PHP写的留言簿写不上留言，这是什么原因呢？ - 百科问答

语言 :

问题 :PHP写的留言簿写不上留言，这是什么原因呢？

游客 (104.224.*.*)
类别 :[技术][计算机技术]
问题描述 :

代码：
＜html＞
＜head＞＜/head＞
＜body＞
＜p＞＜b＞留言簿＜/b＞＜/p＞
＜p＞＜br＞
＜a href="guestbook.php"＞查看留言;＜/a＞＜/p＞
＜p＞＜a href="index.php"＞返回主页;＜/a＞＜br＞
＜/p＞
＜hr /＞
＜?php
$con=mysql_connect("rds994h2o231a59060gp.mysql.rds.aliyuncs.com", "r6s3iso03h", "******") or die("连接失败");
mysql_select_db("r6s3iso03h", $con);

if ($_POST['submit'])
{$sql="insert into guestbook(g_id,g_content,g_name,g_date)"."values('$_post[g_content]','$_post[g_name]',now())";

mysql_query($sql,$conn);
echo "留言成功";}
?＞
＜form action="guestbookadd.php" method="post"＞
留言内容;
＜textarea name="g_content"＞＜/textarea＞＜br/＞
留言者;
＜input type="text" name="g_name"/＞＜br/＞
＜input type="submit" name="submit" value="提交" /＞
＜/form＞
＜/body＞
＜/html＞

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if ($_POST['submit']) {$sql="insert into guestbook(g_id,g_content,g_name,g_date)"."values('$_post[g_content]','$_post[g_name]',now())"; 改为 if ($_POST['submit']) {$sql="insert into guestbook(g_id,g_content,g_name,g_date)"."values('$_POST[g_content]','$_POST[g_name]',now())"; 注意$_POST要大写

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