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HomeBackend DevelopmentPHP Tutorial聊天室技术(一) -- 大门_PHP

聊天室技术(一) -- 大门_PHP

Jun 01, 2016 pm 12:34 PM
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聊天室可以采用完全自由的方式运行,你可以随意输入呢称,不用密码,不保存你的聊天状态,优点是:自由,非常适合于游客!另外一个方法是注册聊天室,每个进入聊天室的人都要输入自己的用户名和密码才能进入!优点:充分体现个性,非常适合于老朋友,他们的呢称不会被人恶意侵占使用.我的聊天室使用注册方法!

 

注册通常采用2种方法:1,先注册然后进入聊天;2,自动注册,然后在里面修改自己的资料!我采用第2种方法!!每个新进入的聊友的用户名会被自动保存到注册到数据库内,下次登陆必须输入准确的密码才能进入!

下面是判断部分!本程序使用文本数据库!

//$useronline为在线人的数据文件名称
//$useronlinelock为在线人的锁定标志
//$register为已经注册的数据文件名称
//$registerlock为注册文件的锁定标志
//$split为分隔符

//登陆参数 enter
if($action == "enter")
{
//当前时间秒数
$timecurrent = date("U");

//锁定在线人数文件,防止同时修改同一个文件
while( file_exists($useronlinelock))
{
if(!file_exists($useronlinelock))
{
break;
}
}

//创建临时文件
fclose(fopen($useronlinelock,"w"));

//读入在线用户和已经注册用户的信息:密码,昵称,更新时间
$useronline = file($useronline);
$register = file($register);

//用于判断登陆是否成功的标志
$namesign=0;

//判断用户名,密码的错误,用户名不允许为空,不允许超过10个字符,密码不允许超过20个字符
if(($name =="") || (strlen($name) > 10) || (strlen($pass) > 20) )
{
print("没有昵称或密码过长");
//登陆失败
$namesign=1;
//删除临时文件
unlink($useronlinelock);
}
else
{
//查找是否已经有人注册或者密码错误
$foundsign=0;
for($i=0;$i{
//分割
$tempregister = split($split,$register[$i],99);
//找到已经注册的用户名
if( $name == $tempregister[0] )
{
//已经找到标志
$foundsign=1;
//密码正确吗
if($pass != $tempregister[1])
print("密码错了!");
//登陆失败
$namesign=1;
unlink($useronlinelock);
break;
}
else
{
//老用户登陆成功
$namesign=0;
break;
}
}

}

//如果没有找到这个用户名,那么就自动注册
if(!$foundsign)
{
//保存用户名和密码
$handle = fopen($register,"a");
fputs($handle,"$name$split$pass$splitrn");
fclose($handle);
//新用户登陆成功
$namesign=0;
}
}
}
if(!$namesign)
{
//更新在线人的名单
$useronlinehandle = fopen($useronline,"w");

//判断是否已经在里面,只是刷新页面
$updatesign = 0;
for($i=0;$i{
$usertemp=split($split,chop($useronline[$i]),99);
if($name == $usertemp[0])
{
//更新标志
$updatesign = 1;
fputs($useronlinehandle,$useronline[$i]);
}
else
{
fputs($useronlinehandle,$useronline[$i]);
}
}
//如果没有在里面,则增加到里面
if(!$updatesign)
fputs($useronlinehandle,"$name$split$level$split$pass$split$timecurren
trn");
fclose($useronlinehandle);

//去掉缩定
unlink($useronlinelock);

//登陆成功
}

到这里,用户的验证已经完成,聊友已经合法的进入了聊天室,携带者呢称和密码

原作者:howtodo
来源:php2000.com

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