php+jquery ajax郵箱地址無重新整理驗證執行個體

來源:互聯網
上載者:User

index.php頁面

 代碼如下 複製代碼

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns=http://www.111cn.net>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>php jquery check username ajax檢查帳號唯一性</title>
<link href="../style.css" rel="stylesheet" type="text/css" />

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.js"></script>
<script>
$(document).ready(function(){
$('#username').keyup(username_check);
});
 
function username_check(){ 
var username = $('#username').val();
if(username == "" || username.length < 4){
$('#username').css('border', '3px #CCC solid');
$('#tick').hide();
}else{

jQuery.ajax({
   type: "POST",
   url: "check.php",
   data: 'username='+ username,
   cache: false,
   success: function(response){
if(response == 1){
 //不可以註冊
 $('#username').css('border', '3px #C33 solid'); 
 $('#tick').hide();
 $('#cross').fadeIn();
 }else{
 $('#username').css('border', '3px #090 solid');
 $('#cross').hide();
 $('#tick').fadeIn();
      }

}
});
}

 

}

</script>

<style>
#username{
 padding:3px;
 font-size:18px;
 border:3px #CCC solid;
}

#tick{display:none}
#cross{display:none}
 

</style>
</head>

<body>

Username: <input name="username" id="username" type="text" />
<img id="tick" src="tick.png" width="16" height="16"/>
<img id="cross" src="cross.png" width="16" height="16"/>

</body>
</html>

php驗證頁面,此頁面接收到jquery ajax post過來的資料進行驗證並傳回值

 代碼如下 複製代碼

<?php

# FileName="Connection_php_mysql.htm"
# Type="MYSQL"
# HTTP="true"
$hostname_lr = "localhost";
$database_lr = "ordersiliconebracelets";
$username_lr = "root";
$password_lr = "";
$lr = mysql_pconnect($hostname_lr, $username_lr, $password_lr) or trigger_error(mysql_error(),E_USER_ERROR);
mysql_query("set names utf8;");
//if ($lr) {
//echo "非常好,MYSQL串連成功了!";
//} else {
//echo "不好意思,失敗了!";
//}
mysql_select_db($database_lr, $lr);

//
$username = trim(strtolower($_POST['username']));
$username = mysql_escape_string($username);

if (eregi("^[_.0-9a-z-]+@([0-9a-z][0-9a-z-]+.)+[a-z]{2,3}$",$username)) {
 //email通過檢查
 $query = "SELECT email FROM user WHERE email = '$username' LIMIT 1";
 $result = mysql_query( $query );
 $num = mysql_num_rows($result);
 
 echo $num;
}
else

{
echo "1";//不能註冊

}
?>

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