WP_Site_Health::get_test_plugin_version() WordPress Method

	public function get_test_plugin_version() {
		$result = array(
			'label'       => __( 'Your plugins are all up to date' ),
			'status'      => 'good',
			'badge'       => array(
				'label' => __( 'Security' ),
				'color' => 'blue',
			),
			'description' => sprintf(
				'<p>%s</p>',
				__( 'Plugins extend your site&#8217;s functionality with things like contact forms, ecommerce and much more. That means they have deep access to your site, so it&#8217;s vital to keep them up to date.' )
			),
			'actions'     => sprintf(
				'<p><a href="%s">%s</a></p>',
				esc_url( admin_url( 'plugins.php' ) ),
				__( 'Manage your plugins' )
			),
			'test'        => 'plugin_version',
		);

		$plugins        = get_plugins();
		$plugin_updates = get_plugin_updates();

		$plugins_have_updates = false;
		$plugins_active       = 0;
		$plugins_total        = 0;
		$plugins_need_update  = 0;

		// Loop over the available plugins and check their versions and active state.
		foreach ( $plugins as $plugin_path => $plugin ) {
			$plugins_total++;

			if ( is_plugin_active( $plugin_path ) ) {
				$plugins_active++;
			}

			$plugin_version = $plugin['Version'];

			if ( array_key_exists( $plugin_path, $plugin_updates ) ) {
				$plugins_need_update++;
				$plugins_have_updates = true;
			}
		}

		// Add a notice if there are outdated plugins.
		if ( $plugins_need_update > 0 ) {
			$result['status'] = 'critical';

			$result['label'] = __( 'You have plugins waiting to be updated' );

			$result['description'] .= sprintf(
				'<p>%s</p>',
				sprintf(
					/* translators: %d: The number of outdated plugins. */
					_n(
						'Your site has %d plugin waiting to be updated.',
						'Your site has %d plugins waiting to be updated.',
						$plugins_need_update
					),
					$plugins_need_update
				)
			);

			$result['actions'] .= sprintf(
				'<p><a href="%s">%s</a></p>',
				esc_url( network_admin_url( 'plugins.php?plugin_status=upgrade' ) ),
				__( 'Update your plugins' )
			);
		} else {
			if ( 1 === $plugins_active ) {
				$result['description'] .= sprintf(
					'<p>%s</p>',
					__( 'Your site has 1 active plugin, and it is up to date.' )
				);
			} else {
				$result['description'] .= sprintf(
					'<p>%s</p>',
					sprintf(
						/* translators: %d: The number of active plugins. */
						_n(
							'Your site has %d active plugin, and it is up to date.',
							'Your site has %d active plugins, and they are all up to date.',
							$plugins_active
						),
						$plugins_active
					)
				);
			}
		}

		// Check if there are inactive plugins.
		if ( $plugins_total > $plugins_active && ! is_multisite() ) {
			$unused_plugins = $plugins_total - $plugins_active;

			$result['status'] = 'recommended';

			$result['label'] = __( 'You should remove inactive plugins' );

			$result['description'] .= sprintf(
				'<p>%s %s</p>',
				sprintf(
					/* translators: %d: The number of inactive plugins. */
					_n(
						'Your site has %d inactive plugin.',
						'Your site has %d inactive plugins.',
						$unused_plugins
					),
					$unused_plugins
				),
				__( 'Inactive plugins are tempting targets for attackers. If you are not going to use a plugin, you should consider removing it.' )
			);

			$result['actions'] .= sprintf(
				'<p><a href="%s">%s</a></p>',
				esc_url( admin_url( 'plugins.php?plugin_status=inactive' ) ),
				__( 'Manage inactive plugins' )
			);
		}

		return $result;
	}