bcscale

(PHP 4, PHP 5)

bcscale — Set default scale parameter for all bc math functions

说明

bool bcscale ( int $scale )

Sets the default scale parameter for all subsequent bc math functions that do not explicitly specify a scale parameter.

参数

scale: The scale factor.

返回值

如果成功则返回 TRUE，失败则返回 FALSE。

范例

Example#1 bcscale() example


<?php

// default scale : 3
bcscale(3);
echo bcdiv('105', '6.55957'); // 16.007

// this is the same without bcscale()
echo bcdiv('105', '6.55957', 3); // 16.007

?>


	PHP5中文手册 bcpowmod bcsqrt BC math PHP Manual bcscale (PHP 4, PHP 5) bcscale — Set default scale parameter for all bc math functions 说明 bool bcscale ( int `$scale` ) Sets the default scale parameter for all subsequent bc math functions that do not explicitly specify a scale parameter. 参数 `scale` The scale factor. 返回值如果成功则返回 `TRUE`，失败则返回 `FALSE`。范例 Example#1 bcscale() example `<?php // default scale : 3 bcscale(3); echo bcdiv('105', '6.55957'); // 16.007 // this is the same without bcscale() echo bcdiv('105', '6.55957', 3); // 16.007 ?>` bcpowmod bcsqrt BC math PHP Manual