README

Encode and Decode an XRPL account address and destination tag to/from X-formatted (tagged) address.

Destination tags provide a way for exchanges, payment processors, corporates or entities which accept incoming payments, escrows, checks and similar transcations to use a single receiving wallet while being able to disambiguate incoming transactions by instructing the senders to include a destination tag.

This package allows encoding and decoding from an XRPL address and destination tag to / from 'Tagged Addresses', containing both the destination account address and tag in one string. This way users can simply copy-paste the string, eliminating possible user error when copying / entering a numeric destination tag.

Hopefully all exchanges, wallets & other software using destination tags will implement this address codec. A migration period will be required to allow users to enter both address formats.

The website https://xrpaddress.info is available for users, exchanges and developers to provide some context and best practices.

Install

Install with composer: crypto2/php-xrpl-tagged-address-codec

Use

Encoding

require('./vendor/autoload.php');

$x = new Crypto2\XAddress();
//Main Net - No Tag
$address = $x->Encode('rGWrZyQqhTp9Xu7G5Pkayo7bXjH4k4QYpf', null, false);
//Main Net - With Tag
$address = $x->Encode('rGWrZyQqhTp9Xu7G5Pkayo7bXjH4k4QYpf', 12345, false);
//Test Net - With Tag
$address = $x->Encode('rGWrZyQqhTp9Xu7G5Pkayo7bXjH4k4QYpf', 12345, true);

Decoding

require('./vendor/autoload.php');

$x = new Crypto2\XAddress();
$tmp = $x->Decode('XVLhHMPHU98es4dbozjVtdWzVrDjtV8xvjGQTYPiAx6gwDC');

Return is an array with keys: address, dest_tag, testnet
address: The Ripple address
dest_tag: The Destination Tag or null if one wasn't set in the tag
testnet: true if it is a testnet address, false otherwise

Credits

This readme based on the one for the Java/NPM package at https://github.com/xrp-community/xrpl-tagged-address-codec

This concept is based on the concept from @nbougalis

Big thanks to @sublimator for his fiddles, ideas and fixes and @intelliot for the idea of adding an X / T prefix for (new) address recognizability.