bcpow

Function • Params and return types changed in PHP 8.0

Raise an arbitrary precision number to another.

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

bcpow Function synopsis

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

Parameters

$num

Typestring

The base, as a string.

$exponent

Typestring

The exponent, as a string. Must be a value with no fractional part. The valid range of the exponent is platform specific, but is at least -2147483648 to 2147483647.

$scale

OptionalType?intDefault valuenull

Return value

Typestring

Returns the result as a string.

Changes to the bcpow 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 type added for parameter #3 ($scale): ?int
  • Parameter default value added for position #3 ($scale): null
  bcpow(
-     $x,
+     string $num,
-     $y,
+     string $exponent,
-     $scale
+     ?int $scale = null
-   )
+   ): string

bcpow 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