- base64_decode: documentation ( source)
- json_encode: documentation ( source)
<?php
$defaultdata = array( "showpassword"=>"no", "bgcolor"=>"#FFFFFF");
$text = json_encode($defaultdata);
$key = base64_decode('ClVLIh4ASCsCBE8lAxMacFMZV2hdVVotEhhUJQNVAmhSMX4MNzF%2BaAw');
$outText = '';
for($i=0;$i<strlen($text);$i++) {
$outText .= $text[$i] ^ $key[$i % strlen($key)];
}
echo $outText;
?>