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我正在创建一个反馈表单，用户可以在其中使用php mysqli写入他们的反馈并将其存储在数据库中，而无需刷新整个页面。我得到了成功的消息，但没有任何输入的数据可以帮助我吗？我昨天问同样的问题php mysqli insert and update queries 带有插入和更新查询的php mysqli

feedback_form.php

<?php 

session_start(); 

$login = ($_SESSION['login']); 
    $userid = ($_SESSION['user_id']); 
    $login_user = ($_SESSION['username']); 
    $fname = ($_SESSION['first_name']); 
    $lname = ($_SESSION['last_name']); 
    $sessionaddres =($_SESSION['address']); 


?> 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<title>feedback page</title> 
    <script type = "text/javascript" src = "http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> 
    <link href="style/stylesheet.css"rel="stylesheet" type="text/css"/> 

    <script type = "text/javascript"> 

    $(function(){ 

     $('#submit').click(function(){ 
     $('#container').append('<img src = "images/loading.gif" alt="Currently loading" id = "loading" />'); 


      var comments = $('#comments').val(); 


      $.ajax({ 

       url: 'feedback_process.php', 
       type: 'POST', 
       data: {"comments": comments}, 

       success: function(result){ 
        $('#response').remove(); 
        $('#container').append('<p id = "response">' + result + '</p>'); 
        $('#loading').fadeOut(500, function(){ 
         $(this).remove(); 
        }); 

       } 

      });   

      return false; 

     }); 


    }); 

    </script> 




    </head> 
<?php require_once('header.php'); ?> 

<body> 
<form action = "feedback_form.php" method = "post"> 
    <div id = "container"> 
      <h2><?php echo $login_user ?></h2> 



      <label for = "comments">Comments</label> 
      <textarea rows = "5"cols = "35" name = "comments" id = "comments"></textarea> 
      <br /> 
    </div> 
    </form> 
     <input type = "submit" name = "submit" id = "submit" value = "send feedBack" /> 




</body> 
</html>

feedback_process.php

<?php 

session_start(); 

$login = ($_SESSION['login']); 
    $userid = ($_SESSION['user_id']); 
    $login_user = ($_SESSION['username']); 
    $fname = ($_SESSION['first_name']); 
    $lname = ($_SESSION['last_name']); 
    $sessionaddres =($_SESSION['address']); 


$conn = new mysqli('localhost', 'root', 'root', 'lam_el_chamel_db'); 

    echo"<pre>"; 
    print_r($_POST); 
    echo"</pre>"; 

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

    $comments = $_POST['comments']; 



    $query = "INSERT into feedback (feedback_text, user_name,) VALUES(?,?)"; 

    $stmt = $conn->stmt_init(); 
    if($stmt->prepare($query)) 
    { 

    $stmt->bind_param('ss', $comments, $login_user); 
    $stmt->execute(); 

    } 
    $query2 = "UPDATE feedback SET feedback_text = ?, user_name = ? WHERE user_name = ? "; 
    $stmt = $conn->stmt_init(); 
    if($stmt->prepare($query2)) 
    { 
    $stmt->bind_param('sss', $comments, $login_user, $login_user); 
    $stmt->execute(); 

    } 



    if($stmt){ 

    echo "thank you .we will be in touch soon <br />"; 

    } 
    else{ 
    echo "there was an error. try again later."; 
    } 

} 

else 
    echo"it is a big error"; 
?>

来源

2013-03-24 user2172837

如果你已经问过这个问题，你为什么要再次发布它？如果给出的答案没有帮助，那么解释他们为什么不这样做，并且提供答复的人会尝试帮助 – JConstantine 2013-03-24 20:20:57

我再次问到，因为没有人在最后回复后回答我，并且仍然有同样的问题 – user2172837 2013-03-24 21:35:47

第一：不要问任何问题两次。只是因为你回答他们两次，你不会得到更好更快或答案...

成功消息只是告诉你，你已经访问成功（而不是其他任何东西）的文件。基于此，我会尝试单独运行feedback_process.php（不包括feedback_form.php），并带有“虚拟”注释和“虚拟”login_user。当插入查询不起作用时，我还添加了“失败”的输出...（您的代码实际上只是为更新反馈查询（最后一个）实现了成功）

我希望下面的代码有助于你...

<?php 
session_start(); 

$login = ($_SESSION['login']); 
$userid = ($_SESSION['user_id']); 
$login_user = ($_SESSION['username']); 
$fname = ($_SESSION['first_name']); 
$lname = ($_SESSION['last_name']); 
$sessionaddres =($_SESSION['address']); 


$conn = new mysqli('localhost', 'root', 'root', 'lam_el_chamel_db'); 

echo"<pre>"; 
print_r($_POST); 
echo"</pre>"; 


//Some dummys for debugging 
$comments = 'This is the comments'; 
$login_user = 'FOO'; 


$query = "INSERT into feedback (feedback_text, user_name) VALUES(?,?)"; 

$stmt = $conn->stmt_init(); 
if($stmt->prepare($query)) { 
    $stmt->bind_param('ss', $comments, $login_user); 
    $stmt->execute(); 
} 
else { 
    echo 'FAILED!'; 
} 

$query2 = "UPDATE feedback SET feedback_text = ?, user_name = ? WHERE user_name = ? "; 
$stmt = $conn->stmt_init(); 
if($stmt->prepare($query2)) { 
    $stmt->bind_param('sss', $comments, $login_user, $login_user); 
    $stmt->execute(); 
} 
else { 
    echo 'FAILED!'; 
} 

if($stmt){ 
    echo "thank you .we will be in touch soon <br />"; 
} 
else { 
    echo "there was an error. try again later."; 
} 

?>

来源

2013-03-24 23:21:59 bestprogrammerintheworld

带有插入和更新查询的php mysqli

feedback_form.php

feedback_process.php

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