wp_img_tag_add_srcset_and_sizes_attr( string $image, string $context, int $attachment_id )

Adds srcset and sizes attributes to an existing img HTML tag.

Parameters Parameters


(string) (Required) The HTML img tag where the attribute should be added.


(string) (Required) Additional context to pass to the filters.


(int) (Required) Image attachment ID.

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Return Return

(string) Converted 'img' element with 'loading' attribute added.

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Source Source

File: wp-includes/media.php

function wp_img_tag_add_srcset_and_sizes_attr( $image, $context, $attachment_id ) {
	 * Filters whether to add the `srcset` and `sizes` HTML attributes to the img tag. Default `true`.
	 * Returning anything else than `true` will not add the attributes.
	 * @since 5.5.0
	 * @param bool   $value         The filtered value, defaults to `true`.
	 * @param string $image         The HTML `img` tag where the attribute should be added.
	 * @param string $context       Additional context about how the function was called or where the img tag is.
	 * @param int    $attachment_id The image attachment ID.
	$add = apply_filters( 'wp_img_tag_add_srcset_and_sizes_attr', true, $image, $context, $attachment_id );

	if ( true === $add ) {
		$image_meta = wp_get_attachment_metadata( $attachment_id );
		return wp_image_add_srcset_and_sizes( $image, $image_meta, $attachment_id );

	return $image;

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Changelog Changelog

Version Description
5.5.0 Introduced.

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