Question

所以我累了，现在已经尝试了好几个小时，仍然无法找到它为什么不能工作。了解我，这可能是我在某处犯过的一些愚蠢的错误。 Anyhoo，我有一个我需要提交的表单，然后输入的文本被插入到数据库中。但是，每当我按提交时，它只会返回主页并且不会插入任何内容。代码在这里：

//New Memory
<?php 
if ($x == 'new') {
?>

<a href="pensieve_elizabeth.php"><- Back</a>
<center>
<table width="400" border="0" cellspacing="0" cellpadding="0">
    <tr>
      <td>
          <form action="<?php echo $_SERVER['PHP_SELF'] ?>" method="post">
             <input type="hidden" name="submitted" value="submitted" />

             <p><b>Add Memory </b></p>
             <p>Title:<br> 
             <input class="textfield" name="title" maxlength="55" style="width:325px;">
             <br>
             Memory: <br>  
             <textarea class="textfield" name="entry" value="entry" id="entry" cols="30" rows="10" style="width:325px;"></textarea><br>

             <input type="submit" value=" Submit " />

             <input type="checkbox" name="private" value="1"> Private 

             <p>What thread does the memory belong to? (optional):<textarea class="textfield" name="links" rows="1" style="width:325px;"></textarea><br />

         </form>
     </td>
   </tr>
</table>
</center>

<?php

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

  $title = trim(addslashes(strip_tags(htmlspecialchars($_POST['title']))));
  $entry = trim(addslashes(strip_tags(htmlspecialchars($_POST['entry']))));
  $private = $_POST['private'];
  $links = $_POST['links'];

  if (empty($title)) message("Please give the memory a title.");
  if (empty($entry)) message("Your memory is empty.");

  mysql_query("INSERT INTO pensieve SET uid = '$userID', subject = '$title', memory = '$entry', dateline = '".date()."', private = '$private', links = '$links'") or die(mysql_error());

  message("You have successfully submitted this memory to your pensieve!","/pensieve_elizabeth.php");
  }
}
?>

Answer 1

您的查询错误。

  mysql_query("INSERT INTO pensieve SET uid = '$userID', subject = '$title', memory = '$entry', dateline = '".date()."', private = '$private', links = '$links'") or die(mysql_error());

必须是

mysql_query("INSERT INTO pensieve(uid, subject, memory, dateline, private, links) values('$userID', '$title', '$entry', '".date()."', '$private', '$links')") or die(mysql_error());

Answer 2

首先在脚本顶部设置以下内容

  error_reporting(E_ALL);

这将告诉你关于出了什么问题以及在什么线上的一切。

其次，我不明白你为什么要这样做

 INSERT INTO pensieve SET uid = '$userID', subject = '$title', 
 memory = '$entry', dateline = '".date()."', 
  private = '$private', links = '$links'");

您一起使用INSERT和UPDATE语法

如果要插入使用

 "INSERT INTO pensieve ('uid', 'subject', 'memory', 'dateline', 
     'private', 'links')  VALUES ('$userID','$title','$entry','".date()."',
   '$private', '$links'");

以下将直接插入一行，而不管各行中的重复值

如果您想更新使用

    "UPDATE pensieve SET uid = '$userID', subject = '$title', memory = '$entry', 
  dateline = '".date()."', private = '$private', links = '$links'" 
   WHERE 'something' = 'something_value' ";

一共

    $result = mysql_query("INSERT INTO pensive.......");
    if(!$result){
       mysql_error();
    }

Answer 3

    Add these two lines to the top of your script, this will show any sort of errors in the script or query execution:

    ini_set("display_errors","on");
    error_reporting(E_ALL);

    And for the data not getting inserted:
    check your query if all the mandatory/not null values are passed in the query or not. For example - I do not see userid being set in your script.  

   Your insert query syntax is wrong - the correct syntax is 
 insert into table1(col1,col2,col3) values(val1,val2,val3);

so your query would be :

$sql ="INSERT INTO pensieve(uid,subject,memory,dateline,private,links) values ('$userID','$title', '$entry','". date('Y-m-d H:i:s',time())."', '$private', '$links'";

if you want to update then :

$SQL = "UPDATE pensieve SET uid = '$userID', subject = '$title', memory = '$entry', dateline = '".date('Y-m-d H:i:s',time())."', private = '$private', links = '$links'";

提交表单到数据库不工作

3 个答案: