gmp_perfect_power

(PHP 7 >= 7.3.0, PHP 8)

gmp_perfect_power — Perfect power check

function gmp_perfect_power(GMP|int|string $num): bool

Checks whether num is a perfect power.

num: A GMP object, an int, or a string that can be interpreted as a number following the same logic as if the string was used in gmp_init() with automatic base detection (i.e. when base is equal to 0).

Returns true if num is a perfect power, false otherwise.