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 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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    1
    nima dot shirinzadeh at gmail dot com
    3 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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