<?php ob_start(); session_start(); class CC{ private $REFURL="http://www.abc.com"; //登陆成功后转换页面 private $LoginFLAG=false; //登陆成功标志 private $loginFILE="loginmsg.txt"; //信息文件 function setFlag($flag){ $this->loginFLAG=$flag; } function check(){ global $_POST; if(file_exists($this->loginFILE)&& (time()-filemtime($this->loginFILE))<60){//用户登陆存在而且有效 $info=file($this->loginFILE); $username=trim($info[0]); //已在线的登陆用户名 $password=trim($info[1]); //已在线密码(可以不保存) $ip =trim($info[2]); //已在线IP $sid =trim($info[3]); //已在线PORT if(strcmp($_SESSION[LoginUser],$username)==0){ if(strcmp($_SESSION['LoginPw'],$password)==0){ if(strcmp($_SERVER[REMOTE_ADDR],$ip)==0){ if(strcmp(session_id(),$sid)==0){ $this->setFlag(true); echo "<h3>您的帐户可以确定是唯一的!</h3>"; $cf=fopen($this->loginFILE,"a+"); fputs($cf,"rna"); fclose($cf); echo "<meta http-equiv=refresh content="10;url=t.php">"; //echo "<iframe src="t.php" frameborder=0 width=0 height=0></iframe>"; }else{ echo "不允许帐户在局网上同时登陆.. ".$_SERVER[REMOTE_PORT]; $this->LoginFLAG=false; } }else{ echo "不允许使用帐户同时登陆..<br>"; $this->LoginFLAG=false; } }else{ echo "密码错误..<br>"; $this->LoginFLAG=false; } }else{ //这里验证身份如果正确则 echo "帐户登陆时发生错误!用户名错误<br><pre>"; } }else{ if(isset($_POST[LoginUser])){ $_SESSION[LoginUser]=$_POST[LoginUser]; $_SESSION[LoginPw]=$_POST[LoginPw]; $fp=fopen($this->loginFILE,"w"); $msg=$_POST['LoginUser']."rn".$_POST['LoginPw']."rn".$_SERVER[REMOTE_ADDR]."rn".session_id();; fputs($fp,$msg); fclose($fp); }else{ $outtime=time()-filemtime($this->loginFILE)-60; echo "登陆不存在或您已经超时(".$outtime."秒)..."; } } } function Wfrom(){ global $_POST; if(!file_exists($this->loginFILE) ||(time()-filemtime($this->loginFILE))>60){ //登陆失败 echo <<<LOGINFORM <Form action="$_SERVER[PHP_SELF]" method="post" name="Loginform"> <table cellpadding=0 border=0> <tr><td> 用户名:<td><input type="text" name="LoginUser"></span><br> <tr><td>密码:<td><input type="password" name="LoginPw"></span><br> <tr><td> <td><input type="button" value=" Login " onclick="if(this.form.LoginUser.length*this.form.LoginPw.length!=0){this.form.submit();}else{return false;}"> </table> </form> LOGINFORM; }else{ echo "已有用户登陆"; } } } $D=new CC; $D->check(); $D->Wfrom(); ?> By phpfans.net收集整理 |