rlp
Recursive Length Prefix Encoding in PHP.
Install
Set minimum stability to dev
composer require web3p/rlp
Usage
RLP encode:
use Web3p\RLP\RLP;
$rlp = new RLP;
// c483646f67
$encoded = $rlp->encode(['dog']);
// 83646f67
$encoded = $rlp->encode('dog');RLP decode:
use Web3p\RLP\RLP;
use Web3p\RLP\Types\Str;
$rlp = new RLP;
$encoded = $rlp->encode(['dog']);
// only accept 0x prefixed hex string
$decoded = $rlp->decode('0x' . $encoded);
// show 646f67
echo $decoded[0];
// show dog
echo hex2bin($decoded[0]);
// or you can
echo Str::decodeHex($decoded[0]);API
Web3p\RLP\RLP
encode
Returns recursive length prefix encoding of given inputs.
encode(mixed $inputs)
Mixed inputs - array of string, integer or numeric string.
Note: output is not zero prefixed.
Example
- Encode array of string.
use Web3p\RLP\RLP;
$rlp = new RLP;
$encoded = $rlp->encode(['web3p', 'ethereum', 'solidity']);decode
Returns array recursive length prefix decoding of given data.
decode(string $input)
String input - recursive length prefix encoded string.
Note: output is not zero prefixed.
Example
- Decode recursive length prefix encoded string.
use Web3p\RLP\RLP;
use Web3p\RLP\Types\Str;
$rlp = new RLP;
$encoded = $rlp->encode(['web3p', 'ethereum', 'solidity']);
$decoded = $rlp->decode('0x' . $encoded);
// echo web3p
echo hex2bin($decoded[0]);
// echo ethereum
echo hex2bin($decoded[1]);
// echo solidity
echo hex2bin($decoded[2]);
// or you can
echo Str::decodeHex($decoded[0]);
echo Str::decodeHex($decoded[1]);
echo Str::decodeHex($decoded[2]);License
MIT