Php/docs/function.gmp-com
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gmp_com
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_com — Calculates one's complement
Parameters
a- Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.
Return Values
Returns the one's complement of a, as a GMP number.
Examples
Example #1 gmp_com() example
<?php$com = gmp_com("1234");echo gmp_strval($com) . "\n";?>
The above example will output:
-1235
