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(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_div_r — Remainder of the division of numbers
$n
, GMP $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 ( $div ) . "\n" ;
?>
以上例程会输出:
5
[#1] Armando [2006-01-24 10:56:08]
A good function to help to find if a number is odd or pair.
function is_odd($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);
}
}