#
# ob_start();
# session_start();
# class CC{
# private $REFURL="http://www.BkJia.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 "
您的帐户可以确定是唯一的!
";
# $cf=fopen($this->loginFILE,"a+");
# fputs($cf,"
a");
# fclose($cf);
# echo "
";
# //echo "
";
# }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..
";
# $this->LoginFLAG=false;
# }
# }else{
# echo "密码错误..
";
# $this->LoginFLAG=false;
# }
# }else{
# //这里验证身份如果正确则
# echo "帐户登陆时发生错误!用户名错误
";
# }
# }else{
# if(isset($_POST[LoginUser])){
# $_SESSION[LoginUser]=$_POST[LoginUser];
# $_SESSION[LoginPw]=$_POST[LoginPw];
# $fp=fopen($this->loginFILE,"w");
# $msg=$_POST[LoginUser]."
".$_POST[LoginPw]."
".$_SERVER[REMOTE_ADDR]."
".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;
# }else{
# echo "已有用户登陆";
# }
# }
# }
# $D=new CC;
# $D->check();
# $D->Wfrom();
# ?>
http://www.bkjia.com/PHPjc/486513.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/486513.htmlTechArticle# ?php # ob_start(); # session_start(); # class CC{ # private $REFURL=http://www.2cto.com; //登陆成功后转换页面 # private $LoginFLAG=false; //登陆成功标志 # private...