php-txt操作

生成txt代码笔记
$filename = "文件名.txt";
$encoded_filename = urlencode($filename);
$encoded_filename = str_replace("+", "%20", $encoded_filename);

//多浏览器兼容
header("Content-Type: application/octet-stream");
header ( "Content-type:text/plain" );
if (preg_match("/MSIE/", $_SERVER['HTTP_USER_AGENT']) ) {
    header('Content-Disposition:  attachment; filename="' . $encoded_filename . '"');

} elseif (preg_match("/Firefox/", $_SERVER['HTTP_USER_AGENT'])) {
    header('Content-Disposition: attachment; filename*="utf8' .  $filename . '"');
} else {
    header('Content-Disposition: attachment; filename="' .  $filename . '"');
}
//直接输出
echo "\r\n";//换行