php面向对象的用户登录身份验证

本文实例为大家分享了php用户登录身份验证的具体代码,供大家参考,具体内容如下

一、代码

conn.php

<?php

$conn = new com("adodb.connection");

$connstr="driver={microsoft access driver (*.mdb)}; dbq=". realpath("data/db_database07_188.mdb");

$conn->open($connstr);

?>

index.php

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

<title>用户身份验证</title>

<link rel="stylesheet" type="text/css" href="css/style.css" rel="external nofollow" >

<style type="text/css">

<!--

.STYLE1 {color: #FFFFFF}

-->

</style>

</head>

<body>

<table width="250" border="0" align="center" cellpadding="1" cellspacing="0">

<tr>

<td height="75" bgcolor="#0099CC"><table width="250" height="75" border="0" cellpadding="0" cellspacing="1">

<form name="form1" method="post" action="index.php">

<tr>

<td height="25" colspan="2" bgcolor="#0099CC"><div align="center" class="STYLE1">用户身份验证</div></td>

</tr>

<tr>

<td width="60" height="25" bgcolor="#FFFFFF"><div align="center">用户名:</div></td>

<td width="187" bgcolor="#FFFFFF"><div align="left">&nbsp;<input type="text" name="username" size="22" class="inputcss"></div></td>

</tr>

<tr>

<td height="25" bgcolor="#FFFFFF"><div align="center">密码:</div></td>

<td height="25" bgcolor="#FFFFFF"><div align="left">&nbsp;<input type="password" name="userpwd" size="22" class="inputcss"></div></td>

</tr>

<tr>

<td height="25" colspan="2" bgcolor="#FFFFFF"><div align="center"><input name="submit" type="submit" value="登录" class="buttoncss"></div></td>

</tr>

</form>

</table></td>

</tr>

</table>

<?php

if($_POST[submit]!="")

{

$username=$_POST[username]; //接收提交的用户名

$userpwd=$_POST[userpwd]; //接收提交的密码

if(trim($username)==""||trim($userpwd)=="")

{

echo "<script>alert('请输入用户名或用户密码!');history.back();</script>";

exit;

}

class chk //定义密码验证类

{

private $name; //定义用户名属性

private $pwd; //定义密码属性

public function __construct($x,$y) //构造函数,对类的属性初始化

{

$this->name=$x;

$this->pwd=$y;

}

public function chkuser() //验证用户身份

{

include_once("conn.php");

$rs=new com("adodb.recordset"); //创建记录集对象

$rs->open("select * from tb_user where username='".$this->name."' and userpwd='".$this->pwd."'",$conn,3,1);

if($rs->eof || $rs->bof)

{

echo "<script>alert('对不起,密码或用户名错误!');history.back();</script>";

exit;

}

else

{

echo "<script>alert('恭喜您登录成功!');history.back();</script>";

exit;

}

}

}

$chk1=new chk($username,$userpwd); //对密码验证类进行实例化

$chk1->chkuser(); //调用chkuser()方法验证用户身份

}

?>

</body>

</html>

二、运行结果

以上是 php面向对象的用户登录身份验证 的全部内容, 来源链接: utcz.com/z/324854.html

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