bcadd

Add two arbitrary precision numbers (PHP 3, PHP 4, PHP 5)
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.

范例

例 310. bcadd() example

<?php

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

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

?>

参见

bcsub().