header('Content-Type: text/html; charset= gb2312');
$txt1 = stripslashes(trim( @$_POST['text1']));
$button = @$_POST['button'];
$down = @trim($ _GET['down']);
if ($down==1) {
header("Content-type: command");
header("Content-Disposition: attachment; filename=base64_decode. txt");
$contents = file_get_contents(basename($_SERVER['PHP_SELF']));
echo $contents;
exit;
}
?>
< ;html xmlns="http://www.w3.org/1999/xhtml">









< ;td height="20" bgcolor="#CCCCCC" align =right style="padding-right:5px;">

Base64 online encoding and decoding gb2312 Source code download Please enter the converted address: <?php echo htmlspecialchars($txt1,ENT_QUOTES);?> Please select conversion The way: <?php <BR>if($button=="Encoding") echo base64_encode($ txt1); <BR>if($button=="Decode") echo mb_convert_encoding(base64_decode($txt1),"gb2312","UTF-8"); <BR>?> <br>