Script to Download a File in PHP

This script is to download a file from your root directory. This is a very simple and helpful for php developers.

<?php
if (@$_POST['submit'] == 'Download') {
    $file = $_POST['fileName'];
    header("Content-Type: application/x-octet-stream");
    header("Content-Transfer-Encoding: binary");
    header("Content-Disposition: attachment; filename=\"" . $file . "\";" );
    $fh = fopen($file, 'r');
    while (! feof($fh))
    {
        echo(fread($fh, 1024));
    }
    fclose($fh);
} else {
    echo("<html><head><");
        echo("title>Guard your filesystem</title></head>");
    echo("<body><form id=\"myFrom\" action=\"" . $_SERVER['PHP_SELF'] .
        "\" method=\"post\">");
    echo("<div><input type=\"text\" name=\"fileName\" value=\"");
    echo(isset($_REQUEST['fileName']) ? $_REQUEST['fileName'] : '');
    echo("\" />");
    echo("<input type=\"submit\" value=\"Download\" name=\"submit\" /></div>");
    echo("</form></body></html>");
}
?>