Source code of my YouTube tutorial about handling multiple exceptions with PHP 7.1 - https://www.youtube.com/channel/UCGqLuT0upPiocwYSnnmqt2g

index.php

<?php

require 'Person.php';

try {
    $person = new Person('Pierre');
    echo $person->greeting('morning'); // can be 'morning', 'afternoon', or 'evening'
} catch(InvalidNameException | InvalidDayMomentException $err) { // Handling multiple exceptions with PHP 7.1
    echo $err->getMessage();
}

InvalidDayMomentException.php

<?php

class InvalidDayMomentException extends InvalidArgumentException
{

}

InvalidNameException.php

<?php

class InvalidNameException extends InvalidArgumentException
{

}

Person.php

<?php
/**
 * (c) Pierre-Henry Soria <hi@ph7.me> - All Rights Reserved.
 */

declare(strict_types=1);

require_once 'InvalidNameException.php';
require_once 'InvalidDayMomentException.php';

class Person
{
    private const MIN_NAME_LENGTH = 2;
    private const MAX_NAME_LENGTH = 20;

    private const MORNING = 'morning';
    private const AFTERNOON = 'afternoon';
    private const EVENING = 'evening';

    private const VALID_DAY_MOMENTS = [
        self::MORNING,
        self::AFTERNOON,
        self::EVENING
    ];

    private string $name;

    public function __construct(string $name)
    {
        if (!$this->isNameValid($name)) {
            throw new InvalidNameException(
                sprintf('"%s" name is invalid.', $name)
            );
        }

        $this->name = $name;
    }

    public function greeting($time): string
    {
        if (!$this->isTimeOfTheDayValid($time)) {
            throw new InvalidDayMomentException(
                sprintf('"%s" is an invalid moment of the day.', $time)
            );
        }

        return 'Good ' . $time . ' ' . $this->name . ' ' . $this->getEmoji($time);
    }

    private function isNameValid(string $value): bool
    {
        return strlen($value) > self::MIN_NAME_LENGTH && strlen($value) < self::MAX_NAME_LENGTH;
    }

    private function isTimeOfTheDayValid(string $time): bool
    {
        return in_array($time, self::VALID_DAY_MOMENTS);
    }

    private function getEmoji(string $type): string
    {
        if ($type === self::MORNING) {
            return '☀️';
        }

        if ($type === self::AFTERNOON) {
            return '🕶';
        }

        if ($type === self::EVENING) {
            return '🌝️';
        }

        return '👋'; // Default value
    }
}

The YouTube channel 👉 https://www.youtube.com/channel/UCGqLuT0upPiocwYSnnmqt2g