总结：
前段：
1请求邮箱验证
2密码验证
3确认密码验证
4备注验证
php：
1请求邮箱验证
2密码验证
3确认密码验证
4备注验证
跟前端的一样，都需要验证
实例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
table{
background-color: #f0f8ff;
border-radius: 5%;
box-shadow: 3px 3px 3px #888;
padding: 15px;
margin:30px auto;
}
table td{
padding: 10px;
}
table caption{
font-size: 1.2em;
margin-bottom: 10px;
}
form table button{
width: 100px;
height: 30px;
cursor: pointer;
border: none;
background-color: #00ffff;
color: white;
}
textarea{
resize: none;
}
form table button:hover {
background-color: blue;
color: white;
font-size: 1.2em;
}
</style>
</head>
<body>
<form action="check.php" method="post">
<table>
<caption>用户注册</caption>
<tr>
<td><label for="email">邮箱：</label></td>
<td><input type="text" name="email" id="email" value="" autofocus=""></td>
</tr>
<tr>
<td><label for="password1">密码:</label></td>
<td><input type="password1" name="password1" id="password1"></td>
</tr>
<tr>
<td><label for="password2">确认:</label></td>
<td><input type="password2" name="password2" id="password2"></td>
</tr>
<tr>
<td><label for="secret">性别:</label></td>
<td> <!-- 单选与众不同,点击标签会自动选择默认值 -->
<input type="radio" name="gender" id="male" value="male" ><label for="male">男</label>
<input type="radio" name="gender" id="female" value="female"><label for="female">女</label>
<input type="radio" name="gender" id="secret" value="secret" checked="" ><label for="secret">保密</label>
</td>
</tr>
<tr>
<td><label for="level">级别</label></td>
<td>
<select name="level" id="level">
<option value="0">小白</option>
<option value="1" selected="">中级</option>
<option value="2">大神</option>
</select>
</td>
</tr>
<tr>
<td><label for="php">语言:</label></td>
<td> <!-- 点击标签会把php做为默认项之一选中 -->
<input type="checkbox" name="lang[]" id="php" value="php" checked><label for="php">php</label>
<input type="checkbox" name="lang[]" id="java" value="java"><label for="java">java</label>
<input type="checkbox" name="lang[]" id="python" value="php"><label for="python">python</label>
<input type="checkbox" name="lang[]" id="c" value="c"><label for="c">c</label>
</td>
</tr>
<tr>
<td valign="middle"><label for="comment">简介:</label></td>
<td><textarea name="comment" id="comment" rows="3" cols="30"></textarea></td>
</tr>
<tr>
<td colspan="2" align="center">
<button type="submit" name="submit" id="submit" value="submit">提交</button>
</td>
</tr>
</table>
</form>
<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script type="text/javascript">
//请求邮箱验证
$('#email').blur(function(){
$.post('./check.php?check=email','email='+$('#email').val(),function(data){
switch(data.status){
case 0:
$('td').find('span').remove()
$('#email').after('<span>').next().text(data.msg).css('color','red').prev().focus()
break;
case 1:
$('td').find('span').remove()
$('#email').after('<span>').next().text(data.msg).css('color','red').prev().focus()
break;
case 2:
$('td').find('span').remove()
$('#email').after('<span>').next().text(data.msg).css('color','blue')
break;
}
},'json')
})
//密码验证
$('#password1').blur(function(){
if ($('email').val().length == 0){
return false
}
$.post('./check.php?check=password1','password1='+$('#password1').val(),function(data){
if (data.status == 0) {
$('td').find('span').remove()
$('#password1').after('<span>').next().text(data.msg).css('color','red').prev().focus()
}
},'json')
})
//确认密码
$('#password2').blur(function(){
if ($('#email').val().length == 0) {
return false
}
$.post('admin/check.php?check=password2', {
password1: $('#password1').val(),
password2: $('#password2').val()
}, function(data){
switch(data.status) {
case 0:
$('td').find('span').remove()
$('#password2').after('<span>').next().text(data.msg).css('color', 'red').prev().focus();
break;
case 1:
$('td').find('span').remove()
$('#password2').after('<span>').next().text(data.msg).css('color', 'red').prev().focus();
break;
case 2:
$('td').find('span').remove()
$('#password2').after('<span>').next().text(data.msg).css('color', 'green')
break;
}
},'json')
})
//备注验证
$('#comment').blur(function(){
$.post('./check.php?check=comment','comment='+$('#comment').val(),function(data){
switch(data.status){
case 0:
$('td').find('span').remove()
$('#comment').after('<span>').next().text(data.msg).css('color','red')
case 1:
$('td').find('span').remove()
$('#comment').after('<span>').next().text(data.msg).css('color','red')
break;
case 2:
$('td').find('span').remove()
$('#comment').after('<span>').next().text(data.msg).css('color','blue')
break;
}
},'json')
})
</script>
</body>
</html>运行实例 »
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实例
<?php
//echo '<pre>';
//print_r($_POST);
//echo $_GET['check'];
switch ($_GET['check']) {
case 'email':
$email = $_POST['email']; // 设置默认值
if (empty($email)) {
exit(json_encode(['status'=>0,'msg'=>'邮箱不能为空']));
} else if (in_array($email,['123456@qq.com','111111@qq.com'])){
exit(json_encode(['status'=>1,'msg'=>'邮箱已占用']));
} else {
exit(json_encode(['status'=>2,'msg'=>'可以注册']));
}
break;
case 'password1':
$password1 = $_POST['password1']; // 设置默认值
if (empty($password1)) {
exit(json_encode(['status'=>0,'msg'=>'密码不能为空']));
}
break;
//验证确认密码
case 'password2':
$password1 = $_POST['password1'];
$password2 = $_POST['password2'];
if (empty($password2)) {
exit(json_encode(['status'=>0,'msg'=>'确认不能为空']));
} else if ($password1 != $password2){
exit(json_encode(['status'=>1,'msg'=>'二次密码不相等']));
} else {
exit(json_encode(['status'=>2,'msg'=>'验证通过']));
}
break;
case 'comment':
//验证备注
$comment = $_POST['comment']; // 设置默认值
if (empty($comment)) {
exit(json_encode(['status'=>0,'msg'=>'备注不能为空']));
} else if ($('#email').val().length <= 40){
exit(json_encode(['status'=>1,'msg'=>'备注不能少于40个字']));
} else {
exit(json_encode(['status'=>2,'msg'=>'验证通过']));
}
break;
}运行实例 »
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