wp_get_attachment_image_srcset( int $attachment_id, string|int[] $size = 'medium', array|null $image_meta = null ): string|false

1307function wp_get_attachment_image_srcset( $attachment_id, $size = 'medium', $image_meta = null ) {1308	$image = wp_get_attachment_image_src( $attachment_id, $size );1309 1310	if ( ! $image ) {1311		return false;1312	}1313 1314	if ( ! is_array( $image_meta ) ) {1315		$image_meta = wp_get_attachment_metadata( $attachment_id );1316	}1317 1318	$image_src  = $image[0];1319	$size_array = array(1320		absint( $image[1] ),1321		absint( $image[2] ),1322	);1323 1324	return wp_calculate_image_srcset( $size_array, $image_src, $image_meta, $attachment_id );1325}