heibai2006/web3.php
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Add toWei and bignumber

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This commit is contained in:
sc0Vu 2017-12-24 20:35:28 +08:00
parent fce712ddcd
commit d58e2e751c
3 changed files with 98 additions and 2 deletions
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3
composer.json
View File

@ -13,7 +13,8 @@
"require": {
"guzzlehttp/guzzle": "~6.0",
"PHP": "^7.1",
"kornrunner/keccak": "dev-master"
"kornrunner/keccak": "dev-master",
"phpseclib/phpseclib": "dev-master"
},
"require-dev": {
"phpunit/phpunit": "~6.0"

67
src/Utils.php
View File

@ -13,6 +13,7 @@ namespace Web3;
use InvalidArgumentException;
use kornrunner\Keccak;
use phpseclib\Math\BigInteger as BigNumber;
class Utils
{
@ -23,6 +24,42 @@ class Utils
*/
const SHA3_NULL_HASH = 'c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470';
/**
* UNITS
* from web3.js
*
* @const array
*/
const UNITS = [
'noether' => '0',
'wei' => '1',
'kwei' => '1000',
'Kwei' => '1000',
'babbage' => '1000',
'femtoether' => '1000',
'mwei' => '1000000',
'Mwei' => '1000000',
'lovelace' => '1000000',
'picoether' => '1000000',
'gwei' => '1000000000',
'Gwei' => '1000000000',
'shannon' => '1000000000',
'nanoether' => '1000000000',
'nano' => '1000000000',
'szabo' => '1000000000000',
'microether' => '1000000000000',
'micro' => '1000000000000',
'finney' => '1000000000000000',
'milliether' => '1000000000000000',
'milli' => '1000000000000000',
'ether' => '1000000000000000000',
'kether' => '1000000000000000000000',
'grand' => '1000000000000000000000',
'mether' => '1000000000000000000000000',
'gether' => '1000000000000000000000000000',
'tether' => '1000000000000000000000000000000'
];
/**
* construct
*
@ -120,4 +157,34 @@ class Utils
}
return '0x' . $hash;
}
/**
* toWei
*
* @param BigNumber|string|int $number
* @param string $unit
* @return string
*/
public static function toWei($number, $unit)
{
if (is_int($number)) {
$bn = new BigNumber($number);
} elseif (is_string($number)) {
if (self::isZeroPrefixed($number)) {
$number = self::stripZero($number);
}
$bn = new BigNumber($number, 16);
} elseif (!$number instanceof BigNumber){
throw new InvalidArgumentException('toWei number must be BigNumber, string or int.');
}
if (!is_string($unit)) {
throw new InvalidArgumentException('toWei unit must be string.');
}
if (!isset(self::UNITS[$unit])) {
throw new InvalidArgumentException('toWei doesn\'t support ' . $unit . ' unit.');
}
$bnt = new BigNumber(self::UNITS[$unit]);
return $bn->multiply($bnt);
}
}

28
test/unit/UtilsTest.php
View File

@ -110,4 +110,32 @@ class UtilsTest extends TestCase
$this->assertEquals(mb_substr($str, 0, 10), '0xcdcd77c0');
}
/**
* testToWei
*
* @return void
*/
public function testToWei()
{
$bn = Utils::toWei('0x1', 'wei');
$this->assertEquals($bn->toString(), '1');
$bn = Utils::toWei('1', 'wei');
$this->assertEquals($bn->toString(), '1');
$bn = Utils::toWei(1, 'wei');
$this->assertEquals($bn->toString(), '1');
$bn = Utils::toWei('1', 'ether');
$this->assertEquals($bn->toString(), '1000000000000000000');
$bn = Utils::toWei('0x5218', 'wei');
$this->assertEquals($bn->toString(), '21016');
}
}