avatar.php

<?php
namespace Bitrix\Main\UI\AccessRights;
 
class Avatar
{
    private static $cache = [];
 
    public static function getSrc($avatarId, $width = 58, $height = 58): ?string
    {
        if(empty($avatarId))
        {
            return null;
        }
 
        $avatarId = (int) $avatarId;
        $key = $avatarId . " $width $height";
 
        if (!isset(self::$cache[$key]))
        {
            $src = false;
            if ($avatarId > 0)
            {
 
                $imageFile = \CFile::getFileArray($avatarId);
                if ($imageFile !== false)
                {
 
                    $fileTmp = \CFile::resizeImageGet(
                        $imageFile,
                        array("width" => $width, "height" => $height),
                        BX_RESIZE_IMAGE_EXACT,
                        false
                    );
                    $src = $fileTmp["src"];
                }
 
                self::$cache[$key] = $src;
            }
        }
 
        return self::$cache[$key];
    }
}