<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<title>用户注册 </title> <link href="../css/styles.css" rel="stylesheet" type="text/css" media="all"/> <script type="text/javascript" src="../js/jquery.min.js"></script>
</head>
<body><div class="message warning">
<div class="inset">
<div class="login-head">
<h1>用户注册</h1> <div class="alert-close"></div>
</div> <form method="post" action="zuce.php">
<ul>
<li><input type="text" class="text" name="username" value="用户名" id="name"></li>
<li id="tishi1"></li>
<li><input type="password" name="password" value=""/> <a href="#" class="icon lock"></a></li>
<li><input type="password" name="rpwd" value=""/> <a href="#" class="icon lock"></a></li>
</ul> <div class="submit">
<input type="submit" value="注册">
<h4><a href="#">忘记密码?</a></h4> <div class="clear"></div>
</div>
</form>
</div>
</div><!--- footer --->
<div class="footer">
<p>Copyright © 2010-2016.<a href="http://localhost/myblog/index.php">我的网站</a></p>
</div><script>
document.getElementById('name').onblur=function(){
var request=new XMLHttpRequest() ;
request.open('get','zuce.php?action=checkname&name='+document.getElementById('name').value);
request.send();
request.onreadystatechange=function(){
if(request.readyState==4&& request.status==200){
var text=request.responseText;
alert(text);
}
}
}
</script>
</body>
</html>
php代码如下
<?php
/**
* Created by PhpStorm.
* User: Administrator
* Date: 2016/11/7
* Time: 9:48
*/
$db = new pdo('mysql:host=localhost;dbname=lol', 'root') or die('connet failed');if ($db) {
$db->exec('set names utf8');
}
include_once 'reg.html';
$action = isset($_GET['action']) ? $_GET['action'] : '';
if ($_POST) {
$username = $_POST['username'];
$sq = "select * from zc WHERE yh='$username'";
$sql = $db->query($sq)->fetch();
if ($sql) {
echo "<script>alert('用户名重复')</script>";
} else {
$pass = $_POST['password'];
$rpass = $_POST['rpwd'];
if (empty($pass)) {
echo "<script>alert('密码不能为空')</script>";
} else {
if ($pass == $rpass) {
$tjl = "insert into zc (id,yh,password,rpassword)VALUES (null,'$username','$pass','$rpass')";
$tj = $db->exec($tjl);
if ($tj) { echo "<script>alert('注册成功');location.href='../../dengru.php';</script>";
} else {
echo "<script>alert('注册失败')</script>";
}
} else {
echo "<script>alert('两次密码输入不一致')</script>";
}
}
}
} elseif ($action == 'checkname') {
$name = $_GET['name'];
$sq = "select * from zc WHERE yh='$name'";
$sql = $db->query($sq)->fetch();
if ($sql) {
echo "存在";
} else {
echo "不存在";
}
}
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<title>用户注册 </title> <link href="../css/styles.css" rel="stylesheet" type="text/css" media="all"/> <script type="text/javascript" src="../js/jquery.min.js"></script>
</head>
<body><div class="message warning">
<div class="inset">
<div class="login-head">
<h1>用户注册</h1> <div class="alert-close"></div>
</div> <form method="post" action="zuce.php">
<ul>
<li><input type="text" class="text" name="username" value="用户名" id="name"></li>
<li id="tishi1"></li>
<li><input type="password" name="password" value=""/> <a href="#" class="icon lock"></a></li>
<li><input type="password" name="rpwd" value=""/> <a href="#" class="icon lock"></a></li>
</ul> <div class="submit">
<input type="submit" value="注册">
<h4><a href="#">忘记密码?</a></h4> <div class="clear"></div>
</div>
</form>
</div>
</div><!--- footer --->
<div class="footer">
<p>Copyright © 2010-2016.<a href="http://localhost/myblog/index.php">我的网站</a></p>
</div><script>
document.getElementById('name').onblur=function(){
var request=new XMLHttpRequest() ;
request.open('get','zuce.php?action=checkname&name='+document.getElementById('name').value);
request.send();
request.onreadystatechange=function(){
if(request.readyState==4&& request.status==200){
var text=request.responseText;
alert(text);
}
}
}
</script>
</body>
</html>
php代码如下
<?php
/**
* Created by PhpStorm.
* User: Administrator
* Date: 2016/11/7
* Time: 9:48
*/
$db = new pdo('mysql:host=localhost;dbname=lol', 'root') or die('connet failed');if ($db) {
$db->exec('set names utf8');
}
include_once 'reg.html';
$action = isset($_GET['action']) ? $_GET['action'] : '';
if ($_POST) {
$username = $_POST['username'];
$sq = "select * from zc WHERE yh='$username'";
$sql = $db->query($sq)->fetch();
if ($sql) {
echo "<script>alert('用户名重复')</script>";
} else {
$pass = $_POST['password'];
$rpass = $_POST['rpwd'];
if (empty($pass)) {
echo "<script>alert('密码不能为空')</script>";
} else {
if ($pass == $rpass) {
$tjl = "insert into zc (id,yh,password,rpassword)VALUES (null,'$username','$pass','$rpass')";
$tj = $db->exec($tjl);
if ($tj) { echo "<script>alert('注册成功');location.href='../../dengru.php';</script>";
} else {
echo "<script>alert('注册失败')</script>";
}
} else {
echo "<script>alert('两次密码输入不一致')</script>";
}
}
}
} elseif ($action == 'checkname') {
$name = $_GET['name'];
$sq = "select * from zc WHERE yh='$name'";
$sql = $db->query($sq)->fetch();
if ($sql) {
echo "存在";
} else {
echo "不存在";
}
}
echo "<script>alert('注册成功');location.href='../../dengru.php';</script>";
} else {
echo "<script>alert('注册失败')</script>";
}
} else {
echo "<script>alert('两次密码输入不一致')</script>";
php 不应该写这些的,应该直接输出内容,例如json格式。
$name = $_GET['name'];
$sq = "select * from zc WHERE yh='$name'";
$sql = $db->query($sq)->fetch();
if ($sql) {
echo "存在";
} else {
echo "不存在";
}
}
去掉,然后html network 里面返回的值也是一整个html的代码 劳烦大神帮帮忙