列数不匹配，第1行（错误）值计数

Question

当我尝试在我的论坛这个要发布的主题上来：

列数并不在行1

匹配值计数

有人可以看到错误？ TNX :)

这是我的代码：

<?php 
session_start(); 
if ($_SESSION['uid'] == "") { 
    header("Location: index.php"); 
    exit(); 
} 
if (isset($_POST['topic_submit'])) { 
    if (($_POST['topic_title'] == "") && ($_POST['topic_content'] == "")) { 
     echo "You did not fill in both fields. Please retun to the previous page."; 
     exit(); 
    } else {  
     include_once("connect.php"); 
     $cid = $_POST['cid']; 
     $title = $_POST['topic_title']; 
     $content = $_POST['topic_content']; 
     $creator = $_SESSION['uid']; 
     $sql = "INSERT INTO topics (category_id, topic_title, topic_creator, topic_date, topic_reply_date) VALUES ('".$cid."', '".$title."', '".$creator."', now(), now())"; 
     $res = mysql_query($sql) or die(mysql_error()); 
     $new_topic_id = mysql_insert_id(); 
     $sql2 = "INSERT INTO posts (category_id, post_creator, post_content, post_date) VALUES ('".$cid."', '".$new_topic_id."', '".$creator."', '".$content."', now())"; 
     $res2 = mysql_query($sql2) or die(mysql_error()); 
     $sql3 = "UPDATE categories SET last_post_date=now(), last_user_posted='".$creator."' WHERE id='".$cid."', LIMIT 1"; 
     $res3 = mysql_query($sql3) or die(mysql_error()); 
     if (($res) && ($res2) && ($res3)) { 
      header("Location: view_topic.php?cid=".$cid."&ti­d=".$new_topic_id); 
     } else { 
      echo "There was a problem creating your topic. Please try again."; 
     } 
    } 
} 
?> 

Answer 1

就出在这里你的错误：

$sql2 = "INSERT INTO posts (category_id, post_creator, post_content, post_date) VALUES ('".$cid."', '".$new_topic_id."', '".$creator."', '".$content."', now())"; 

你插入5个值（$cid，$new_topic_id，$creator，$content，now()）到4列（category_id,post_creator,post_content,post_date）。因此，列数 （4）不匹配值计数（5）。

此外，您可能会遇到在这里另一个错误，因为你有LIMIT前一个额外的逗号：

$sql3 = "UPDATE categories SET last_post_date=now(), last_user_posted='".$creator."' WHERE id='".$cid."', LIMIT 1";