<?php

function usage($argv) {
 echo "Usage:\n";
 printf("\tphp %s <http://example.com/file> <localfile>\n", $argv[0]);
 exit(1);
}

function stream_notification_callback($notification_code, $severity, $message, $message_code, $bytes_transferred, $bytes_max) {
 static $filesize = null;

 switch($notification_code) {
 case STREAM_NOTIFY_RESOLVE:
 case STREAM_NOTIFY_AUTH_REQUIRED:
 case STREAM_NOTIFY_COMPLETED:
 case STREAM_NOTIFY_FAILURE:
 case STREAM_NOTIFY_AUTH_RESULT:
 /* Ignore */
 break;

 case STREAM_NOTIFY_REDIRECTED:
 echo "Being redirected to: ", $message, "\n";
 break;

 case STREAM_NOTIFY_CONNECT:
 echo "Connected...\n";
 break;

 case STREAM_NOTIFY_FILE_SIZE_IS:
 $filesize = $bytes_max;
 echo "Filesize: ", $filesize, "\n";
 break;

 case STREAM_NOTIFY_MIME_TYPE_IS:
 echo "Mime-type: ", $message, "\n";
 break;

 case STREAM_NOTIFY_PROGRESS:
 if ($bytes_transferred > 0) {
 if (!isset($filesize)) {
 printf("\rUnknown filesize.. %2d kb done..", $bytes_transferred/1024);
 } else {
 $length = (int)(($bytes_transferred/$filesize)*100);
 printf("\r[%-100s] %d%% (%2d/%2d kb)", str_repeat("=", $length). ">", $length, ($bytes_transferred/1024), $filesize/1024);
 }
 }
 break;
 }
}

isset($argv[1], $argv[2]) or usage($argv);

if (!isset($_ENV['http_proxy'])) {
 $copt = null;
} else {
 $copt = array(
 'http' => array(
 'proxy' => preg_replace('/^http/i', 'tcp', $_ENV['http_proxy']),
 'request_fulluri' => true,
 ),
 );
}

$ctx = stream_context_create($copt, array("notification" => "stream_notification_callback"));

$fp = fopen($argv[1], "r", false, $ctx);
if (is_resource($fp) && file_put_contents($argv[2], $fp)) {
 echo "\nDone!\n";
 exit(0);
}

$err = error_get_last();
echo "\nError..\n", $err["message"], "\n";
exit(1);