Multi-user file free upload voting system without database (3)_PHP tutorial

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Release： 2016-07-21 16:02:30

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这是本系统的第四个文件.upload.php主要负责，文件名的校验
,上传文件和文件地址的归档

文件上传

//上传的栏目$col,$upfile上传的文件,$writer作者,$intro简介

$writer=substr(htmlspecialchars($writer),0,20);
$intro=substr(htmlspecialchars($intro),0,100);

$maxsize=512000*2;//最大的文件长度
$pathtemp=explode("/",$HTTP_ENV_VARS["PATH_INFO"]);
$pathtemp[sizeof($pathtemp)-1]="";
$cgiroot="http://".$HTTP_HOST.implode("/",$pathtemp);//主机加当前目录

//$cgiroot="http://eccct.51.net/cgi-bin/";
$uploadto="../uploadfile/".$col."/";//上传到的子目录

$goback="

系统将在3秒后返回....<script>setTimeout('location.href="view.php?col=".$col.""',3000)</script>";

set_time_limit(300);//可持续五分钟

//if(!is_dir($uploadto)) mkdir($uploadto,0755);

if($upfile_size>$maxsize)
die("

对不起,您要上传的文件太大了,超过了1MB

".$goback);

$filename=$upfile_name;
$i=0;
while(file_exists($uploadto.$filename)){
$i++;

$filesp=explode('.',trim($upfile_name));
//echo $filesp[sizeof($filesp)-1];
//echo $filesp[sizeof($filesp)-1]!="zip";
//echo $filesp[sizeof($filesp)-1]!="rar";

if((trim($filesp[sizeof($filesp)-1])!="zip") && (trim($filesp[sizeof($filesp)-1])!="rar")){

die("

上传文件的后缀名必须是zip或rar(小写)

".$goback);

}

$filename=$filesp[0].$i.".".$filesp[1];

}

if ($i>0)
echo ("对不起,您要上传的文件名已经存在了,
系统自动将其更名为".$filename."");

//检查合理性结束

if(!copy($upfile,$uploadto.$filename)) die("

系统出现错误03，请将文件重传

".$goback);

//写文件列表
$fileurl=$uploadto.$filename;//文件url
$flists=$uploadto.$col.".lst";//文件列表位置

for($i=0;$i<100 && !file_exists($flists);$i++);
if($i==99) {
unlink($uploadto.$filename);
die("系统出错00".$goback);
}

copy($flists,$flists.".bak");
if(!$fp=fopen($flists,"r")){
unlink($uploadto.$filename);
die("出错01".$goback);
}
$filerc=explode(">",fread($fp,filesize($flists)));//上传的档案资料
fclose($fp);

unlink($flists);

$firstrec=explode("<",$filerc[0]);

if(!$firstrec[0]) $id=1;
else $id=$firstrec[0]+1;

$oldinfo=implode(">",$filerc);

$newinfo=$id."<".$writer."<".$filename."<0<".$intro."<".$upfile_size."<0>".$oldinfo;
//编号<作者<文件位置<投票计数<简介<文件大小<文件下载次数

if(!$fp=fopen($flists,"w")){
unlink($uploadto.$filename);
copy($flists.".bak",$flists);
die("出错02".$goback);
}

fwrite($fp,trim($newinfo));

fclose($fp);

//写文件列表结束

//文件传送

echo "

传送成功

";

echo "文件在".$cgiroot.$fileurl.".$goback";
//文件传送成功

?>

This is the last article of this article, which mainly introduces how to use the system. Let us use an example to illustrate:

For example, if we want to upload flash works for voting, we only need to create a flash subdirectory under the ../uploadfile/ (relative to the location of the system php file) subdirectory, and create the following files in it: flash.if (record display title that appears), flash.ip (voting IP record), flash.ipd (download IP record), flash.lst (download file information record). Then use view.php?col=flash to use the system. If To add a new column/user to upload PHP works, just create another subdirectory PHP and corresponding files under ../uploadfile/, and use view.php?col=php.