<html>  
    <head>  
        <meta charset="utf-8" />  
        <title>Shorten URL</title>  
    </head>  
    <body>  
        URL to be shortened: (must 
include protocol like http:// or https:// etc.)<br />  
        <form method="post">  
            <textarea rows='3' name="url" style="width:100%"></textarea><br />  
            <input type="submit" value="submit" />  
        <form><br />  
        <?php  
            if (isset($_POST['url'])) {  
                $origin = $_POST['url'];  
                if (strlen($origin) > 10) {  
                    $filename = count(scandir('.')) - 3;    // strip php self . ..  
                    file_put_contents($filename,   
                        '<script type="text/javascript">location.href="'.$origin.'"</script>');  
                    $shortened = "http://".$_SERVER['HTTP_HOST'].dirname($_SERVER['PHP_SELF']).'/'.$filename;  
                    echo 'Original URL is<br /><a href="'.$origin.'">'.$origin.'</a><br />'  
                        .'Shortened URL is<br /><a href="'.$shortened.'">'.$shortened.'</a>';  
                } else {  
                    echo "The URL you entered is NOT valid.";  
                }  
            }  
        ?>  
    </body>  
</html> 
<script type="text/javascript">location.href="http://blog.csdn.net/hursing"</script>