php登陆注册界面代码（php登录代码）

本篇文章给大家谈谈php登陆注册界面代码，以及php登录代码对应的知识点，希望对各位有所帮助，不要忘了收藏本站喔。

本文目录一览：

• 1、求一用php写的注册和登录页面代码
• 2、求写个比较简单的php登陆页面代码
• 3、PHP来实现网站的注册和登录
• 4、用PHP做登陆注册页面

求一用php写的注册和登录页面代码

reg.php文件

?php

header("Content-type:text/html;charset=utf-8");

if($_POST){

$dsn = 'mysql:dbname=1104javab;host=127.0.0.1';

$user = 'root';

$password = '';

try{

$pdo = new pdo($dsn,$user,$password,array(PDO::MYSQL_ATTR_INIT_COMMAND = 'SET NAMES \'UTF8\'')

);

}catch(Exception $e){

echo '错误'.$e-getmessage();

}

$name = $_POST['name'];

$pwd = md5($_POST['pwd']);

$sql = "insert into 表 (username,password) values ('$name','$pwd')";

$exec = $pdo-query($sql);

if($exec){

echo "scriptalert('成功');location.href='reg.html'/script";

}else{

echo "scriptalert('失败');location.href='reg.html'/script";

}

}

?

reg.html文件

form action='reg.php' method='post'

用户名:input type='text' name='name'

密码:input type='password' name='pwd'

input type='submit' value='submit'

/form

login.html文件

form action='reg.php' method='post'

用户名:input type='text' name='name'

密码:input type='password' name='pwd'

input type='submit' value='submit'

/form

login.php文件

header("Content-type:text/html;charset=utf-8");

if($_POST){

$dsn = 'mysql:dbname=1104javab;host=127.0.0.1';

$user = 'root';

$password = '';

try{

$pdo = new pdo($dsn,$user,$password,array(PDO::MYSQL_ATTR_INIT_COMMAND = 'SET NAMES \'UTF8\'')

);

}catch(Exception $e){

echo '错误'.$e-getmessage();

}

$name = $_POST['name'];

$pwd = $_POST['pwd'];

$sql = "select user_id from 表名 where username='$name' and password='$pwd'";

$stmt = $pdo-query($sql);

$info = $stmt-fetch(PDO::FETCH_ASSOC);

if($info){

echo "登录成功";

}else{

echo "登录失败";

}

}

大概这样

求写个比较简单的php登陆页面代码

index.php 录入页代码form id="form1" name="form1" method="post" action="login.php"

table width="400" border="0" align="center" cellpadding="1" cellspacing="1" class="tableborder"

tr

tddiv align="right"用户名：/div/td

td width="244"

input type="text" name="User_name" id="User_name" / /td

/tr

tr

tddiv align="right"密　码：/div/td

tdinput type="Password" name="User_Password" id="User_Password" //td

/tr

tr

td

div align="right"

input type="submit" name="button" id="button" value="提交" /

/div/td

tdinput type="reset" name="button2" id="button2" value="重置" //td

/tr

/table

/form login.php提交页代码?

error_reporting(0);

$mysql_servername = "127.0.0.1";

$mysql_username = "root";

$mysql_password ="123456";

$mysql_database ="first";

mysql_connect($mysql_servername , $mysql_username , $mysql_password);

mysql_select_db($mysql_database);

$U_name=$_POST['user_name'];

$U_passowrd=$_POST['user_password'];

if ($U_name $U_passowrd){

$sql = "SELECT * FROM admin WHERE U_name = '$U_name' and U_password='$U_passowrd'";

$res = mysql_query($sql);

$rows=mysql_num_rows($res);

if($rows){

header("location='c.php'");

exit;

}

echo "script language=javascriptalert('用户名密码错误');history.back();/script";

}else {

echo "script language=javascriptalert('用户名密码不能为空');history.back();/script";

}

?

PHP来实现网站的注册和登录

说明: 对于小白学习php还是先下一个phpstudy吧 比较便捷许多且自带mysql

1、打开phpstudy并启动

2、打开mysql管理器并启动MYSQL-front 如图所示

1、建立一个名为register的html文件

2、建立一个名为registApi的php文件并刚建立的html相连

-拿到用户的字段和密码

-查询是否有重名现象（注：可以在php中嵌入html语句但一般写在外面如该图末尾所示）

-根据返回值判断是否成功

1、返回登录页面

2、创建一个名为loginApi的php文件并与刚刚的html相连接

3、若用户登录成功返回一个成功的界面所以创建一个success的html

用PHP做登陆注册页面

登录页：login.php

?php

include("conn.php");

$username=$_POST['name'];

$password=$_POST['password'];

$yanzheng=$_POST['yanzheng'];

if(isset($_POST['submit']))

{

$sql=("select username,password from member where username='$username' and password='$password'") or die("sql语句执行失败");

//print_r($sql);

$ar=mysql_query($sql);

if($ar)

{

if($row=mysql_fetch_array($ar))

{

session_start();

if($_POST["yanzheng"])

{

if($yanzheng!=$_session[pic]||$yanzheng=="")

{

echo "验证码输入有误";

exit;

}

if($yanzheng==$_session[pic])

{

header("location:index.php");

}

}

}

else

{

echo "用户名或密码错误";

}

}

}

?

form action="login.php" method="post"

table border=1 align=center width=500 height=300 bgColor=#DFFFDF bordercolor=#fffbec

tr

td colspan=2 align=center用户登录/td

/tr

tr

td用户姓名：/td

tdinput type="text" name="name" id="name"//td

/tr

tr

td用户密码：/td

tdinput type="password" name="password" id="password"//td

/tr

tr

td验证码：/td

tdinput type="text" name="yanzheng" id="yanzheng"/

img src="yanzheng1.php" width="50" height="30"/img

/td

/tr

tr

td colspan=3 align=center

input type="submit" name="submit" value="登录"/

input type="reset" name="reset" value="重置"/

a href="register.php"注册/a

/td

/tr

/table

/form

注册页：register.php

?php

include("conn.php");

if(isset($_POST['submit'])$_POST['submit']) {

if($_POST['username']=='')

{

echo "用户名不能为空";

exit();

}

if($_POST['password']=='')

{

echo "密码不能为空";

exit();

}

if($_POST['realpass']!=$_POST['password'])

{

echo "两次密码输入不一致";

exit();

}

$sql="insert into member(username,real_name,password,email,headimg) values('$_POST[username]','$_POST[username]','$_POST[password]','$_POST[email]','')";

$ar=mysql_query($sql);

if($ar)

{

header("location:index.php");

}

else

{

echo mysql_error();

}

}

?

body

form action="register.php" method="post"

table border=1 align=center width=500

tr

td height=40 bgColor=#DFFFDF colspan=2会员注册 [a href="login.php"返回登录页/a]/td

/tr

tr

td height=40 bgColor=#fffbec 会员ID/td

tdinput type="text" name="username" id="username"//td

/tr

tr

td height=40 bgColor=#fffbec密码/td

tdinput type="password" name="password" id="password"//td

/tr

tr

td height=40 bgColor=#fffbec确认密码/td

td

input type="password" name="realpass" id="realpass"/

/td

/tr

tr

td height=40 bgColor=#fffbecEMAIL/td

tdinput type="text" name="email" id="email"/

/tr

tr

td height=40 bgColor=#fffbec/td

tdinput type="submit" name="submit" value="注册"/input type="reset" value="重置"/td

/tr

/table

/form

/body

主页显示：index.php

?php

include("conn.php");

function cutstr($str,$cutleng)

{

$str = $str; //要截取的字符串

$cutleng = $cutleng; //要截取的长度

$strleng = strlen($str); //字符串长度

if($cutleng$strleng)return $str;//字符串长度小于规定字数时,返回字符串本身

$notchinanum = 0; //初始不是汉字的字符数

for($i=0;$i$cutleng;$i++)

{

if(ord(substr($str,$i,1))=128)

{

$notchinanum++;

}

}

if(($cutleng%2==1)($notchinanum%2==0)) //如果要截取奇数个字符，所要截取长度范围内的字符必须含奇数个非汉字，否则截取的长度加一

{

$cutleng++;

}

if(($cutleng%2==0)($notchinanum%2==1)) //如果要截取偶数个字符，所要截取长度范围内的字符必须含偶数个非汉字，否则截取的长度加一

{

$cutleng++;

}

return substr($str,0,$cutleng);

}

?

html

head

script type="text/javascript"

function All(e, itemName)

{

var aa = document.getElementsByName(itemName);

for (var i=0; iaa.length; i++)

aa[i].checked = e.checked; //得到那个总控的复选框的选中状态

}

function Item(e, allName)

{

var all = document.getElementsByName(allName)[0];

if(!e.checked) all.checked = false;

else

{

var aa = document.getElementsByName(e.name);

for (var i=0; iaa.length; i++)

if(!aa[i].checked) return;

all.checked = true;

}

}

/script

/head

?php

include("conn.php");

if(isset($_POST['del']))

{

$mm = $_POST["selected"];

$id =implode(",",$mm);

$sql = "delete from forums where id in(".$id.")";

//echo $sql;

$result=mysql_query($sql);

echo $result?"删除成功":"删除失败";

}

?

table style="BORDER-BOTTOM-WIDTH: 1px; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=600 align=center border=1 bordercolor=#ddddff

tr align=middle

td height=40 bgColor=#DFFFDF colspan=3论坛列表/td

/tr

tr

td colspan=3a href="login.php" style="float:right"[退出系统]/aa href="add_forum.php" style="float:right"[添加论坛]/a/td

td/td

/tr

tr align=middle

td height=40 bgColor=#DFFFDF width=80状态/td

td height=40 bgColor=#DFFFDF论坛/td

td height=40 bgColor=#DFFFDF最后更新/td

/tr

?php

$sql="select * from forums";

$result=mysql_query($sql);

$num=mysql_num_rows($result);

if($num0)

{

while($row=mysql_fetch_array($result)){

?

tr align=middle

td bgColor=#fffbecinput type="checkbox" name="selected" value="1"//td

td height=50 bgColor=#fffbec width=300

?php

echo "diva href=\"forums.php?F=".$row['ID']."\"".$row['forum_name']."/a/div";

echo cutstr($row['forum_description'],24);//最多显示24个字节，12个字，多余部分用省略号代替

echo "……";

?

/td

td height=50 bgColor=#fffbecdiv?php echo $row['last_post_time']."by".$row['last_post_author']?/div/td

/tr

?php

}

}

else

{

echo "tr bgColor=#fffbectd colspan=3对不起，论坛尚在创建中……/td/tr";

}

?

tr

td colspan=3 input type="checkbox" name="selected" value="1" onclick="All(this,'selected')"/全选/不全选/td

/tr

tr

tdinput type="button" name="del" id="del" value="删除选中项"/

?php

?

/td

/tr

/table

/html

数据库你就自己建，望采纳~

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