<?php
if ( isset( $_GET['url'] ) && ( strlen( $_GET['url'] ) > 3 ) )
{
    $c = curl_init( $_GET['url'] );
    curl_setopt( $c, CURLOPT_RETURNTRANSFER, true );
    $image = curl_exec( $c );
    header('Content-type:image/jpg');
    echo $image;
    exit;
}