BC Math Функцииbcsub
(PHP 4, PHP 5)
bcsub — Subtract one arbitrary precision number from another
Описание
string bcsub
( string $left_operand
, string $right_operand
[, int $scale
] )
Subtracts the right_operand from the left_operand .
Список параметров
- left_operand
-
The left operand, as a string.
- right_operand
-
The right operand, as a string.
- scale
-
This optional parameter is used to set the number of digits after the decimal place in the result. You can also set the global default scale for all functions by using bcscale().
Возвращаемые значения
The result of the substraction, as a string.
Примеры
Пример #1 bcsub() example
<?php
$a = '1.234';
$b = '5';
echo bcsub($a, $b); // -3
echo bcsub($a, $b, 4); // -3.7660
?>
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