localizablemessage.php

См. документацию.

<?php
 
namespace Bitrix\Main\Localization;
 
use Bitrix\Main\Diag;
use Bitrix\Main\IO\Path;

class LocalizableMessage implements LocalizableMessageInterface
{
    public function __construct(
        protected string  $code,
        protected ?array  $replace = null,
        protected ?string $language = null,

        protected ?string $phraseSrcFile = null,
    )
    {
        if (!isset($this->phraseSrcFile))
        {
            // guess the file that owns the phrase
            $trace = Diag\Helper::getBackTrace(1, DEBUG_BACKTRACE_IGNORE_ARGS);
            $this->phraseSrcFile = Path::normalize($trace[0]['file']);
        }
    }
 
    public function localize(string $language): ?string
    {
        $message = Loc::getMessage($this->code, $this->replace, $language);
 
        if (!isset($message))
        {
            Loc::loadLanguageFile($this->phraseSrcFile, $language, false);
            $message = Loc::getMessage($this->code, $this->replace, $language);
        }
 
        return $message;
    }
 
    public function __toString()
    {
        return $this->localize($this->language ?? Loc::getCurrentLang());
    }
}