La clase UnderflowException

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

Introducción

Lanza una excepción cuando se lleva a cabo una operación no válida o un contenedor vacío, tal como eliminar un elemento.

Sinopsis de la Clase

UnderflowException extends RuntimeException {

/* Propiedades heredadas */

protected string $message;

protected int $code;

protected string $file;

protected int $line;

/* Métodos heredados */

public Exception::__construct(string $message = "", int $code = 0, Throwable $previous = null)

final public Exception::getMessage(): string

final public Exception::getPrevious(): Throwable

final public Exception::getCode(): mixed

final public Exception::getFile(): string

final public Exception::getLine(): int

final public Exception::getTrace(): array

final public Exception::getTraceAsString(): string

public Exception::__toString(): string

final private Exception::__clone(): void

}

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User Contributed Notes 1 note

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evguenia dot chagnon at gmail dot com ¶

7 years ago


UnderflowException handles exceptions due to a value being too small to maintain precision, resulting in loss of accuracy. In PHP, this can occurs when using floats:

echo (1-0.9) // 0.1
echo (1-0.99) // 0.01
echo (1-0.999) // 0.001
echo (1-0.9999) // 9.9999999999989E-05
echo (1-0.99999) // 9.9999999999545E-06
echo (1-0.999999) // 1.0000000000288E-06

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