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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.

示範 1.bcadd() example

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

See also bcsub().

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BCMath Arbitrary Precision Mathematics Functions | 上一層 | bccomp