Question

我在网上搜索了这个查询，我可以在这个平台上找到一些，但它们对我来说并不是很好解释。我有一个保存消息的表，该表还包含用户名列，用于使用登录会话跟踪信使但每次我尝试插入消息时都收到了字段＆＃39;用户名＆＃39;没有默认值。这是我的代码：

<?php
session_start();

if(!isset($_SESSION['user_name']) || (trim($_SESSION['user_name']) == '')) {
        header("location: ../login");
        exit();
    }else{

        $user= $_SESSION['user_name'];


    if(!empty($_POST['message'])) {
    include_once 'includes/config.php';
    include_once 'includes/security.php';
    include_once 'includes/smileys.php';
    $message = clean(mysql_real_escape_string($_POST['message']));
    $message = special_chars($message); 
    $time = time();
    //getting image link
    if(!empty($_POST['pic_url'])) {
        $image = strip_tags($_POST['pic_url']);
    } else {
        $image = '';
    }
    $git = '';

    //getting video link
    if(!empty($_POST['y_link'])) {
        $video = fix_url(strip_tags($_POST['y_link']));
    } else {
        $video = '';
    }

    //insert into wall table
     $query = mysql_query("INSERT INTO posts SET
      post_desc = '$message', 
      image_url = '$image',
      vid_url = '$video',
       username = '',
        git = '$user',
        post_date = '$time')") or die(mysql_error());
     $ins_id = mysql_insert_id();


?>

sql表语法：

CREATE TABLE `posts` (
  `post_id` int(9) NOT NULL,
  `post_desc` mediumtext NOT NULL,
  `image_url` varchar(100) NOT NULL,
  `vid_url` varchar(100) NOT NULL,
  `username` varchar(100) NOT NULL,
  `git` varchar(100) DEFAULT NULL,
  `post_date` varchar(20) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

字段＆＃39;用户名＆＃39;没有默认值

0 个答案: