文字
gmp_div_q
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_div_q — Divide numbers
说明
GMP gmp_div_q
( GMP
$a
, GMP $b
[, int $round = GMP_ROUND_ZERO
] )
Divides a by b and
returns the integer result.
参数
-
a -
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。
-
b -
The number that
ais 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 -
The result rounding is defined by the
round, which can have the following values:-
GMP_ROUND_ZERO: The result is truncated towards 0. -
GMP_ROUND_PLUSINF: The result is rounded towards +infinity. -
GMP_ROUND_MINUSINF: The result is rounded towards -infinity.
可以是一个 GMP 数据 resouce ，或一个可以转换为数值的字符串。
-
返回值
GMP 数值 资源 .
范例
Example #1 gmp_div_q() example
<?php
$div1 = gmp_div_q ( "100" , "5" );
echo gmp_strval ( $div1 ) . "\n" ;
$div2 = gmp_div_q ( "1" , "3" );
echo gmp_strval ( $div2 ) . "\n" ;
$div3 = gmp_div_q ( "1" , "3" , GMP_ROUND_PLUSINF );
echo gmp_strval ( $div3 ) . "\n" ;
$div4 = gmp_div_q ( "-1" , "4" , GMP_ROUND_PLUSINF );
echo gmp_strval ( $div4 ) . "\n" ;
$div5 = gmp_div_q ( "-1" , "4" , GMP_ROUND_MINUSINF );
echo gmp_strval ( $div5 ) . "\n" ;
?> 以上例程会输出：
20 0 1 0 -1
注释
Note:
This function can also be called as gmp_div() .
参见
- gmp_div_r() - Remainder of the division of numbers
- gmp_div_qr() - Divide numbers and get quotient and remainder