一个基于mysql的登陆考证程序[MySQL防范]
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<?
/******************************************************
file name: login.PHP3
Login Check
编码: PHP 4
作者: Kevin Lee < webwing@21cn.com >
Database: MySQL.
Host: localhost Database : mydb
Table structure for table 'user'
--------------------------------------------------------
CREATE TABLE user (
id smallint(6) NOT NULL auto_increment,
user varchar(12) NOT NULL,
passwd varchar(12) NOT NULL,
name varchar(20),
email varchar(30),
level char(1),
status char(1),
UNIQUE id (id)
);
--------------------------------------------------------
*******************************************************/
?>
<script language="javascript">
function back(){
history.back();
}
function winclose(){
setTimeout("self.close()",10000);
}
</script>
<?
$db_id = mysql_pconnect("localhost", "root", "");
$sql="select id, user, passwd from user where user='".$name."' and passwd='".$pwd."'";
$result = mysql_db_query("mydb",$sql);
$row = mysql_fetch_array($result);
$id = $row[id] ;
if ($id!="") {
session_start();
session_register("yn");
$yn="yes" ;
echo "<HTML><body onload=\"javascript:winclose()\">";
echo "你已经成功登陆..."."<p>";
echo "<center>"."窗口10秒钟后自动关闭"."</center>";
echo "</body></html>";
}
else {
echo "帐号或密码错误!!!";
echo "<P>";
echo "<center>";
echo "<a href=\"#\" onclick=\"javascript:back()\">back</a>";
echo "</center>" ;
}
?>
<!--
file name: login.htm
-->
<html>
<head>
<title>系统登陆</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style type="text/CSS">
<!--
.css1 { font-size: 10pt; color: #FFCC66}
-->
</style>
</head>
<body bgcolor="#ffffff" topmargin=0 leftmargin=0>
<form method="post" action="login.php3">
<table width="210" bgcolor="#ffffff" height="106" bordercolor="navajowhite" border="1" style="WIDTH: 210px">
<tr bgcolor="#0000ff">
<td colspan="4">
<div align="center"><b><font color="#ffffff" face="楷体_GB2312">系统登陆</font></b></div>
</td>
</tr>
<tr bgcolor="#f9fde1" bordercolor="#cccccc">
<td width="71" >
<div align="center">用户帐号</div>
</td>
<td colspan="3" align=middle>
<input size="14" >
</td>
</tr>
<tr bgcolor="#f9fde1" bordercolor="#cccccc">
<td width="71" >
<div align="center">用户密码</div>
</td>
<td colspan="3" align=middle>
<input type="password" size="14" >
</td>
</tr>
<tr bgcolor="#f9fde1" bordercolor="#cccccc">
<td colspan="4" height="26" style="HEIGHT: 26px">
<div align="center">
<input type="submit" value=" 登 陆 " height="20" style="FONT-SIZE: smaller; HEIGHT: 22px">
</div>
</td>
</tr>
</table>
</form>
</body>
</html>
<?
/************************
file name: login_chk.php3
************************/
if ($yn!="yes") {
echo "<script language=\"javascript\">\n";
echo "<!-- \n";
echo "history.back () ;\n";
echo "window.open ('../login/login.htm','login','height=116,width=210,top=120,left=200,toolbar=no,menubar=no,scrobllbar=no,resizable=no,location=no,status=no')\n";
echo "--> \n";
echo "</script> \n";
exit;
}
?>
Example:
<? require("login_chk.php3"); ?>
<!--file name: sample.php3-->
<html>
<head></head>
<body>
Success! You have pass the checking.
</body>
<html>
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