W3cubDocs

/WordPress

WP_Site_Health::check_wp_version_check_exists()

Test if wp_version_check is blocked.

Description

It’s possible to block updates with the wp_version_check filter, but this can’t be checked during an Ajax call, as the filter is never introduced then.

This filter overrides a standard page request if it’s made by an admin through the Ajax call with the right query argument to check for this.

Source

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

public function check_wp_version_check_exists() {
		if ( ! is_admin() || ! is_user_logged_in() || ! current_user_can( 'update_core' ) || ! isset( $_GET['health-check-test-wp_version_check'] ) ) {
			return;
		}

		echo ( has_filter( 'wp_version_check', 'wp_version_check' ) ? 'yes' : 'no' );

		die();
	}

Uses

Uses Description
wp-includes/capabilities.php: current_user_can()

Returns whether the current user has the specified capability.
wp-includes/pluggable.php: is_user_logged_in()

Determines whether the current visitor is a logged in user.
wp-includes/load.php: is_admin()

Determines whether the current request is for an administrative interface page.
wp-includes/plugin.php: has_filter()

Check if any filter has been registered for a hook.

Changelog

Version Description
5.2.0 Introduced.

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