gmp_add

(PHP 4 >= 4.0.4, PHP 5)

gmp_add — Add numbers

resource gmp_add ( resource $a , resource $b )

Add two numbers.

a

A number that will be added.

It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.

b

A number that will be added.

It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.

A GMP number representing the sum of the arguments.

Example#1 gmp_add() example


<?php
$sum = gmp_add("123456789012345", "76543210987655");
echo gmp_strval($sum) . "\n";
?>

上例将输出：

200000000000000