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NumericToolsPHP

创建一个简单的项目来处理PHP中的大数值运算！

就像您通常进行的普通数值运算一样，但支持任何大小的数字。

<?php

$integerNumber = Integer::createByInt(1);

$smallNumber = Integer::createByString('1');
$largeNumber = Integer::createByString('987654321234567898765432123456789');

// A really large number that as primitive type might throw a number in scientific notation or infinity.
$reallyLargeNumber = Integer::createByString('12345678987654321234567898765432123456789876543212345678987654321234567898765432123456789876543212345678987654321234567898765432123456789876543212345678987654321234567898765432123456789876543212345678987654321234567898765432123456789876543212345678987654321234567898765432123456789876543212345678987654321234567898765432123456789876543212345678987654321234567898765432123456789876543212345678987654321234567898765432123456789876543212345678987654321234567898765432123456789876543212345678987654321');

当前支持的运算

加法

<?php

$a = Integer::createByString('1234567898765432123456789876543212345678987654321');
$b = Integer::createByString('987654321234567898765432123456789');

// $c = 1234567898765433111111111111111111111111111111110
$c = $a->add($b);

减法

<?php

$a = Integer::createByString('1234567898765432123456789876543212345678987654321');
$b = Integer::createByString('987654321234567898765432123456789');

// $c = 1234567898765431135802468641975313580246864197532
$c = $a->subtract($b);

$a = Integer::createByString('987654321234567898765432123456789');
$b = Integer::createByString('1234567898765432123456789876543212345678987654321');

// $c = -1234567898765431135802468641975313580246864197532
$c = $a->subtract($b);

乘法

<?php

$a = Integer::createByString('999999999999');
$b = Integer::createByString('789');

// $c = 788999999999211
$c = $a->multiplyBy($b);

$a = Integer::createByString('1234567898765432123456789876543212345678987654321');
$b = Integer::createByString('987654321234567898765432123456789');

// $c = 1219326320073159600060966114921506736777910409998442005792202408166072245112635269
$c = $a->multiplyBy($b);

除法

<?php

$dividend = Integer::createByString('987654321234567898765432123456789');
$divisor = Integer::createByString('12345678987654321');

// $quotient = 80000000180000000
$quotient = $dividend->divideBy($divisor);

取模

<?php

$dividend = Integer::createByString("1234567890123456789");
$divisor = Integer::createByString("9876543210");

// $module = 8626543209
$module = $dividend->mod($divisor);

大于

<?php

$a = Integer::createByString("123456789012345678901234567890");
$b = Integer::createByString("987654321");

// true
$comparison = $a->greaterThan($b);

$a = Integer::createByString("987654321");
$b = Integer::createByString("123456789012345678901234567890");

// false
$comparison = $a->greaterThan($b);

大于等于

<?php

$a = Integer::createByString("1500");
$b = Integer::createByString("1492");

// true
$comparison = $a->greaterOrEqualTo($b);

$a = Integer::createByString("1234567890");
$b = Integer::createByString("1234567890");

// true
$comparison = $a->greaterOrEqualTo($b);

$a = Integer::createByString("1234");
$b = Integer::createByString("1234567890");

// false
$comparison = $a->greaterOrEqualTo($b);