Просмотр файла down.php

<?php
extract($HTTP_GET_VARS);
extract($HTTP_POST_VARS);
////////////
$time=time();
if (is_file("files$did/$fid")){
$dik=str_replace("/", "", $did);
if (is_file("baze/$dik.baz")){
$fn=file("baze/$dik.baz");
$fp=fopen("baze/$dik.baz","a+");
flock ($fp,LOCK_EX);
ftruncate ($fp,0);
	foreach ($fn as $n=>$f){
		$data = explode("|",$fn[$n]);
		if ($data[0]==$id and $data[11]=="$did/$fid"){$kol=$data[1]+1;
		$zap="$data[0]|$kol|$data[2]|$data[3]|$data[4]|$time|$data[6]|$data[7]|$data[8]|$data[9]|$data[10]|$data[11]|\r\n";
		fputs($fp,"$zap");}
		else{fputs($fp,$fn[$n]);}
		fflush ($fp);
	}
flock ($fp,LOCK_UN);
fclose($fp);
@chmod("$fp", 0666);
}}
header("location: files$did/$fid");
?>