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bccomp BC math

Last updated: Sat, 27 Jan 2007

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# bcadd

(PHP 3, PHP 4, PHP 5)

bcadd -- Add two arbitrary precision numbers

## Description

string bcadd ( string left_operand, string right_operand [, int scale] )

Adds the `left_operand` to the `right_operand` and returns the sum in a string. The optional `scale` parameter is used to set the number of digits after the decimal place in the result.

## Примеры

Пример 1. bcadd() example

`<?php
$a = '1.234';
$b = '5';
echo bcadd($a, $b); // 6
echo bcadd($a, $b, 4); // 6.2340
?>`

## Смотрите также

bcsub().

add a note User Contributed Notes
bcadd
Bo Anders Svensson
23-May-2005 05:25
`Be aware:
$exp1 = "1E5";
$exp2 = "2E4";
$ans1 = bcadd((float)$exp1, (float)$exp2, 3);
$ans2 = bcadd((int)$exp1, (int)$exp2, 3);
$ans3 = bcadd($exp1, $exp2, 3);
echo "1: $exp1 + $exp2 = $ans1\r\n";
echo "2: $exp1 + $exp2 = $ans2\r\n";
echo "3: $exp1 + $exp2 = $ans3\r\n";
1: 1E5 + 2E4 = 120000.000
2: 1E5 + 2E4 = 3.000
3: 1E5 + 2E4 = 0.000`
add a note
bccomp BC math

Last updated: Sat, 27 Jan 2007
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