PHP简单表单登录操作

来源：互联网发布：域名隐藏端口号编辑：程序博客网时间：2024/04/30 16:30

以下是在环境wamp下执行的，php5.4.3下的操作练习。重点是php部分的代码可以直接拿来用，样式和js比较多，未引用
login.php部分

<?php    //生成四位的随机验证码    $codeData ="abcdqwetyuipffhbcnvmklABCDHFUNCYEIJNDF0123456789";    $postcode = "";        for($i=0;$i<4;$i++){            $postcode .= '<span class="code" style="color:rgb('.mt_rand(0,255).','.mt_rand(0,255).','.mt_rand(0,255).')">';            $postcode.= $codeData{mt_rand(0,strlen($codeData)-1)}."</span>";        }?><!DOCTYPE html><html lang="zh-cn"><head>    <meta charset=utf-8" />    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />    <meta name="renderer" content="webkit">    <title>登录</title>      <link rel="stylesheet" href="css/pintuer.css">    <link rel="stylesheet" href="css/admin.css">    <script src="js/jquery.js"></script>    <script src="js/pintuer.js"></script>     <style type="text/css">    .code{        float:left;        height:43px;        display:block;        font-size: 20px;        font-weight: bold;        line-height: 43px;        cursor:pointer;    }    </style> </head><body><div class="bg"></div><div class="container">    <div class="line bouncein">        <div class="xs6 xm4 xs3-move xm4-move">            <div style="height:150px;"></div>            <div class="media media-y margin-big-bottom">                       </div>                     <form action="./php/login.php" method="post">            <div class="panel loginbox">                <div class="text-center margin-big padding-big-top"><h1>后台管理系统</h1></div>                <div class="panel-body" style="padding:30px; padding-bottom:10px; padding-top:10px;">                    <div class="form-group">                        <div class="field field-icon-right">                            <input type="hidden"/>                            <input type="text" class="input input-big" name="username" placeholder="登录账号" data-validate="required:请填写账号" />                            <span class="icon icon-user margin-small"></span>                        </div>                    </div>                    <div class="form-group">                        <div class="field field-icon-right">                            <input type="password" class="input input-big" name="password" placeholder="登录密码" data-validate="required:请填写密码" />                            <span class="icon icon-key margin-small"></span>                        </div>                    </div>                    <div class="form-group">                        <div class="field">                            <input type="hidden" name="postcode" value="<?php echo strip_tags($postcode);?>">                            <input type="text" class="input input-big" name="code" placeholder="填写右侧的验证码" data-validate="required:请填写右侧的验证码" style="float: left;width: 270px;"/>                            <?php  echo $postcode; ?>                        </div>                    </div>                    <a href="submit.html" target="_blank" style="float:right;margin-top:5px;">没有帐号？注册新用户</a>                </div>                <div style="margin-top:6px;padding:30px;"><input type="submit" class="button button-block bg-main text-big input-big" value="登录"></div>            </div>            </form>                  </div>    </div></div></body></html>

操作部分login.php

<?php    header("content-type:text/html;charset=utf-8");    require_once('../../connect.php');    if(!empty($_POST)){    $username = $_POST['username'];    $password = $_POST['password'];    $code = trim($_POST['code']);    $postcode = $_POST['postcode'];    $selectData = "select username,password from user where username='$username' and password='$password'";    $selectQuery = mysql_query($selectData);        if($selectQuery&&mysql_num_rows($selectQuery)){            if(strcasecmp($code, $postcode)==0){            $row = mysql_fetch_assoc($selectQuery);            echo "<script>alert('登录成功!点击跳转');location.href='../index.html';</script>";            }        }        else{            echo "<script>alert('帐号或密码不确!');location.href='../login.php';</script>";        }    }?>

1 0