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
$num1, GMP|int|string $num2, int $rounding_mode = GMP_ROUND_ZERO): GMP
Calculates remainder of the integer division of
num1 by num2. The
remainder has the sign of the num1 argument,
if not zero.
num1The number being divided.
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. whenbase is equal to 0).
num2
The number that num1 is being divided by.
base is equal to 0).
rounding_mode
See the gmp_div_q() function for description
of the rounding_mode argument.
The remainder, as a GMP number.
Example #1 gmp_div_r() example
<?php
$div = gmp_div_r("105", "20");
echo gmp_strval($div) . "\n";
?>The above example will output:
5