EC
ArithmeticError
PHPERRORCommonMath

Base class for arithmetic errors

Quick Answer

Catch ArithmeticError as a base class to handle both DivisionByZeroError and any future arithmetic errors.

What this means

Base class for DivisionByZeroError and any arithmetic-related errors. Catch this if you want to handle all arithmetic failures in one handler.

Why it happens
  1. 1Caused by subclasses — typically DivisionByZeroError
  2. 2intdiv() called with PHP_INT_MIN and -1

Fix

Catch base class

Catch base class
try {
    $r = intdiv($a, $b);
} catch (\ArithmeticError $e) {
    // catches DivisionByZeroError too
    $r = 0;
}

Why this works

ArithmeticError is the base class, so catching it handles all arithmetic subclasses.

Code examples
intdiv overflowphp
intdiv(PHP_INT_MIN, -1); // ArithmeticError on 64-bit

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