bcscale

Set default scale parameter for all bc math functions (PHP 3, PHP 4, PHP 5)
bool bcscale ( int scale )

This function sets the default scale parameter for all subsequent bc math functions that do not explicitly specify a scale parameter. 如果成功则返回 TRUE，失败则返回 FALSE。

范例

例 316. bcscale() example

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<?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

?>