php留言代码怎么写,php简单留言板代码

本文目录一览：

• 1、求用PHP写一个简单基本的留言板代码，有点急
• 2、关于PHP删除和修改留言板留言功能的代码，急
• 3、php制作留言板代码

求用PHP写一个简单基本的留言板代码，有点急

数据库的创建

CREATE DATABASE GBOOK;

CREATE TABLE `gbook` (

`id` INT( 255 ) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY ,

`name` VARCHAR( 10 ) NOT NULL ,

`sex` TINYINT( 1 ) UNSIGNED NOT NULL ,

`email` VARCHAR( 255 ) NOT NULL ,

`info` TEXT NOT NULL ,

`ip` VARCHAR( 15 ) NOT NULL ,

`time_at` DATETIME NOT NULL

)

主要页面有:

input.html为初始页

insert.php为把输入内容送入数据库

show.php显示留言板内容

change.php修改留言板内容的界面

del.php删除留言板内容

change_ok.php修改留言板内容并送入数据库

input.html

html

head

meta http-equiv=”content-type” content=”text/html; charset=GB2312″ /

title留言版/title

/head

body

form name=”form1″ method=”post” action=”insert.php”

p你的名字：input type=”text” name=”name” size=”20″ //p

p你的性别：input type=”radio” value=”1″ name=”sex” checked=”checked” /男生 input type=”radio” value=”0″ name=”sex” /女生 /p

p你的E-mail:input type=”text” name=”email” size=”20″ //p

p你的留言内容:/p

ptextarea rows=”9″ name=”info” cols=”35″/textarea/p

pinput type=”submit” value=”提交” name=”B1″ /input type=”reset” value=”重设” name=”B2″ //p

/form

/body

/html

insert.php

?php

$mysql_server_name = “localhost”;

$mysql_username = “root”;

$mysql_password = “123456”;

$mysql_database = “gbook”;

$ip = getenv(‘REMOTE_ADDR’);

$conn = mysql_connect(“localhost”,”root”,”123456″);

mysql_select_db(“gbook”);

$sql = “INSERT INTO `gbook` ( `id` , `name` , `sex` , `email` , `info` , `ip` , `time_at` )

VALUES (NULL , ‘$name’, ‘$sex’, ‘$email’, ‘$info’, ‘$ip’, NOW( ))”;

$result = mysql_query($sql,$conn);

$id = mysql_insert_id();

mysql_close($conn);

?

p留言成功/p

pa href=”show.php”去留言页 /a/p

show.php

?

$mysql_server_name = “localhost”;

$mysql_username = “root”;

$mysql_password = “123456”;

$mysql_database = “gbook”;

$sql = “SELECT * FROM gbook ORDER BY ‘id’ DESC”; //排序 后留言的在前面显示

$conn = mysql_connect($mysql_server_name,$mysql_username,$mysql_password);

mysql_select_db($mysql_database,$conn);

$result = mysql_query($sql);

while($row = mysql_fetch_row($result))

{ // —-if语句判断男女——

if($row[2]==1)

{ $gender = ‘男’;}

else

{ $gender = ‘女’; }

?

table width=”752″ border=”1″

tr

td height=”32″p?=$row[6]? ?=$row[5]? /p

p?=$row[1]?(?=$gender?) ?=$row[3]?/p/td

/tr

tr

td height=”45″?=nl2br($row[4])?pa href=”change.php?id=?=$row[0]?”[修改]/a a href=”del.php?id=?=$row[0]?”[删除]/a/p/td

/tr

/table

hr /

?

}

mysql_free_result($result);

?

change.php

?

$mysql_server_name = “localhost”;

$mysql_username = “root”;

$mysql_password = “123456”;

$mysql_database = “gbook”;

$sql = “SELECT name, sex, email, info FROM gbook WHERE id = ‘$id’ “;

$conn = mysql_connect($mysql_server_name,$mysql_username,$mysql_password);

mysql_select_db($mysql_database,$conn);

$result = mysql_query($sql);

$row = mysql_fetch_row($result);

?

html

head

meta http-equiv=”content-type” content=”text/html; charset=GB2312″ /

title留言版/title

/head

body

form name=”form1″ method=”post” action=”change_ok.php?id?=$id?”

p你的名字：input type=”text” name=”name” size=”20″ value=”?=$row[0]?”//p

?

// —–if语句判断男女 1为男 0为女——-

if($row[1]==1)

echo ‘ p你的性别：input type=”radio” value=”1″ name=”sex” checked=”checked” /男 input type=”radio” value=”0″ name=”sex” /女 /p’;

else

echo ‘ p你的性别：input type=”radio” value=”1″ name=”sex” /男 input type=”radio” value=”0″ name=”sex” checked=”checked” /女 /p’;

?

p你的E-mail:input type=”text” name=”email” size=”20″ value=”?=$row[2]?”//p

p你的留言内容:/p

ptextarea rows=”9″ name=”info” cols=”35″?=$row[3]?/textarea/p

pinput type=”submit” value=”提交” /input type=”reset” value=”重设” //p

/form

/body

/html

del.php

?

$mysql_server_name = “localhost”;

$mysql_username = “root”;

$mysql_password = “123456”;

$mysql_database = “gbook”;

$sql = “DELETE FROM gbook WHERE id = ‘$id’ “;

$conn = mysql_connect($mysql_server_name,$mysql_username,$mysql_password);

mysql_select_db($mysql_database,$conn);

$result = mysql_query($sql);

mysql_close($conn);

?

pa href=”show.php”[返回]/a/p

change_ok.php

?

$mysql_server_name = “localhost”;

$mysql_username = “root”;

$mysql_password = “123456”;

$mysql_database = “gbook”;

$sql = “UPDATE `gbook` SET `name` = ‘$name’,`sex` = ‘$sex’,`email` = ‘$email’,`info` = ‘$info’ WHERE `id` =’$id’ “;

$conn = mysql_connect($mysql_server_name,$mysql_username,$mysql_password);

mysql_select_db($mysql_database,$conn);

$result = mysql_query($sql);

mysql_close($conn);

?

pa href=”show.php”[返回]/a/p

关于PHP删除和修改留言板留言功能的代码，急

登录时

用$_SESSION保存下

例如$_SESSION[‘user’]=”$user”;

管理员登录时再写个$_SESSION[‘username’];

在留言后边加上

?php

if(isset($_SESSION[‘username’])

||

$_SESSION[‘user’]==$username){

print

‘a

href=”update.php?id=’.$row[‘id’].'”修改/a’;?

这样只有登录的管理员才能看到这个修改

并且能修改

然后在update.php写更新操作

删除一样的

php制作留言板代码

form action=”留言方法，也可以是留言.php文件，也可以是当前页面” method=”get”

pFirst name: input type=”text” name=”fname” //p

pLast name: input type=”text” name=”lname” //p

input type=”submit” value=”Submit” /

/form

php:

$fname=$_GET[fname];

$lname=$_GET[lname];

$sql = “insert into 表名(字段1,字段2) values(‘$fname’,’$lname’)”;

if(!$sql ){

return “插入失败”;

}else{

return “成功添加数据”;

}