div id="message"></div>

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script>
$(document).ready(function() {
  // client selects the school, section, class
  $('#my_form').submit(function(e) {
    // prevent the form submitting and leaving the webpage
    e.preventDefault();
    // ajax call
    $.ajax({
      url: 'ajax1.php',
      data: $(this).serialize(),    // reads the data ...
      success: function(data) {
        $('#my_radios').html(data + '<input type="submit">');
      }
    });
  });
  // radio buttons
  $('#my_radios').submit(function(e) {
    e.preventDefault();
    $.ajax({
      url: 'ajax2.php',
      data: $(this).serialize(),    // reads the data ...
      success: function(data) {
        $('#message').html(data);
      }
    });
  });
});
</script>

ajax1.php

<?php
/*
CREATE TABLE IF NOT EXISTS euser_student (
  SchoolID varchar(25) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL,
  StudentRegID varchar(25) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL,
  StudentFirstName varchar(25) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL,
  StudCourse varchar(25) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL,
  StudentSection varchar(25) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci;

INSERT INTO euser_student (SchoolID, StudentRegID, StudentFirstName, StudCourse, StudentSection) VALUES
('FT001', '12KQC31085', 'ABC', 'BCOM', 'A'),
('FT001', '12KQC31086', 'DEF', 'BCOM', 'A'),
('FT001', '12KQC31087', 'GHI', 'BCOM', 'A'),
('FT001', '12KQC31088', 'JKL', 'BCOM', 'A')
*/

$mysqli=mysqli_connect('localhost', 'root', '', 'stackoverflow');  // put your own settings here
$query3=sprintf("
  SELECT StudentFirstName FROM euser_student 
  WHERE StudCourse='%s' and SchoolID='%s' AND StudentSection='%s' 
  ORDER BY StudentFirstName ASC"
    , mysql_real_escape_string(trim($_GET["tclass"]))  // don't ever ever use user data in a query without escaping (or casting to number), not even in test phase.  There is absolutely no excuse
    , mysql_real_escape_string(trim($_GET["tschoolid"]))
    , mysql_real_escape_string(trim($_GET["tsection"]))
);
$res3=mysqli_query($mysqli, $query3);
echo '<table border="1">';
for($i=0; $row=mysqli_fetch_assoc($res3); $i++) {
  $dat3 = $row['StudentFirstName'];
  // data to ajax to display data in a div
  // we put the student's name in a hidden input
  echo "<tr>
    <td>" . $dat3 . " <input type='hidden' name='student[" . $i . "]' value='" . $dat3 . "'></td>
    <td><input name='present[" . $i . "]' type='radio' value='Present'>Present</td>
    <td><input name='present[" . $i . "]' type='radio' value='Absent'>Absent</td>
    <td><input name='present[" . $i . "]' type='radio' value='Leave'>Leave</td>
  </tr>";
}
echo '</table>';
?>

ajax2.php

<?php
// $_GET['present'] and $_GET['student'] are arrays.
foreach($_GET['student'] as $i=>$student) {
  $sql = sprintf(
    "INSERT INTO student_present (studentID, present) VALUES ('%s', '%s');"
      , mysql_real_escape_string(trim($_GET['student'][$i]))
      , mysql_real_escape_string(trim($_GET['present'][$i]))
  );
  // do what ever you need to do with this.  I just display the sql query
  echo $sql . '<br>';
}
?>