本文实例讲述了php实现的简单检验登陆类。分享给大家供大家参考。具体如下：

<?php class checklogin { var $name; var $pwd; function __construct($username,$password) { $this->name=$username; $this->pwd=$password; } function checkinput() { global $db; $sql="select * from tb_manager where name='$this->name' and pwd='$this->pwd'"; $res=$db->query($sql); $info=$db->fetch_array($res); if($info['name']==$this->name and $info['pwd']==$this->pwd) { $_SESSION[admin_name]=$info[name]; $_SESSION[pwd]=$info[pwd]; echo "<script>alert('登录成功！);window.location.href='index.php';</script>"; } else { echo "<script language='javascript'>alert('登录失败！');history.back();</script>"; exit; } } } ?>

希望本文所述对大家的php程序设计有所帮助。