PHP5中文手册·Multiply two arbitrary precision number -- 追寻梦想＞编程乐园＞PHP 编程

string bcmul ( string $left_operand , string $right_operand [, int $scale ] )

Multiply the left_operand by the right_operand .

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().

Returns the result as a string.

Example#1 bcmul() example


<?php
echo bcmul('1.34747474747', '35', 3); // 47.161
echo bcmul('2', '4'); // 8
?>


	PHP5中文手册 bcmod bcpow BC math PHP Manual bcmul (PHP 4, PHP 5) bcmul — Multiply two arbitrary precision number 说明 string bcmul ( string `$left_operand` , string `$right_operand` [, int `$scale` ] ) Multiply the `left_operand` by the `right_operand` . 参数 `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(). 返回值 Returns the result as a string. 范例 Example#1 bcmul() example `<?php echo bcmul('1.34747474747', '35', 3); // 47.161 echo bcmul('2', '4'); // 8 ?>` 参见 bcdiv() bcmod bcpow BC math PHP Manual