Working with images in Bitrix

Get the full path to the image in Bitrix

CFile::GetPath(315);

We get the result:

/upload/iblock/c1d/k2a29s8d47791f814gja8fd038d83790.jpg

Resize images

// We can use the following conversion constants:
//BX_RESIZE_IMAGE_EXACT —scales to rectangle $ arSize keeping proportions, cutting off excess;
//BX_RESIZE_IMAGE_PROPORTIONAL —scales proportionally, the size is limited to $ arSize;
//BX_RESIZE_IMAGE_PROPORTIONAL_ALT — scales proportionally, the size is limited to $ arSize, improved handling of vertical images.

$arFileTmp = CFile::ResizeImageGet(
	$row['PREVIEW_PICTURE'],
	array("width" => 1000, "height" => 1000),
	BX_RESIZE_IMAGE_PROPORTIONAL,
	true
);
echo $arFileTmp["src"];

Upload and update image

Form an array from the loaded image. For example, to update the image in the product

$arFile = CFile::MakeFileArray($_SERVER["DOCUMENT_ROOT"]."PATH_TO_IMAGE");

Returns an array of the following type

Array
(
    [name] => caa99553003f620f2b1ed91ebb7129e1.jpg
    [size] => 913948
    [tmp_name] => /home/bitrix/www/upload/tmp/434/caa99553003f620f2b1ed91ebb7129e1.jpg
    [type] => image/jpeg
)

Let's update, for example, the photo of the section

$arFile = CFile::MakeFileArray('PATH_TO_IMAGE');

// To get the data array of the already loaded image
// Let's use the following construction
//$arFile = CFile::GetFileArray('ID_OF_IMAGE');

$arPICTURE = $arFile;
$arPICTURE["MODULE_ID"] = "iblock";

$bs = new CIBlockSection;

$arFields = Array(
	"PICTURE" => $arPICTURE,
);

//$ar_result['ID'] -ID of the section being updated
$res = $bs->Update($ar_result['ID'], $arFields, false, false, true);

Removing PREVIEW_PICTURE or DETAIL_PICTURE

$el = new \CIBlockElement;
$el->Update($ELEMENT_ID, array(
    "PREVIEW_PICTURE" => array('del' => 'Y'),
    "DETAIL_PICTURE" => array('del' => 'Y'),
), false, false);

Removing photos from MORE_PHOTO

\CIBlockElement::SetPropertyValuesEx($ELEMENT_ID, $IBLOCK_ID, array("MORE_PHOTO" => array("VALUE" => array("del" => "Y"))));

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