gmp_div_q
(PHP 4 >= 4.0.4, PHP 5)
gmp_div_q — Divide numbers
說明
Divides a by b and
returns the integer result.
參數
-
a -
The number being divided.
可以是一個 GMP 數據 resouce，或一個可以轉換為數值的字串。
-
b -
The number that
ais being divided by.可以是一個 GMP 數據 resouce，或一個可以轉換為數值的字串。
-
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.
可以是一個 GMP 數據 resouce，或一個可以轉換為數值的字串。
-
回傳值
GMP 數值資源.
範例
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";
?>
上例將輸出：
20 0 1 0 -1
註釋
Note:
This function can also be called as gmp_div().
參見
- gmp_div_r() - Remainder of the division of numbers
- gmp_div_qr() - Divide numbers and get quotient and remainder
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