Multi-user file free upload voting system without database (2)_PHP tutorial

This is the download.php of this system, which is mainly responsible for downloading and counting. The file format is explained in the comments.



// Pass in num as the file number to be downloaded, col=column to be downloaded
//Add one to the number of ip downloads without timeout

//File format
//0Number<1 Author <2 File location<3 Voting count<4 Introduction<5 File size<6 Number of file downloads
//ip file format Address: Project: Time


$uploadto= "../uploadfile/".$col."/";//The subdirectory uploaded to
$cgiroot="http://eccct.51.net/cgi-bin/"; //Host plus current Directory

$pathtemp=explode("/",$HTTP_ENV_VARS["PATH_INFO"]);
$pathtemp[sizeof($pathtemp)-1]="";
$cgiroot=" http://".$HTTP_HOST.implode("/",$pathtemp);//Host plus current directory

$ipfile=$uploadto.$col.".ipd";//For downloading ip file
$overtime=4;//Timeout time hours

$goback="

The system will wait in 3 seconds Then return....<script>setTimeout('location.href="view.php?col=".$col.""',3000)</script>";
$recfile=$uploadto.$col.".lst";


//Take out the ip file
$fp=@fopen($ipfile,"r") or die("Sorry about that The vote is illegal".$goback);
$ipinfo=fread($fp,filesize($ipfile));
fclose($fp);
unlink($ipfile);
$times =getdate();
$abstime=$times["yday"].sprintf("%02d",$times["hours"]);
//Absolute time




//Remove the timeout ip
$ip_times=explode("|",$ipinfo);
$temp="";
$ipinfo="";

for($i=0;$i
$ip=explode(":",$ip_times[$i]);
if($ip[1]==""||$ip[0]==""||$ip[2]=="") continue;
                eval ('$temp='.$abstime. '-'.$ip[2].';');

if($temp<$overtime&&$temp>=0){

$ipinfo.=($ip_times[$ i]."|");
                                                                                                                                       ;
$fp=@fopen($ipfile,"w") or die("An error occurred".$goback);
fwrite($fp,$ipinfo);
fclose($fp);
$firstdown=0;//First download
}
else{
$firstdown=1;//Not the first download

$ipinfo=$ipinfo.$ REMOTE_ADDR.":".$num.":".$abstime."|";

$fp=@fopen($ipfile,"w") or die("An error occurred".$goback) ;
fwrite($fp,$ipinfo);
fclose($fp);
}

//End of ip judgment







for($i=0;$i<100 && !file_exists($recfile);$i++);
if($i==99) die("System error 00".$goback);


$fp=@fopen($recfile,"r") or die("Sorry it's not legal".$goback);
$info=explode( ">",fread($fp,filesize($recfile)));
fclose($fp);
copy($recfile,$recfile.".bak");
unlink($ recfile);







for($i=0;$i
$items=explode("<",$info[$i]);
if(!trim($items[0])) continue;
if(trim($items[0] )==$num){//Items to be downloaded
if($firstdown)
$items[6]++;
$filepath=$uploadto.$items[2];
$info[$i]=implode("<",$items);                                                      ">",$info);

if(!$fp=fopen($recfile,"w")){
copy($votefile.".bak",$votefile);
die("Error 02".$goback);
}



for($i=0;$i if(trim($info[$i])!="") fputs($fp,trim($info[$i].">"));
}
    fclose($fp);


echo "";
echo "

";
echo "";
echo "

";
echo "


";
echo "

您的浏览器会在三秒钟后自动下载

";
echo "


";
echo "

或者点击此处下载

";
echo "


";
echo "

";

//echo $HTTP_ENV_VARS["PATH_INFO"];
//echo "<script>window.location.href='".$filepath."';window.close();</script>";

echo "";

//header("Content-type: application/.rar");

//header("Content-Disposition: attachment; filename=".$filepath);
//Header("Location: ".$filepath);
//header("Content-Description: PHP3 Generated Data



?>

http://www.bkjia.com/PHPjc/316394.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/316394.htmlTechArticle这是本系统的download.php,主要负责下载和记数，其中文件格式均在注释中说明. html ?php //传入num为要下载的文件号,col=要下载的分栏 //ip不超时...