Crypt/Math/BigInteger/Bcmath.php
Zend Framework
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- Category
- Zend
- Copyright
- Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
- License
- New BSD License
- Package
- Zend_Crypt
- Subpackage
- Math
- Version
- $Id$
\Zend_Crypt_Math_BigInteger_Bcmath
Package: Zend_CryptSupport for arbitrary precision mathematics in PHP.
Zend_Crypt_Math_BigInteger_Bcmath is a wrapper across the PHP BCMath
extension.
- Implements
- Category
- Zend
- Copyright
- Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
- License
- New BSD License
Methods



add(string $left_operand, string $right_operand) : string
Adds two arbitrary precision numbers
ParametersName | Type | Description |
---|
$left_operand | string | |
---|
$right_operand | string | |
---|
Returns 


compare(string $left_operand, string $right_operand) : int
Compare two big integers and returns result as an integer where 0 means
both are identical, 1 that left_operand is larger, or -1 that
right_operand is larger.
ParametersName | Type | Description |
---|
$left_operand | string | |
---|
$right_operand | string | |
---|
Returns 


divide(string $left_operand, string $right_operand) : string | null
Divide two big integers and return result or NULL if the denominator
is zero.
ParametersName | Type | Description |
---|
$left_operand | string | |
---|
$right_operand | string | |
---|
ReturnsType | Description |
---|
string | null | |



init(string $operand, int $base = 10) : string
Initialise a big integer into an extension specific type. This is not
applicable to BCMath.
ParametersName | Type | Description |
---|
$operand | string | |
---|
$base | int | |
---|
Returns 


modulus(string $left_operand, string $modulus) : string
Get modulus of an arbitrary precision number
ParametersName | Type | Description |
---|
$left_operand | string | |
---|
$modulus | string | |
---|
Returns 


multiply(string $left_operand, string $right_operand) : string
Multiply two arbitrary precision numbers
ParametersName | Type | Description |
---|
$left_operand | string | |
---|
$right_operand | string | |
---|
Returns 


pow(string $left_operand, string $right_operand) : string
Raise an arbitrary precision number to another
ParametersName | Type | Description |
---|
$left_operand | string | |
---|
$right_operand | string | |
---|
Returns 


powmod(string $left_operand, string $right_operand, string $modulus) : string
Raise an arbitrary precision number to another, reduced by a specified
modulus
ParametersName | Type | Description |
---|
$left_operand | string | |
---|
$right_operand | string | |
---|
$modulus | string | |
---|
Returns 


sqrt(string $operand) : string
Get the square root of an arbitrary precision number
ParametersName | Type | Description |
---|
$operand | string | |
---|
Returns 


subtract(string $left_operand, string $right_operand) : string
Subtract one arbitrary precision number from another
ParametersName | Type | Description |
---|
$left_operand | string | |
---|
$right_operand | string | |
---|
Returns