一款简单的无刷新验证手机号是否注册:
客户端实现:
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<!DOCTYPE html>
< html >
< head >
< meta charset = "utf-8" >
< style >
#btn{width:80px;height:30px;}
</ style >
</ head >
< body >
< form >
请输入手机号:
< input type = "text" id = "name" name = "name" >
< input type = "button" onclick = "show()" id = "btn" value = "验证" >
</ form >
< p id = "txt" ></ p >
< script >
var usernamereg = /^1(3|4|5|7|8)\d{9}$/;
function show(){
var name=document.getElementById("name").value;
var xmlHttp=new XMLHttpRequest();
var url="post.php";
xmlHttp.onreadystatechange=function stateChanged()
{
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){
if(!usernamereg.test(name)){
document.getElementById("txt").innerHTML="手机号有误";
}else{
document.getElementById("txt").innerHTML=xmlHttp.responseText
}
}
}
xmlHttp.open("POST",url,true);
xmlHttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
xmlHttp.send("name=" + name);
}
</ script >
</ body >
</ html >
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服务端实现:
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<? php
$ con = mysqli_connect ('localhost', 'username', 'password');
if(! $con )
{
die('连接失败: ' . mysqli_error($con));
}
mysqli_select_db($con,'bdm256727651_db');
$ username = "select userName FROM Forms where userName = '$_POST[name]' " ;
$ result = mysqli_query ($con,$username );
$ rows = mysqli_num_rows ($result);
if($rows){
echo "手机号已注册" ;
exit;
}else{
echo "手机号可用";
}
mysqli_close($con)
?>
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以上这篇ajax+php实现无刷新验证手机号的实例就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持服务器之家。
原文链接:http://blog.csdn.net/hjw453321854/article/details/78805769