bcmod
Except that with xpheas method, you lose all the benefits of arbitrary precision as the * operator only works on int and float and those are restricted in length (See int ant float types for more information).
bcmul
(PHP 4, PHP 5)
bcmul — Multiply two arbitrary precision number
Descrierea
string bcmul
( string $left_operand
, string $right_operand
[, int $scale
] )
Multiply the left_operand by the right_operand .
Parametri
- left_operand
-
The left operand, as a string.
- right_operand
-
The right operand, as a string.
- scale
-
Acest parametru opţional este utilizat pentru a stabili numărul cifrelor după virgulă din rezultat. De asemenea puteţi să stabiliţi parametrul global scale pentru toate funcţiile utilizând bcscale().
Valorile întroarse
Returns the result as a string.
Exemple
Example #1 bcmul() example
<?php
echo bcmul('1.34747474747', '35', 3); // 47.161
echo bcmul('2', '4'); // 8
?>
add a note
User Contributed Notesbcmul
ju(...)
02-Apr-2008 01:00
02-Apr-2008 01:00
xpheas (at) gmail . com
14-Jun-2007 08:13
14-Jun-2007 08:13
if you have compiled php width "--disable-bcmath", you can use this:
<?php
function bcmul($_ro, $_lo, $_scale=0)
{
return round($_ro*$_lo, $_scale);
}
?>