(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
gmp_add — Add numbers
num1The first summand (augent).
A GMP object, an int,
or a string that can be interpreted as a number following the same logic
as if the string was used in gmp_init() with automatic
base detection (i.e. when base is equal to 0).
num2The second summand (addend).
A GMP object, an int,
or a string that can be interpreted as a number following the same logic
as if the string was used in gmp_init() with automatic
base detection (i.e. when base is equal to 0).
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";
?>The above example will output:
200000000000000