php用户登录代码
一款讲得非常详细的登录代码，对php入门者有很大的帮助，有需要的朋友可以免费查看,效果图如下:
index.php,代码如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://HdhCmsTestw3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" > <html xmlns= "http://HdhCmsTestw3.org/1999/xhtml" > <head> <meta http-equiv= "Content-Type" content= "text/html; charset=gbk" /> <title>系统登录</title> <link href= "css.css" rel= "stylesheet" type= "text/css" /> </head> <body> <div id= "box" > <div id= "denglu" > <div id= "pic" > 系统后台登陆</div> <form action= "check.php" method= "post" > <p>用户名： <input type= "text" name= "name" id= "name" /> <span class = "must" >*</span></p> <p>密 码： <input name= "password" type= "password" id= "password" /> <span class = "must" >*</span></p> <p>验证码： <input name= "check" type= "text" id= "check" size= "8" /> <img src= "piccheck.php" /> <span class = "must" >*</span></p> <p class = "form_button" > <input type= "submit" name= "sub" id= "sub" value= "登陆" /> <input type= "reset" name= "unsub" id= "unsub" value= "取消" /> </p> </form> </div> </div> </body> </html>
数据库连接connect.php, 代码如下:
<?php $connect =mysql_connect( "localhost" , "root" , "" ) or die ( "服务器连接失败" ); mysql_select_db( "test" , $connect ) or die ( "没有建立相应的数据库" ); $sql = "select * from admin" ; ?>
图片验证码 piccheck.php,代码如下:
<?php /* * Created on 2011-8-10 * * To change the template for this generated file go to * Window - Preferences - PHPeclipse - PHP - Code Templates */ session_start(); $code =rand(0,9). dechex (rand(10,15)).rand(0,9). dechex (rand(10,15)); $_SESSION [pic]= $code ; $image =imagecreatetruecolor(50,18); $color =imagecolorallocate( $image ,0,0,0); //第一次使用调色板，会设为背景颜色 $colortext =imagecolorallocate( $image ,rand(100,255),rand(100,255),rand(100,255)); imagestring( $image ,10,rand(1,15),rand(1,5), $code , $colortext ); imagegif( $image ); ?>
css.css文件,代码如下:
@charset "utf-8" ; /* CSS Document */ body { background-color : #9CF ; text-align : left ; } #denglu { width : 400px ; margin-top : 0px ; margin-right : auto ; margin-bottom : 0px ; margin-left : auto ; background-image : url (images/login.gif); background-repeat : no-repeat ; height : 320px ; text-indent : 6px ; } #box #denglu form { position : relative ; top: 50px ; left: 10px ; width : 92% ; } .must { color : #F00 ; font-size : 12px ; } #box #denglu #pic { background-image : url (images/dot 1 .gif); background-repeat : no-repeat ; height : 20px ; width : 100px ; font-size : 12px ; color : #F00 ; text-align : left ; line-height : 18px ; left: 10px ; top: 30px ; position : relative ; }查看更多关于php用户登录代码 - 综合实例的详细内容...
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