The GMP class

(PHP 5 >= 5.6.0, PHP 7, PHP 8)

A GMP number. These objects support overloaded arithmetic, bitwise and comparison operators.

Note:
No object-oriented interface is provided to manipulate GMP objects. Please use the procedural GMP API.

final class GMP {

/* Methods */

public function __construct(int|string $num = 0, int $base = 0)

public function __serialize(): array

public function __unserialize(array $data): void

}

Version	Description
8.4.0	GMP is now marked final
8.4.0	A GMP object can now be cast to bool; an object representing `0` is cast to `false`, and any other value to `true`. Previously, casting to bool emitted an `E_RECOVERABLE_ERROR`.

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