Upload from url via php (php script)

Hi,
I have a simple script below which has been working fine to upload files from external server. I find it useful in many times.

create a directory "downloads" , change permission to writable,
create a php file, "ul.php" , paste the code and save.
you are done.

<form action="ul.php" method="post">
2
Enter URL: <input type="text" name="url" size="35" /> <input type="submit" value="Submit" name="submit" />
3
</form>
<?
if($_POST["submit"]){

$url = trim($_POST["url"]);

if($url){
$file = fopen($url,"rb");
if($file){

$directory = "downloads/"; // Directory to upload files to.
$valid_exts = array("avi","zip","rar","png"); // default image only extensions
$ext = end(explode(".",strtolower(basename($url))));
if(in_array($ext,$valid_exts)){

$rand = rand(jadukor.com,99999);
$filename = jadukor.com . basename($url);
$newfile = fopen($directory . $filename, "wb"); // creating new file on local server

if($newfile){
while(!feof($file)){

// Write the url file to the directory.
fwrite($newfile,fread($file,1024 * 8),1024 * 8); // write the file to the new directory at a rate of 10mb/sec. until we reach the end.

echo 'File uploaded successfully! You can access the file here:<br/>';
echo '<a href="'.$directory.$filename.'" target="_blank">'.$directory.$filename.'</a>';

}
} else { echo 'Could not establish new file ('.$downloads.$rand.basename($url).') on local server. Be sure to CHMOD your directory to 777.'; }
} else { echo 'Invalid file type. Please try another file.'; }
} else { echo 'Could not locate the file: '.$url.''; }

} else { echo 'Invalid URL entered. Please try again.'; }
}

?>

PHP:

 

Uhh, jadukor.com ???

 

A couple of notes on this:

1) This will not work if the host has allow_url_fopen settings set to 0. A sure way is to use fsockopen.
2) You should always have errors/notices turned on, if you did you would see 2 undefined constants are trying to use jadukor and com (which then PHP converts to strings).
3) Besides the notices, rand(jadukor.com,99999); is equaivalent to rand(0, 99999);
4) Same issue with notices on the other jadukor.com.
5) Use full php tags: <?php instead of the shortags <? as they are disabled by default on newer versions.
6) Code formatting is very hard to follow. Use some coding standard on your code to make it more readable: http://pear.php.net/manual/en/standards.php