(PHP 7 >= 7.3.0, PHP 8)
gmp_perfect_power — Perfect power check
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).
© 1997–2025 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.gmp-perfect-power.php