ArithmeticError

(PHP 7, PHP 8)

Introduzione

ArithmeticError is thrown when an error occurs while performing mathematical operations. These errors include attempting to perform a bitshift by a negative amount, and any call to intdiv() that would result in a value outside the possible bounds of an int.

Sommario della classe

class ArithmeticError extends Error {

/* Proprietà ereditate */

protected string $message = "";

private string $string = "";

protected int $code;

protected string $file = "";

protected int $line;

private array $trace = [];

private ?Throwable $previous = null;

/* Metodi ereditati */

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

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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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