bcscale
PHP function
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(PHP 4, PHP 5, PHP 7, PHP 8)
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
scaleThe scale factor.
Return Values
Returns the old scale when used as setter. Otherwise the current scale is returned.
Errors/Exceptions
This function throws a ValueError if scale is outside the valid range.
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
bcscale() example
php
<?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
?>