Community Learn Tools Library Leisure
search
English
Home > Backend Development > PHP Tutorial > body text

ajax session 登陆要刷新才能出数据

WBOY
Release： 2016-06-06 20:36:04
Original
1338 people have browsed it

php

<code><?php session_start();
include ('conn.php');

$action = $_GET['action'];
if ($action == 'login') {  //登录
    $email = $_POST['email'];
    $pass = $_POST['password'];
    if (empty ($email)) {
        echo '邮箱不能为空';
        exit;
    }
    if (empty ($pass)) {
        echo '密码不能为空';
        exit;
    }
    // $md5pass = md5($password);
    $query = mysql_query("select * from user where email='$email'");

    $us = is_array($row = mysql_fetch_array($query));

    $ps = $us ? $pass == $row['password'] : FALSE;
    if ($ps) {
        $counts = $row['login_counts'] + 1;
        $_SESSION['email'] = $row['email'];
        $_SESSION['login_time'] = $row['login_time'];
        $_SESSION['login_counts'] = $counts;
        $ip = get_client_ip();
        $logintime = mktime();
        $rs = mysql_query("update user set login_time='$logintime',login_ip='$ip',login_counts='$counts'");
        if ($rs) {
            echo '1';exit;
            $arr['success'] = 1;
            $arr['msg'] = '登录成功！';
            $arr['email'] = $_SESSION['email'];
            $arr['login_time'] = date('Y-m-d H:i:s',$_SESSION['login_time']);
            $arr['login_counts'] = $_SESSION['login_counts'];
        } else {
            $arr['success'] = 0;
            $arr['msg'] = '登录失败';
        }
    } else {
        $arr['success'] = 0;
        $arr['msg'] = '用户名或密码错误！';
    }
    echo json_encode($arr);
}
elseif ($action == 'logout') {  //退出
    unset($_SESSION);
    session_destroy();
    echo '1';
}
```
js

```
// JavaScript Document
$(function(){
    $("#email").focus();
    $("input:text,textarea,input:password").focus(function() {
        $(this).addClass("cur_select");
    });
    $("input:text,textarea,input:password").blur(function() {
        $(this).removeClass("cur_select");
    });

    $("#btn-login").bind('click',function(){
        var email = $("#email").val();
        var password = $("#password").val();
        
        if(email==""){
            $(".control-group-email").removeClass('has-success').addClass("has-error");
            $('<div class="help-block-text">').text("邮箱不能为空！").appendTo($('.control-group-email'));
            $("#email").focus();
            return false;
        }else{
            $(".control-group-email").removeClass("has-error").addClass("has-success")
            $('.help-block-text').remove();
            $("#password").focus();
        }
        if(password==""){
            $(".control-group-password").removeClass("has-success").addClass("has-error");
            $('<div class="help-block-text"></div>').text("密码不为空！").appendTo($('.control-group-password'));
            $("#password").focus();
            return false;
        }else{
            $(".control-group-password").removeClass("has-error").addClass("has-success")
            $('.help-block-text').remove();
            $("#btn-login").focus();
        }
        $.ajax({
            type: "POST",
            url: "login.php?action=login",
            dataType: "json",
            data: {"email":email,"password":password},
            beforeSend: function(){
                $('<div id="msg"></div>').addClass("loading").html("正在登录...").css("color","#999").appendTo('#btn-login').fadeOut(1000
                    );
            },
            success: function(json){
                if(json.success==1){
                    $("#login-form").remove();
                    var div = "<div id="result">
<p><strong>"+json.email+"</strong>，恭喜您登录成功！</p>
<p>您这是第<span>"+json.login_counts+
                    "</span>次登录本站。</p>
<p>上次登录本站的时间是：<span>"+json.login_time+
                    "</span></p>
<p><a href="#" id="logout">【退出】</a></p>
</div>";
                    $("#login").append($('div'));
                }else{
                    // $("#msg").remove();
                    $('<div id="errmsg"></div>').html(json.msg).css("color","#999").appendTo('.help-block').fadeOut(2000);
                    return false;
                }
            }
        });
    });
    $("#logout").bind('click',function(){
        $.post("login.php?action=logout",function(msg){
            if(msg==1){
                $("#result").remove();
                var div = '<div id="login-form">
<div class="control-group-email">
<label class="control-label">邮箱</label> <input type="email" class="form-control" name="email" id="email" placeholder="请输入可用的邮箱地址">
</div>
<div class="control-group-password">
<label class="control-label">密码</label> <input type="password" class="form-control" name="password" id="password">
</div>
<span id="helpBlock" class="help-block">没有帐号<a href="register.php">点击这里</a></span><button type="button" class="btn btn-default" data-toggle="modal" data-target="#myModal"><span class="fa fa-weibo" aria-hidden="true"></span></button><button type="button" class="btn btn-default" data-toggle="modal" data-target="#myModal"><span class="fa fa-weixin" aria-hidden="true"></span></button><button type="button" class="btn btn-default" data-toggle="modal" data-target="#myModal"><span class="fa fa-qq" aria-hidden="true"></span></button><div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">关闭</button><button type="submit" class="btn btn-primary" id="btn-login">登录</button>
</div>
</div>';
                $("#login").append(div);
            }
        });
    });
});
```
index.php

```
<div id="login">
                                  
<?php if(isset($_SESSION['email'])){
?>



<div id="result">
<p><strong><?php echo $_SESSION['email'];?></strong>，恭喜您登录成功！</p>
<p>您这是第<span><?php echo $_SESSION['login_counts'];?></span>次登录本站。</p>
<p>上次登陆本站的时间是：<span><?php echo date('Y-m-d H:i:s',$_SESSION['login_time']);?>
</span></p>
<p><a href="#" id="logout">【退出】</a></p>
 </div>



                                  <?php }else{?>

                                  <div id="login-form">
                                    <div class="control-group-email">
                                      <label class="control-label">邮箱</label> 
                                        <input type="email" class="form-control" name="email" id="email" placeholder="请输入可用的邮箱地址">
                                    </div>
                                    <div class="control-group-password">
                                      <label class="control-label">密码</label> 
                                        <input type="password" class="form-control" name="password" id="password">
                                    </div>

                                    <span id="helpBlock" class="help-block">没有帐号<a href="register.php">点击这里</a></span>

                                    <button type="button" class="btn btn-default" data-toggle="modal" data-target="#myModal">
                                        <span class="fa fa-weibo" aria-hidden="true"></span></button>
                                    <button type="button" class="btn btn-default" data-toggle="modal" data-target="#myModal">
                                        <span class="fa fa-weixin" aria-hidden="true"></span></button>
                                    <button type="button" class="btn btn-default" data-toggle="modal" data-target="#myModal">
                                        <span class="fa fa-qq" aria-hidden="true"></span></button>
                             <div class="modal-footer">
                                <button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
                                <button type="submit" class="btn btn-primary" id="btn-login">登录</button>
                            </div>
                          <?php } ?>
                        </div>


                            
                        


                                                                                                                        
                     <h2>回复内容：</h2>
                      
                                                            
<p>php</p>

<pre class="brush:php;toolbar:false"><code><?php session_start();
include ('conn.php');

$action = $_GET['action'];
if ($action == 'login') {  //登录
    $email = $_POST['email'];
    $pass = $_POST['password'];
    if (empty ($email)) {
        echo '邮箱不能为空';
        exit;
    }
    if (empty ($pass)) {
        echo '密码不能为空';
        exit;
    }
    // $md5pass = md5($password);
    $query = mysql_query("select * from user where email='$email'");

    $us = is_array($row = mysql_fetch_array($query));

    $ps = $us ? $pass == $row['password'] : FALSE;
    if ($ps) {
        $counts = $row['login_counts'] + 1;
        $_SESSION['email'] = $row['email'];
        $_SESSION['login_time'] = $row['login_time'];
        $_SESSION['login_counts'] = $counts;
        $ip = get_client_ip();
        $logintime = mktime();
        $rs = mysql_query("update user set login_time='$logintime',login_ip='$ip',login_counts='$counts'");
        if ($rs) {
            echo '1';exit;
            $arr['success'] = 1;
            $arr['msg'] = '登录成功！';
            $arr['email'] = $_SESSION['email'];
            $arr['login_time'] = date('Y-m-d H:i:s',$_SESSION['login_time']);
            $arr['login_counts'] = $_SESSION['login_counts'];
        } else {
            $arr['success'] = 0;
            $arr['msg'] = '登录失败';
        }
    } else {
        $arr['success'] = 0;
        $arr['msg'] = '用户名或密码错误！';
    }
    echo json_encode($arr);
}
elseif ($action == 'logout') {  //退出
    unset($_SESSION);
    session_destroy();
    echo '1';
}
```
js

```
// JavaScript Document
$(function(){
    $("#email").focus();
    $("input:text,textarea,input:password").focus(function() {
        $(this).addClass("cur_select");
    });
    $("input:text,textarea,input:password").blur(function() {
        $(this).removeClass("cur_select");
    });

    $("#btn-login").bind('click',function(){
        var email = $("#email").val();
        var password = $("#password").val();
        
        if(email==""){
            $(".control-group-email").removeClass('has-success').addClass("has-error");
            $('<div class="help-block-text"></code>
Copy after login
').text("邮箱不能为空！").appendTo($('.control-group-email')); $("#email").focus(); return false; }else{ $(".control-group-email").removeClass("has-error").addClass("has-success") $('.help-block-text').remove(); $("#password").focus(); } if(password==""){ $(".control-group-password").removeClass("has-success").addClass("has-error"); $('
').text("密码不为空！").appendTo($('.control-group-password')); $("#password").focus(); return false; }else{ $(".control-group-password").removeClass("has-error").addClass("has-success") $('.help-block-text').remove(); $("#btn-login").focus(); } $.ajax({ type: "POST", url: "login.php?action=login", dataType: "json", data: {"email":email,"password":password}, beforeSend: function(){ $('
').addClass("loading").html("正在登录...").css("color","#999").appendTo('#btn-login').fadeOut(1000 ); }, success: function(json){ if(json.success==1){ $("#login-form").remove(); var div = "

"+json.email+"，恭喜您登录成功！

您这是第"+json.login_counts+ "次登录本站。

上次登录本站的时间是："+json.login_time+ "

【退出】

"; $("#login").append($('div')); }else{ // $("#msg").remove(); $('
').html(json.msg).css("color","#999").appendTo('.help-block').fadeOut(2000); return false; } } }); }); $("#logout").bind('click',function(){ $.post("login.php?action=logout",function(msg){ if(msg==1){ $("#result").remove(); var div = '
没有帐号点击这里
'; $("#login").append(div); } }); }); }); ``` index.php ```

，恭喜您登录成功！

您这是第次登录本站。

上次登陆本站的时间是：

【退出】

没有帐号点击这里

代码太破了，数据库连接，逻辑，html，js全面写在一起了。

Related labels：
ajax php
source：php.cn
Previous article：php 实例化对象疑惑？ Next article：ci3.0和laravel5.0该如何选择?
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
Display AWS PDF files in Bootstrap mode in Laravel I have downloaded aws url like https://xxx-xx-dev.s3.ap-south-1.amazonaws.com/std_check/65...
From 2024-04-04 22:16:18
0
1
1450
Revised title: Calculate total based on checkbox selection I'm developing a simple financial tracking application. In the application, there is a tab...
From 2024-04-04 13:45:50
0
1
3465
Generating content using Ajax - scrolling to Id doesn't work I generate page content based on data obtained via ajax. The problem I'm having is that wh...
From 2024-04-04 09:29:39
0
1
397
How to pass multiple lists from ajax to Django I have a problem, I want to get all the data from the list, so I want to loop through each...
From 2024-04-03 23:20:06
0
1
362
Upload multiple image files in CodeIgniter using Ajax and PHP I'm having trouble uploading multiple image files to the server side. It would be great if...
From 2024-04-03 22:35:03
0
1
318
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template