attach.php

См. документацию.

<?php
 
 
namespace Bitrix\Calendar\ICal\Builder;
 
 
use Bitrix\Calendar\SerializeObject;
use Serializable;
 
class Attach implements Serializable
{
    use SerializeObject;
    private $link;
    private $name;
    private $size;

    public static function createInstance(string $link, string $name, int $size): Attach
    {
        return new self($link, $name, $size);
    }

    public function __construct(string $link, string $name,  int $size)
    {
        $this->link = $link;
        $this->name = $name;
        $this->size = $size;
    }

    public function getName(): string
    {
        return $this->name;
    }

    public function getLink(): string
    {
        return $this->link;
    }

    public function getSize(): int
    {
        return $this->size;
    }
 
    public function getFormatSize($precision = 2): string
    {
        $suffix = array('b', 'Kb', 'Mb', 'Gb', 'Tb');
        $pos = 0;
        $size = $this->size;
        while($size >= 1024 && $pos < 4)
        {
            $size /= 1024;
            $pos++;
        }
 
        return round($size, $precision) . ' ' . $suffix[$pos];
    }
}