it is basically an alias gmp_mod.
(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
gmp_div_r — Remainder of the division of numbers
Calculates remainder of the integer division of
num1 by num2. The
remainder has the sign of the num1 argument,
if not zero.
The remainder, as a GMP number.
示例 #1 gmp_div_r() example
<?php
$div = gmp_div_r("105", "20");
echo gmp_strval($div) . "\n";
?>以上示例会输出：
5