Simple PHP guestbook example code_PHP tutorial

config.php

Copy code The code is as follows:

<?php
$conn = @mysql_connect("localhost","root","") or die("Database connection error!");
mysql_select_db("gb",$conn);
mysql_query("set names 'GBK' ");
?>

add.php

Copy code The code is as follows:

<?php
include("config.php");
if($_POST['submit']){
//While here, forget There is also a field last in the message that has not been written, causing data insertion to fail. It took me a long time to find the error.
$sql="insert into message (id,user,title,content,lastdate) values ​​('','$_POST[user]','$_POST[title]','$_POST[content]', now())";
mysql_query($sql);
echo "Success";
}
?>
<form action="add.php" method="post ">
User:<input type="text" name="user" /><br>
Title:<input type="text" name="title" />&lt ;br />
Content:<textarea name="content"></textarea><br />
<input type="submit" name="submit" value=" Submit" />
</form>

view.php

Copy code The code is as follows:

<?php
include("config.php");
?>
<table width=500 border="0" align="center" cellpadding= "5" cellspacing="1" bgcolor="#add3ef">
<?php
$sql="select * from message order by id desc";
$query=mysql_query($sql );
while($row=mysql_fetch_array($query)){
?>
//NND. In the default environment of wampserver, I use the syntax <?=$row[title]?>, but the content cannot be read. This is the only way to use it. depressed. It took me a long time to figure it out
<tr bgcolor="#eff3ff">
<td>Title: <?php echo $row[title];?> User: <?php echo $row[user];?></td>
</tr>
<tr bgColor="#ffffff">
<td>Content: <?php echo $row[content];?></td>
</tr>
<?php
}
?>
</table>

Then there is also SQL for the database.

Copy code The code is as follows:

CREATE TABLE `message` (
`id` tinyint(1) NOT NULL auto_increment,
`user` varchar(25) NOT NULL,
`title` varchar(50) NOT NULL,
`content` tinytext NOT NULL,
`lastdate` date NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=gbk AUTO_INCREMENT=1 ;

http://www.bkjia.com/PHPjc/321804.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/321804.htmlTechArticleconfig.php Copy the code as follows: ?php $conn = @mysql_connect("localhost","root", "") or die("Database connection error!"); mysql_select_db("gb",$conn); mysql_query("set names 'GBK'...