ArithmeticError

(PHP 7, PHP 8)

简介

ArithmeticError 当执行数学运算时发生错误时被抛出。PHP 7.0 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 integer.

类摘要

ArithmeticError extends Error {

/* 继承的属性 */

protected string $message;

protected int $code;

protected string $file;

protected int $line;

/* 继承的方法 */

final public Error::getMessage(): string

final public Error::getPrevious(): Throwable

final public Error::getCode(): mixed

final public Error::getFile(): string

final public Error::getLine(): int

final public Error::getTrace(): array

final public Error::getTraceAsString(): string

public Error::__toString(): string

final private Error::__clone(): void

}

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User Contributed Notes 1 note

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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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