functions.php
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functions.php
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	<?php

	/*
	* This file is part of the Symfony package.
	*
	* (c) Fabien Potencier <fabien@symfony.com>
	*
	* For the full copyright and license information, please view the LICENSE
	* file that was distributed with this source code.
	*/

	namespace Symfony\Component\String;

	if (!\function_exists(u::class)) {
	function u(?string $string = ''): UnicodeString
	{
	return new UnicodeString($string ?? '');
	}
	}

	if (!\function_exists(b::class)) {
	function b(?string $string = ''): ByteString
	{
	return new ByteString($string ?? '');
	}
	}

	if (!\function_exists(s::class)) {
	/**
	* @return UnicodeString\|ByteString
	*/
	function s(?string $string = ''): AbstractString
	{
	$string ??= '';

	return preg_match('//u', $string) ? new UnicodeString($string) : new ByteString($string);
	}
	}