pow

(PHP 4, PHP 5, PHP 7, PHP 8)

pow —Exponential expression

Description

Returnsnum raised to the power ofexponent.

Note:

It is possible to use the** operator instead.

Parameters

num

The base to use

exponent

The exponent

Return Values

num raised to the power ofexponent. If both arguments are non-negative integers and the result can be represented as an integer, the result will be returned withint type, otherwise it will be returned as afloat.

PHP-Extensions may override the behaviour of this operation and make it return an object.

Changelog

Examples

Notes

Note:

This function will convert all input to a number, even non-scalar values, which could lead toweird results.

See Also

• Exponentiation operator**
• fpow() - Raise one number to the power of another, according to IEEE 754
• exp() - Calculates the exponent of e
• sqrt() - Square root
• bcpow() - Raise an arbitrary precision number to another
• gmp_pow() - Raise number into power