基于PHP的登录和注册的功能的实现

1.新建三个html文件，两个php文件和若干个css文件和若干个js文件

2.登录的html页面显示效果图

3.注册的页面的显示效果图

4.登录页面的form表单代码

<div class="sign-con w1200"><img src="img/logn-tu.gif" class="sign-contu f-l"/><form action="login.php" method="post"><div class="sign-ipt f-l"><p>用户名：</p><input type="text" name="urname" placeholder="手机号/邮箱" /><p>密码：</p><input type="password" name="password" placeholder="密码可见" /><br /><button class="slig-btn">登录</button><p>没有账号？请<a href="regist.html" rel="external nofollow" >注册</a><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="wj">忘记密码？</a></p><div class="sign-qx"><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="f-r"><img src="img/sign-xinlan.gif" /></a><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofoll重阳节名句ow" rel="external nofollow" class="qq f-r"><img src="img/sign-qq.gif" /></a><div style="clear: both;"></div></div></div></form><div style="clear: both;"></div></div>

5.注册页面的form表单代码

<div class="password-con registered"><form action="爱国英雄的故事regist.php" method="post"><div class="psw"><p class="psw-p1">用户名</p><input type="text" name="urname" placeholder="hr了" /><span class="dui"></span></div><div class="psw"><p class="psw-p1">输入密码</p><input type="password" name="password" placeholder="请输入密码" /><span class="c蔡依林和锦荣uo">密码由6-16的字母、数字、符号组成</span></div><div class="psw"><p class="psw-p1">确认密码</p><input type="password" name="repassword" placeholder="请再次输入密码" /><span class="cuo">密码不一致，请重新输入</span></div><div class="psw psw2"><p class="psw-p1">手机号/邮箱</p><input type="text" name="telphone" placeholder="请输入手机/邮箱验证码" /><button>获取短信验证码</button></div><div class="psw psw3"><p class="psw-p1">验证码</p><input type="text" placeholder="请输入验证码" /></div><div class="yanzhentu"><div class="yz-tu f-l"><img src="img/psw-yanzhengtu.gif" /></div><p class="f-l">看不清楚？<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >换张图</a></p><div style="clear: both;"></div></div><div class="agreement"><input type="checkbox" name="hobby" /><p>我有阅读并同意<span>《宅客微购网站服务协议》</span></p></div><button type="submit" value="注册" class="psw-btn">立即注册</button><p class="sign-in">已有账号？请<a href="login.html" rel="external nofollow" >登录</a></p></form></div><!-- 注册框结束 -->

6.login.php代码

<?php  header("content-type: text/html; chart=utf-8");  $urname = $_post['urname'];  $password = $_post['password'];  $conn = new mysqli('localhost','root','root','shopping');  if ($conn->connect_error){    echo '数据库连接失败！';    exit(0);  }el{    if ($urname == ''){      echo '<script>alert("请输入用户名！");history.go(-1);</script>';      exit(0);    }    if ($password == ''){      echo '<script>alert("请输入密码！");history.go(-1);</script>';      exit(0);    }    $sql = "lect urname,password from urinfo where urname = '$_post[urname]' and password = '$_post[password]'";    $result = $conn->query($sql);    $number = mysqli_num_rows($result);    if ($number) {      echo '<script>window.location="index.html";</script>';    } el {      echo '<script>alert("用户名或密码错误！");history.go(-1);</script>';    }  }?>

7.regist.php代码

<?php  header("content-type: text/html; chart=utf-8");    $urname = $_post['urname'];    $password = $_post['password'];    $repassword = $_post['repassword'];    $telphone = $_post['telphone'];    if ($urname == ''){      echo '<script>alert("请输入用户名！");history.go(-1);</script>';      exit(0);    }    if ($password == ''){      echo '<script>alert("请输入密码");history.go(-1);</script>';      exit(0);    }    if ($password != $repassword){      echo '<script>alert("密码与确认密码应该一致");history.go(-1);</script>';      ex特别高级的群名it(0);    }    if($password == $repassword){      $conn = new mysqli('localhost','root','root','成语出类拔萃shopping');      if ($conn->connect_error){        echo '数据库连接失败！';        exit(0);      }el {        $sql = "lect urname from urinfo where urname = '$_post[urname]'";        $result = $conn->query($sql);        $number = mysqli_num_rows($result);        if ($number) {          echo '<script>alert("用户名已经存在");history.go(-1);</script>';        } el {          $sql_inrt = "inrt into urinfo (urname,password,telphone) values('$_post[urname]','$_post[password]','$_post[telphone]')";          $res_inrt = $conn->query($sql_inrt);          if ($res_inrt) {            echo '<script>window.location="index.html";</script>';          } el {            echo "<script>alert('系统繁忙，请稍候！');</script>";          }        }      }    }el{      echo "<script>alert('提交未成功！'); history.go(-1);</script>";    }?>

8.进入首页后的图片

9.数据库的图片

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