<?php
$myfile = fopen("person.txt", "a+") or die("Unable to open file!");
fclose($myfile);
$myfile = fopen("person.txt", "r") or die("Unable to open file!");
if(!preg_match("/^[a-zA-Z0-9]*$/",$_POST['sid'])||!preg_match("/^[0-9]*$/",$_POST['spassword']))
{
	echo "输入账号或密码的格式错误，账号只能是英文字母或数字的组合，密码只能是数字的组合";

	return;
	
	
	}
function gets($myfile)
{
	$num="";
	$num2="";
	while(1)
	{
		if(feof($myfile)||($num2=fgetc($myfile))=="&")
		{
			return $num;
			}
		$num=$num.$num2;
		
	}
	
	
}
if(!feof($myfile))
	fgetc($myfile);
	
while(!feof($myfile))
{
$num3=gets($myfile);
$num4=gets($myfile);
if($num3==$_POST['sid'])
{
	echo "账号与存在，请用其他账号";
	fclose($myfile);
	return ;
}
}
fclose($myfile);

$myfile = fopen("person.txt", "a+") or die("Unable to open file!");
fwrite($myfile,"&");
fwrite($myfile,$_POST['sid']);
fwrite($myfile,"&");
fwrite($myfile,$_POST['spassword']);

fclose($myfile);
mkdir("upload/".$_POST['sid']);
mkdir("upload/".$_POST['sid']."/send");
$myfile = fopen("upload/".$_POST['sid']."/send/sendingperson.txt","w");
fclose($myfile);

echo "注册成功！";





?>