ArithmeticError

(PHP 7, PHP 8)

Introduction

ArithmeticError est émit quand une erreur se produit lors d'une opération mathématique. Ces erreurs inclus les tentatives de réaliser un bitshift par un montant négatif, n'importe quel appel à intdiv() qui donnerait lieu à une valeur en dehors des bornes possibles d'un entier.

Synopsis de la classe

class ArithmeticError extends Error {

/* Propriétés héritées */

protected string $message = "";

private string $string = "";

protected int $code;

protected string $file = "";

protected int $line;

private array $trace = [];

private ?Throwable $previous = null;

/* Méthodes héritées */

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

final public Error::getMessage(): string

final public Error::getPrevious(): ?Throwable

final public Error::getCode(): int

final public Error::getFile(): string

final public Error::getLine(): int

final public Error::getTrace(): array

final public Error::getTraceAsString(): string

public Error::__toString(): string

private Error::__clone(): void

}

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User Contributed Notes 1 note

down

nima dot shirinzadeh at gmail dot com ¶

4 years ago

the first example shifted by the positive number and the result is 4, but the second example shifted by the negative number and the result is ArithmeticError(this example is the same for left shift)
<?php

 $shif =1;
 $number = 8;
 $result =  $number >> $shif;
 echo $result; //// 1000 >> 01000 = 4

$shif =-1;
 $number = 8;
 $result =  $number >> $shif;
 ////result is ArithmeticError
?>

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