wp_get_attachment_image_srcset() WP 1.0

Retrieves the value for an image attachment's 'srcset' attribute.

No Hooks.

Return

String/true/false. A 'srcset' value string or false.

Usage

wp_get_attachment_image_srcset( $attachment_id, $size, $image_meta );

$attachment_id(int) (required)

Image attachment ID.

$size(array/string)

Image size. Accepts any valid image size, or an array of width and height values in pixels (in that order).
Default: 'medium'

$image_meta(array)

The image meta data as returned by 'wp_get_attachment_metadata()'.
Default: null

Code of wp get attachment image srcset: wp-includes/media.php ^{WP 5.2.1}

<?php
function wp_get_attachment_image_srcset( $attachment_id, $size = 'medium', $image_meta = null ) {
	if ( ! $image = wp_get_attachment_image_src( $attachment_id, $size ) ) {
		return false;
	}

	if ( ! is_array( $image_meta ) ) {
		$image_meta = wp_get_attachment_metadata( $attachment_id );
	}

	$image_src  = $image[0];
	$size_array = array(
		absint( $image[1] ),
		absint( $image[2] ),
	);

	return wp_calculate_image_srcset( $size_array, $image_src, $image_meta, $attachment_id );
}

Related Functions

From category: Images