bcadd

(PHP 4, PHP 5, PHP 7, PHP 8)

bcadd — Add two arbitrary precision numbers

Description

bcadd(string $num1, string $num2, ?int $scale = null): string

Sums num1 and num2.

Parameters

num1

The left operand, as a string.

num2

The right operand, as a string.

scale
This parameter is used to set the number of digits after the decimal place in the result. If null, it will default to the default scale set with bcscale(), or fallback to the value of the bcmath.scale INI directive.

Return Values

The sum of the two operands, as a string.

Errors/Exceptions

This function throws a ValueError in the following cases:

  • num1 or num2 is not a well-formed BCMath numeric string.
  • scale is outside the valid range.

Changelog

VersionDescription
8.0.0scale is now nullable.

Examples

Example #1 bcadd() example

<?php

$a = '1.234';
$b = '5';

echo bcadd($a, $b); // 6
echo bcadd($a, $b, 4); // 6.2340

?>

See Also