(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.

范例

例子 1. bcadd() example <?php $a = '1.234'; $b = '5'; echo bcadd($a, $b); // 6 echo bcadd($a, $b, 4); // 6.2340 ?>

参见

bcsub().