ArithmeticError

(PHP 7, PHP 8)

Introduction

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.

Class synopsis

class ArithmeticError extends Error {

/* Inherited properties */

protected string $message = "";

private string $string = "";

protected int $code;

protected string $file = "";

protected int $line;

private array $trace = [];

private ?Throwable $previous = null;

/* Inherited methods */

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

final public function Error::getMessage(): string

final public function Error::getPrevious(): ?Throwable

final public function Error::getCode(): int

final public function Error::getFile(): string

final public function Error::getLine(): int

final public function Error::getTrace(): array

final public function Error::getTraceAsString(): string

public function Error::__toString(): string

private function Error::__clone(): void

}

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User Contributed Notes 1 note

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-1

nima dot shirinzadeh at gmail dot com ¶

5 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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