(PHP 4 >= 4.0.4, PHP 5)
gmp_div_r — Remainder of the division of numbers
$n
, resource $d
[, int $round = GMP_ROUND_ZERO
] )
Calculates remainder of the integer division of
n by d. The
remainder has the sign of the n argument,
if not zero.
n
The number being divided.
可以是一个 GMP 数据 resouce，或一个可以转换为数值的字符串。
d
The number that n is being divided by.
可以是一个 GMP 数据 resouce，或一个可以转换为数值的字符串。
round
See the gmp_div_q() function for description
of the round 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";
?>
以上例程会输出：
5
Armando (2006-01-24 10:56:08)
A good function to help to find if a number is odd or pair.
function is_odd($tmpnumber){
if ($tmpnumber < '0') $tmpnumber = gmp_mod($tmpnumber);
if ($tmpnumber == '0') return(false);
elseif ($tmpnumber == '1') return(true);
elseif ($tmpnumber > '1'){
if (gmp_div_q($tmpnumber,'2') != '0') return(true);
else return(false);
}
}