ajax session 登陆要刷新才能出数据
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 id="回复内容">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>
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