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WP_Site_Icon::delete_attachment_data( int $post_id )

Deletes the Site Icon when the image file is deleted.

Parameters

$post_id

(int) (Required) Attachment ID.

Source

File: wp-admin/includes/class-wp-site-icon.php 

public function delete_attachment_data( $post_id ) {
		$site_icon_id = get_option( 'site_icon' );

		if ( $site_icon_id && $post_id == $site_icon_id ) {
			delete_option( 'site_icon' );
		}
	}

Uses

Uses Description
wp-includes/option.php: delete_option()

Removes option by name. Prevents removal of protected WordPress options.
wp-includes/option.php: get_option()

Retrieves an option value based on an option name.

Changelog

Version Description
4.3.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/classes/wp_site_icon/delete_attachment_data