bcmul
bcmul
(PHP 4, PHP 5, PHP 7)
bcmul — Multiply two arbitrary precision numbers
Description
string bcmul ( string $left_operand , string $right_operand [, int $scale = 0 ] )
Multiply the left_operand by the right_operand.
Parameters
left_operand
The left operand, as a string.
right_operand
The right operand, as a string.
`scale`
This optional parameter is used to set the number of digits after the decimal place in the result. If omitted, it will default to the scale set globally with the bcscale() function, or fallback to 0 if this has not been set.
Return Values
Returns the result as a string.
Changelog
| Version | Description |
|---|---|
| 7.3.0 | bcmul() now returns numbers with the requested scale. Formerly, the returned numbers may have omitted trailing decimal zeroes. |
Examples
Example #1 bcmul() example
<?php
echo bcmul('1.34747474747', '35', 3 // 47.161
echo bcmul('2', '4' // 8
?>
Notes
Note: Before PHP 7.3.0 bcmul() may return a result with fewer digits after the decimal point than the scale parameter would indicate. This only occurs when the result doesn't require all of the precision allowed by the scale. For example: Example #2 bcpow() scale example <?php echo bcmul('5', '2', 2 // prints "10", not "10.00" ?>
See Also
- bcdiv() - Divide two arbitrary precision numbers
← bcmod
bcpow →
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Licensed under the Creative Commons Attribution License v3.0 or later.
