bcscale
(PHP 4, PHP 5, PHP 7)
bcscale — Set or get default scale parameter for all bc math functions
Description
bcscale ( int $scale ) : int
Sets the default scale parameter for all subsequent calls to bc math functions that do not explicitly specify a scale parameter.
bcscale ([ null $scale = null ] ) : int
Gets the current scale factor.
Parameters
-
scale -
The scale factor.
Return Values
Returns the old scale when used as setter. Otherwise the current scale is returned.
Changelog
| Version | Description |
|---|---|
| 8.0.0 | scale is now nullable. |
| 7.3.0 | bcscale() can now be used to get the current scale factor; when used as setter, it now returns the old scale value. Formerly, scale was mandatory, and bcscale() always returned true. |
Examples
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
?>
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https://www.php.net/manual/en/function.bcscale.php