bcscale

    (PHP 4, PHP 5, PHP 7, PHP 8)

    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

    VersionDescription
    8.0.0scale is now nullable.
    7.3.0bcscale() 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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