Bitrix. Iblock. Скрипт для уменьшения картинок в PREVIEW_PICTURE

image.php

<?php
namespace Grizzly;
use Bitrix\Main\Loader;

/*
$param = array(
    'id' => 38,
    'width' => 1200,
    'height' => 999999,
    'resize' => 'DETAIL_PICTURE'
);
*/

class Images {

    public $param;

    public function __construct($param = array()) {
        Loader::includeModule('iblock');
        if ( empty($param) ) return;
        $this->setParam($param);
    }

    public function setParam($param)
    {
        $this->param = $param;
    }

    public function getParam()
    {
       return $this->param;
    }

    public function resize($pic)
    {
        $image = \CFile::GetFileArray($pic);
        $param = $this->getParam();

        $image_src = $_SERVER['DOCUMENT_ROOT'] . $image['SRC'];
        $tmp_image = $_SERVER['DOCUMENT_ROOT'] . '/upload/' . $image['FILE_NAME'];
       
        \CFile::ResizeImageFile(
           $image_src, 
           $tmp_image, 
           array('width'=>$param['width'], 'height'=>$param['height']),
           BX_RESIZE_IMAGE_PROPORTIONAL
        );
        unlink($image_src);
        rename($tmp_image, $image_src);
    	return;
    }

    public function resizeIblockImages()
    {
        $param = $this->getParam();
        $i = 0;
        $res = \CIBlockElement::GetList(
           array('ID' => 'ASC'), 
           array('IBLOCK_ID' => $param['id']),
           false,
           false,
           array('ID', 'IBLOCK_ID', $param['resize'])
        );
        while($ar_res = $res->Fetch())
        {
            $this->resize($ar_res[$param['resize']]);
            $i++;
        }
        echo 'Сжато изображений: ' . $i; 
    } 
}
?>