The original author Bluestyle hints to improve the place there
The previous algorithm is to wait for the file download before the calculation,
Now this is a direct calculation of the size of the file when it gets
A fault tolerant statement is added
Added a judgment directory, no directory created automatically
The algorithm for calculating the size of the file is changed
The previous light calculation file size is 7 lines of code,
Now, this is just two lines.
Reprint please retain the original author copyright information, because the author is a government personnel, in order not to cause trouble, please retain this paragraph of text integrity
HTML code:
Copy Code code as follows:
<! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 transitional//en" >
<HTML>
<meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 "/>
<title> Happy Flying Blog-remote file download </title>
<body >
<form method= "POST" >
<li>file: <input name= "url" size= "/>"
<input name= "Submit" type= "Submit"/></li>
<li>pass: <input name= "password" type= "password"/></li>
</form>
PHP Code:
Copy Code code as follows:
<?php
# Copyright 2010 Happy Flying
# http://www.klfy.org/for Beginners to learn the reference
Set_time_limit (0); No Limit 24 * 60 * 60
$password = ' admin '; Manage passwords
$pass = $_post[' password '];
if ($pass = = $password) {
Class Runtime {
var $StartTime = 0;
var $StopTime = 0;
function Get_microtime () {list ($usec, $sec) = Explode (", microtime ());
Return ((float) $usec + (float) $sec);}
function Start () {$this->starttime = $this->get_microtime ();}
function Stop () {$this->stoptime = $this->get_microtime ();}
function spent () {return round ($this->stoptime-$this->starttime) * 1000, 1);}
}
$runtime = new Runtime;
$runtime->start ();
if (!isset ($_post[' submit ')) Die ();
$destination _folder = './download/'; Download the file to save the directory. Must end with slash
if (!is_dir ($destination _folder))//To determine whether the directory exists
mkdir ($destination _folder,0777); If none is created, and gives 777 permissions Windows ignores
$url = $_post[' url '];
$headers = Get_headers ($url, 1); Get File size
if ((!array_key_exists ("Content-length", $headers)) {$filesize = 0;}
$newfname = $destination _folder. BaseName ($url);
$file = fopen ($url, "RB");
if ($file) {
$NEWF = fopen ($newfname, "WB");
if ($NEWF)
while (!feof ($file)) {fwrite ($NEWF, Fread ($file, 1024 * 8), 1024 * 8);
}
if ($file) {fclose ($file);}
if ($NEWF) {fclose ($NEWF);}
$runtime->stop ();
echo ' <br/><li> download time consuming: <font color= ' Blue ' > '. $runtime->spent (). ' </font> microseconds, file size <font Color= "Blue" > '. $headers ["Content-length"]. ' </font> bytes </li> ';
Echo ' <br/><li><font color= "Red" > Download success! '. $showtime =date ("y-m-d h:i:s"). ' </font></li> ';
}elseif (isset ($_post[' password ')) {
Echo ' <br/><li><font color= ' red ' > Password error! Please enter a new password!</font></li> ';
}
?>
</body>
