JuniorTheoryCommon

What happens when you run this program?

PHP

<?php

function safeDiv(int $a, int $b): string
{
    try {
        return (string) intdiv($a, $b);
    } catch (Exception $e) {
        return 'caught';
    }
}

echo safeDiv(6, 3), ' ', safeDiv(1, 0), "\n";

2, then an uncaught DivisionByZeroError: catch (Exception) misses an Error

Expecting catch (Exception $e) to catch a DivisionByZeroError: it extends Error, a separate branch of Throwable, so catch (Error $e) and catch (Throwable $e) stop it.
Expecting division by zero to print a Warning and go on: since PHP 8 both / and intdiv throw a DivisionByZeroError when the divisor is 0.

Which catch would stop this error, and where in a program does it belong?
What would safeDiv(1, 0) return if the function used fdiv instead of intdiv?

Back to questions Open topic in roadmap →Answer it yourself — Quiz

Back to questions

JuniorTheoryCommon

What happens when you run this program?

PHP

<?php

function safeDiv(int $a, int $b): string
{
    try {
        return (string) intdiv($a, $b);
    } catch (Exception $e) {
        return 'caught';
    }
}

echo safeDiv(6, 3), ' ', safeDiv(1, 0), "\n";

2, then an uncaught DivisionByZeroError: catch (Exception) misses an Error

Expecting catch (Exception $e) to catch a DivisionByZeroError: it extends Error, a separate branch of Throwable, so catch (Error $e) and catch (Throwable $e) stop it.
Expecting division by zero to print a Warning and go on: since PHP 8 both / and intdiv throw a DivisionByZeroError when the divisor is 0.

Which catch would stop this error, and where in a program does it belong?
What would safeDiv(1, 0) return if the function used fdiv instead of intdiv?

Back to questions Open topic in roadmap →Answer it yourself — Quiz