php - 使用 onclick 函数插入数据库

Question

我正在开发一种基于类(class)明智、主题明智的问题搜索引擎，通过输入关键字或问题。在这里，我根据 3 个表(即 table_one、table_two 和 table_third)的搜索词查询数据库。代码如下

<?php
 if(isset($_GET['submit']))
 {
   $query = $_GET['query'];
   $query = htmlspecialchars($query);
   $query = mysqli_escape_string($link,$query);
   $searchTerms = explode(' ', $query);
   $searchTermBits = array();
   foreach ($searchTerms as $term) {
    $term = trim($term);
    if (!empty($term)) {
        $searchTermBits[] = "question LIKE '%$term%'";
    }
  }

 $subject_id = $_GET['subject'];
 $course_id = $_GET['course'];
 $min_length = 1;
 if(strlen($query) >= $min_length)
 {

  $res = "SELECT id,course_id,subject_id,question,option_a,option_b,option_c,option_d,option_e,correct_ans,fmge_year,contributor FROM table_one
WHERE (".implode(' OR ', $searchTermBits).") AND (`subject_id` LIKE '%".$subject_id."%') AND (`course_id` LIKE '%".$course_id."%')
UNION ALL
SELECT id,course_id,subject_id,question,option_a,option_b,option_c,option_d,option_e,correct_ans,fmge_year,contributor FROM table_two 
WHERE (".implode(' OR ', $searchTermBits).") AND (`subject_id` LIKE '%".$subject_id."%') AND (`course_id` LIKE '%".$course_id."%')
UNION ALL
SELECT id,course_id,subject_id,question,option_a,option_b,option_c,option_d,option_e,correct_ans,fmge_year,contributor FROM table_three 
WHERE (".implode(' OR ', $searchTermBits).") AND (`subject_id` LIKE '%".$subject_id."%') AND (`course_id` LIKE '%".$course_id."%')";

$raw_results = mysqli_query($link,$res) or die (mysqli_error());
if(mysqli_num_rows($raw_results) > 0)   
{
echo "<h3 style='text-align:center;color:#3366CC'><span style='color:#000000'>Search Results For : </span> $query </h3>";
while($results = mysqli_fetch_array($raw_results))
{
echo "<div class='content'>";
echo"<h4 id=".$results['id'].">" .preg_replace("/".preg_quote($query, "/")."/i", "<span class=\"highlight\">$query</span>", $results['question']) . "</h4>";
echo"<p id=".$results['id']."><span style='padding-left:20px'>option A : " .$results['option_a']."</span> <br><span style='padding-left:20px'> option B : ".$results['option_b']."</span><br/><span style='padding-left:20px'>option C : ".$results['option_c'].
"</span><br><span style='padding-left:20px'>option D : ".$results['option_d']."</span><br><span style='padding-left:20px'> option E : ".$results['option_e']."</span><br><span style='color:#253E66;font-weight:bold;padding-left:20px'>Correct Ans : ".$results['correct_ans']. 
"</span><br><span style='padding-left:20px'>Question Year : ".$results['question_year']."</span><br><span style='padding-left:20px'>Contributor : ".$results['contributor']."</span><br />
<a onclick=addQuestion('".$results['id']."') href='#'><span class='button'>Add to Question Bank</span></a></p>";
echo "</div>";
}
}
else{

echo "<span style='height:21px;syle=background-color: #F1F0FF;font-size:25px;color:#CC0000'>Your search - $query - did not match any queries.</span> ";
}
}
}
?>

当我单击“添加到问题库”链接时，我将调用以下 addQuestion() 函数。

    <script>
    function addQuestion(val)
    {
        var conf=confirm("Are you sure you want to add this question to Question Bank")

        if(conf){
             //Here I Want some code to update my database. 
              }
    }
</script>

当我单击按钮时，上面的脚本显示确认框，我的问题是，确认后，我想将我的问题插入数据库中的新表中，并在问题前面永久显示“已添加问题”之类的消息，因为我知道我无法在 Jquery 函数中编写 PHP 任何帮助都可能会受到赞赏。

Answer 1

您可以通过包含 ajax 来实现此目的。输入可能如下所示的ajax代码:

if(conf){
    $.ajax({
           type: "POST",
           url: "$$phpfilepath",
           data: {param:'$$value'},
           success: function(data) {
        // do the message display code
           }
       });
}

不要忘记在 html 页面的 head 标签中包含 jquery cdn 链接。