gmp_strvalgmp_sub
(PHP 4 >= 4.0.4, PHP 5)
gmp_sub — Subtract numbers
Description
resource gmp_sub
( resource
$a
, resource $b
)
Subtracts b from a
and returns the result.
Parameters
-
a -
The number being subtracted from.
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 -
The number subtracted from
a.It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
Return Values
A GMP number resource.
Examples
Example #1 gmp_sub() example
<?php
$sub = gmp_sub("281474976710656", "4294967296"); // 2^48 - 2^32
echo gmp_strval($sub) . "\n";
?>
The above example will output:
281470681743360
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