BaseForm::isImageProperty

public function isImageProperty(array $propertySettings): bool
{
	$fileTypes = (string)$propertySettings['FILE_TYPE'];
	$imageExtensions = explode(',', CFile::GetImageExtensions());
	$fileExtensions = explode(',', $fileTypes);
	$fileExtensions = array_map('trim', $fileExtensions);

	$diffExtensions = array_diff($fileExtensions, $imageExtensions);
	return empty($diffExtensions);
}