Example explanation of ajax+php to implement non-refresh verification of mobile phone number-PHP Tutorial-php.cn

Example explanation of ajax+php to implement non-refresh verification of mobile phone number

jacklove

Release： 2023-04-02 13:18:02

Original

1483 people have browsed it

The editor below will share with you an example of using ajax php to verify mobile phone numbers without refreshing. It has a good reference value and I hope it will be helpful to everyone. Let’s follow the editor and take a look.

A simple no-refresh verification method to verify whether a mobile phone number is registered:

Client implementation:

<!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>

Copy after login

Server implementation:

<?php
$con = mysqli_connect(&#39;localhost&#39;, &#39;username&#39;, &#39;password&#39;);
if(! $con )
{
 die(&#39;连接失败: &#39; . mysqli_error($con));
}
mysqli_select_db($con,&#39;bdm256727651_db&#39;);
$username = "select userName FROM Forms where userName = &#39;$_POST[name]&#39; ";
$result = mysqli_query($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)
?>

Copy after login

The above example of ajax php implementing non-refresh verification of mobile phone number is all the content shared by the editor. I hope it can help It is a reference for everyone, and I hope everyone will support the php Chinese website.

Articles you may be interested in:

Explanation of a simple implementation method for PHP to read and output XML file data

thinkphp5 Explanation of the method of loading static resource paths and constants

A brief analysis of closures and anonymous functions in PHP

The above is the detailed content of Example explanation of ajax+php to implement non-refresh verification of mobile phone number. For more information, please follow other related articles on the PHP Chinese website!