wp_get_attachment_image_attributes │ filter-hook │ WP 2.8.0

Filters the list of attachment image attributes.

Usage

add_filter( 'wp_get_attachment_image_attributes', 'wp_kama_get_attachment_image_attributes_filter', 10, 3 );

/**
 * Function for `wp_get_attachment_image_attributes` filter-hook.
 * 
 * @param string[]     $attr       Array of attribute values for the image markup, keyed by attribute name. See wp_get_attachment_image().
 * @param WP_Post      $attachment Image attachment post.
 * @param string|int[] $size       Requested image size. Can be any registered image size name, or an array of width and height values in pixels (in that order).
 *
 * @return string[]
 */
function wp_kama_get_attachment_image_attributes_filter( $attr, $attachment, $size ){

	// filter...
	return $attr;
}

$attr(string[])

Array of attribute values for the image markup, keyed by attribute name. See wp_get_attachment_image().

$attachment(WP_Post)

Image attachment post.

$size(string|int[])

Requested image size. Can be any registered image size name, or an array of width and height values in pixels (in that order).

Changelog

Where the hook is called

$attr = apply_filters( 'wp_get_attachment_image_attributes', $attr, $attachment, $size );

Where the hook is used in WordPress

add_filter( 'wp_get_attachment_image_attributes', '_wp_post_thumbnail_class_filter' );

remove_filter( 'wp_get_attachment_image_attributes', '_wp_post_thumbnail_class_filter' );