<?php
// URL.PHP

if($_POST["submit"]){

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

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

$valid_exts = array("jpg","jpeg","gif","png"); // default image only extensions
$ext = end(explode(".",strtolower(basename($url))));
if(in_array($ext,$valid_exts)){

$rand = rand(10000,99999);
$newfile = fopen("./images/" . $rand . basename($url), "wb"); // replace "downloads" with whatever directory you wish.

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 8kb/sec. until we reach the end.

}
}
}
}

}
}
{
 	echo "$url";
 }
?>