电梯直达

1楼 [收藏(0)] [报告]

发表于 2005-12-19 15:32 |只看该作者 |倒序浏览

xajax类：http://xajax.sourceforge.net
昨晚开始接触xajax，感觉很不错，于是开始写了一些代码，希望能对象我这样刚学的新手有用，高手就别看了。。呵呵。。。

<?php
require('xajax.inc.php');
$xajax = new xajax;
$xajax->registerFunction("check");
function check($data)
{
$response = new xajaxResponse();
if (strlen($data['username'])<3)
{
$response->addAssign("info","innerHTML","用户名长度太短");
return $response->getxml();
}
else if(strlen(($data['username']))>20)
{
$response->addAssign("info","innerHTML","用户名长度太长");
return $response->getxml();
}
else
{
$response->addAssign("info","innerHTML","用户名符合规格");
return $response->getxml();
}
}
$xajax->processRequests();
$xajax->printJavascript();
?>
<script language="javascript">
function chkform()
{
xajax_check(xajax.getFormValues('form1'));
}
</script>
<form id="form1" name="form1" action="?" method="post">
username:<input type="text" id="username" name="username"><div id="info" name="info"></div>
password:<input type="text" id="password" name="password" onclick="chkform();">
</form>

复制代码

检查用户名是否存在

<?php
require('xajax.inc.php');
$xajax = new xajax;
function userisexist($username)
{
$conn=@mysql_connect('localhost','root','root');
if (!$conn){die(mysql_errorno());}
$selectdb=@mysql_select_db('phpwind');
if (!$selectdb){die(mysql_errorno());}
$sql="select username from pw_members where username='".$username."'";
$result=mysql_query($sql);
$rs=mysql_num_rows($result);
if ($rs==true)
{
return true;
}
else
{
return false;
}
}
function checkuser($username)
{
$response = new xajaxResponse();
if (userisexist($username)==true)
{
$response->addAssign("showmsg","innerHTML","对不起，".$username."已经存在");
return $response->getxml();
}
else
{
$response->addAssign("showmsg","innerHTML","恭喜，".$username."可以注册");
return $response->getxml();
}
}
$xajax->registerFunction('checkuser');
$xajax->processRequests();
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<?php $xajax->printJavascript(); ?>
<script language="javascript">
function checkform()
{
xajax_checkuser(document.getElementById('username').value);
}
</script>
</head>
<body>
<form action="?" id="form1" name="form1">
<input type="input" id="username" name="username"><div id="showmsg" name="showmsg"></div>
<input type="button" id="checkbt" name="checkbt" onclick="checkform();" value="Check Now">
</form>
</body>
</html>

复制代码

使用xajax检测帐号是否可以注册。
使用的是 xajax 0.2
check.php

<?php
require('reg.common.php');
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<?php $xajax->printJavascript(); ?>
<script language="javascript">
function checkform()
{
xajax_checkreg(document.getElementById('username').value);
}
</script>
</head>
<body>
<form action="?" id="form1" name="form1">
<input type="input" id="username" name="username"><div id="showmsg" name="showmsg"></div>
<input type="button" id="checkbt" name="checkbt" onclick="checkform();" value="Check Now">
</form>
</body>
</html>

复制代码

reg.common.php

复制代码

reg.server.php

<?php
require_once('reg.common.php');
function userisexist($username)
{
$conn=@mysql_connect('localhost','root','root');
if (!$conn){die(mysql_errorno());}
$selectdb=@mysql_select_db('phpwind');
if (!$selectdb){die(mysql_errorno());}
$sql="select username from pw_members where username='".$username."'";
$result=mysql_query($sql);
$rs=mysql_num_rows($result);
if ($rs==true)
{
return true;
}
else
{
return false;
}
}
function isvalidname($username)
{
$badkey=array("\\",'|','??',' ',"'",'"','/','*',',','~',';','<','>','$',"\r","\t","\n");
foreach($badkey as $value)
{
if (strpos($username,$value)!==false)
{
return false;
exit;
}
}
return true;
}
function checkreg($username)
{
$response = new xajaxResponse();
if (strlen($username)<3||strlen($username)>20)
{
$response->addClear('showmsg',"innerHTML");
$response->addAlert('对不起，用户名太长或者太短！');
}
elseif(isvalidname($username)==false)
{
$response->addClear('showmsg',"innerHTML");
$response->addAlert('对不起，用户名含有非法字符！');
}
else
{
if(userisexist($username)==true)
{
$response->addAssign('showmsg',"innerHTML","对不起, ".$username." 已经存在！");
}
else
{
$response->addAssign('showmsg',"innerHTML","恭喜, ".$username." 可以使用!");
}
}
return $response;
}
$xajax->processRequests();
?>