bcpowmod

Function • Params and return types changed in PHP 8.0

Raise an arbitrary precision number to another, reduced by a specified modulus.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6

bcpowmod Function synopsis

bcpowmod(
    string $num,
    string $exponent,
    string $modulus,
    ?int $scale = null
  ): string

Parameters

$num

Typestring

The base, as an integral string (i.e. the scale has to be zero).

$exponent

Typestring

The exponent, as an non-negative, integral string (i.e. the scale has to be zero).

$modulus

Typestring

The modulus, as an integral string (i.e. the scale has to be zero).

$scale

OptionalType?intDefault valuenull

Return value

Typestring

Returns the result as a string.

Changes to the bcpowmod Function

PHP 8.0

  • Return type added: string
  • Parameter name of parameter #1 changed: $x to $num
  • Parameter type added for parameter #1 ($num): string
  • Parameter name of parameter #2 changed: $y to $exponent
  • Parameter type added for parameter #2 ($exponent): string
  • Parameter name of parameter #3 changed: $mod to $modulus
  • Parameter type added for parameter #3 ($modulus): string
  • Parameter type added for parameter #4 ($scale): ?int
  • Parameter default value added for position #4 ($scale): null
  bcpowmod(
-     $x,
+     string $num,
-     $y,
+     string $exponent,
-     $mod,
+     string $modulus,
-     $scale
+     ?int $scale = null
-   )
+   ): string

bcpowmod Function Availability

PHP VersionAvailability
PHP 8.6Upcoming Release Yes
PHP 8.5Supported (Latest) Yes
PHP 8.4Supported Yes
PHP 8.3Security-Fixes Only Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Unsupported Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported Yes
PHP 5.3Unsupported Yes