Question

我想制作一个简单的搜索栏。搜索栏通过JQuery将数据发送到PHP（执行搜索）。数据通过回调函数发送回HTML。搜索功能正常运行。但是，每次输入搜索输入时，整个页面都会重复。我不知道为什么会这样做。正在从MySQL数据库中提取数据。

<?php
session_start();
include("connection/connection.php");
if(isset($_POST['search_term'])){
    $search_term = mysqli_real_escape_string($db_connect,htmlentities($_POST['search_term']));

if(!empty($search_term)){
    $sql_search = "SELECT first FROM students_register WHERE first LIKE '%$search_term%' ";
    $result_search = $db_connect->query($sql_search);
    $result_count = $result_search->num_rows;

    $suffix = ($result_count != 1) ? 's' : '';
    echo "<p>Your search for <strong>" .$search_term. " </strong>has returned <strong>".$result_count."</strong> result" .$suffix. "</p>";

    while($results_row = $result_search->fetch_assoc()){
        echo "<p><strong>".$results_row['first']."</strong></p>";
        }
    }

    }
?>
<!DOCTYPE html>
<html>
    <head>
    <title></title>
    <script type="text/javascript" src="js/jquery.js"></script>
</head>
<body>
    Search: <input id="search" name="search" placeholder="search">
    <span id="search_display"></span>
</body>
    <script type="text/javascript">


    $("#search").keyup(function(){
        var search_term = $(this).val(); 

        $.post('test2.php', {search_term : search_term}, function(result){
            $("#search_display").html(result);

        });

    });
    </script>
</html>

``

Answer 1

我的问题是test2.php，你的html页面也是同一页？

尝试两页，

<?php // test2.php
  session_start();
  include("connection/connection.php");
 if(isset($_POST['search_term'])){
      $search_term = mysqli_real_escape_string($db_connect,htmlentities($_POST['search_term']));

   if(!empty($search_term)){
     $sql_search = "SELECT first FROM students_register WHERE first LIKE '%$search_term%' ";
     $result_search = $db_connect->query($sql_search);
     $result_count = $result_search->num_rows;

     $suffix = ($result_count != 1) ? 's' : '';
     echo "<p>Your search for <strong>" .$search_term. " </strong>has returned <strong>".$result_count."</strong> result" .$suffix. "</p>";

    while($results_row = $result_search->fetch_assoc()){
       echo "<p><strong>".$results_row['first']."</strong></p>";
    }
  }

}

＆GT？; 而Html包含另一个页面

<!DOCTYPE html>  
<html>
<head>
  <title>Index.html</title>
  <script type="text/javascript" src="js/jquery.js"></script>


 </head>
   <body>
 Search: <input id="search" name="search" placeholder="search">
   <span id="search_display"></span>

<script type="text/javascript"> 
       $("#search").keyup(function(){
        var search_term = $(this).val(); 
        $.post('test2.php', {search_term : search_term}, function(result){
            $("#search_display").html(result);

        });

    });
    </script>

</html>

原因是，您正在从test2.php请求数据，test2.php也包含了html代码，因此只有它一次又一次地重新出现。请试试这个让我知道结果。

当我在搜索栏中输入

1 个答案: