<?php

$trans = Transliterator::create('Any-Upper');
echo $trans->transliterate('äčģfş') . PHP_EOL;

$trans = Transliterator::create('Any-Hex');
echo $trans->transliterate('A');

ÄČĢFŞ
\u0041

• A treeview of the Exceptions and SPL Exceptions
• PHP's DoublyLinkedList
• The class structure of the SPL classes

PHP 8.2, Laminas MVC 3.2, Symfony 5.2, Laravel 8.28, PHPUnit 9.5, Doctrine ORM 2.8