# mainwp/5.1/includes/compatible.php

MainWP Dashboard: Self-hosted WordPress Management for Agencies, version 5.1. 184 lines.

- Page: https://pluginprobe.com/plugins/mainwp/5.1/code/includes/compatible.php
- Raw: https://pluginprobe.com/plugins/mainwp/5.1/raw/includes/compatible.php
- Modified: 2024-06-18T12:15:46+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/mainwp/5.1/code/includes/compatible.php#L10-L20`.

```php
<?php
/**
 * MainWP compatible legacy functions.
 *
 * @package MainWP/Dashboard
 */

// phpcs:disable -- legacy functions for backwards compatibility. Required.

if ( ! class_exists( 'MainWP_DB' ) ) {

    /**
     * MainWP Database Compatible class.
     */
    class MainWP_DB { // phpcs:ignore Generic.Classes.OpeningBraceSameLine.ContentAfterBrace -- NOSONAR.

        /**
         * Private static variable to hold the single instance of the class.
         *
         * @var mixed Default null
         */
        private static $instance = null;

        /**
         * Create public static instance.
         *
         * @return MainWP_DB
         */
        public static function instance() {
            if ( null === static::$instance ) {
                static::$instance = new self();
            }
            return static::$instance;
        }

        /**
         * Get child site by ID.
         *
         * @param int   $id           Child site ID.
         * @param array $selectGroups Select groups.
         *
         * @return object|null Database query results or null on failure.
         *
         * @uses \MainWP\Dashboard\MainWP_DB::instance()::get_website_by_id()
         */
        public function getWebsiteById( $id, $selectGroups = false ) {
            return MainWP\Dashboard\MainWP_DB::instance()->get_website_by_id( $id, $selectGroups );
        }

        /**
         * Get child sites by child site IDs.
         *
         * @param array $ids Child site IDs.
         * @param int   $userId User ID.
         *
         * @return object|null Database uery result or null on failure.
         *
         * @uses \MainWP\Dashboard\MainWP_DB::instance()::get_website_by_ids()
         */
        public function getWebsitesByIds( $ids, $userId = null ) {
            return MainWP\Dashboard\MainWP_DB::instance()->get_websites_by_ids( $ids, $userId );
        }

        /**
         * Get child sites by groups IDs.
         *
         * @param array $ids    Groups IDs.
         * @param int   $userId User ID.
         *
         * @return object|null Database uery result or null on failure.
         *
         * @uses \MainWP\Dashboard\MainWP_DB::instance()::get_websites_by_group_ids()
         */
        public function getWebsitesByGroupIds( $ids, $userId = null ) {
            return MainWP\Dashboard\MainWP_DB::instance()->get_websites_by_group_ids( $ids, $userId );
        }

        /**
         * Get sites by user ID.
         *
         * @param int    $userid       User ID.
         * @param bool   $selectgroups Selected groups.
         * @param null   $search_site  Site search field value.
         * @param string $orderBy      Order list by. Default: URL.
         *
         * @return object|null Database query results or null on failure.
         *
         * @uses \MainWP\Dashboard\MainWP_DB::instance()::get_websites_by_user_id()
         */
        public function getWebsitesByUserId( $userid, $selectgroups = false, $search_site = null, $orderBy = 'wp.url' ) {
            return MainWP\Dashboard\MainWP_DB::instance()->get_websites_by_user_id( $userid, $selectgroups, $search_site, $orderBy );
        }

        /**
         * Get Child site wp_options database table.
         *
         * @param array $website Child Site array.
         * @param mixed $option  Child Site wp_options table name.
         *
         * @return string|null Database query result (as string), or null on failure.
         *
         * @uses \MainWP\Dashboard\MainWP_DB::instance()::get_website_option()
         */
        public function getWebsiteOption( $website, $option ) {
            return MainWP\Dashboard\MainWP_DB::instance()->get_website_option( $website, $option );
        }

        /**
         * Update child site options.
         *
         * @param object $website Child site object.
         * @param mixed  $option  Option to update.
         * @param mixed  $value   Value to update with.
         *
         * @uses \MainWP\Dashboard\MainWP_DB::instance()::update_website_option()
         */
        public function updateWebsiteOption( $website, $option, $value ) {
            return MainWP\Dashboard\MainWP_DB::instance()->update_website_option( $website, $option, $value );
        }
    }
}

if ( ! class_exists( 'MainWP_System' ) ) {

    /**
     * MainWP System Compatible class
     *
     * @internal
     */
    class MainWP_System { // phpcs:ignore Generic.Classes.OpeningBraceSameLine.ContentAfterBrace -- NOSONAR.

        /**
         * Public static variable to hold the current plugin version.
         *
         * @var string Current plugin version.
         */
        public static $version = '4.0.7.2'; // NOSONAR - not IP.

        /**
         * Create public static instance.
         *
         * @return MainWP_System
         */
        public static function Instance() {
            return MainWP\Dashboard\Instance();
        }
    }
}

if ( ! class_exists( 'MainWP_Extensions_View' ) ) {

    /**
     * MainWP Extensions View Compatible class.
     *
     * @uses \MainWP\Dashboard\MainWP_Extensions_View::get_available_extensions()
     */
    class MainWP_Extensions_View { // phpcs:ignore Generic.Classes.OpeningBraceSameLine.ContentAfterBrace -- NOSONAR.

        /**
         * Get all available extensions.
         *
         * @return array Available extensions.
         *
         * @devtodo Move to MainWP Server via an XML file.
         */
        public static function getAvailableExtensions() {
            return MainWP\Dashboard\MainWP_Extensions_View::get_available_extensions();
        }
    }
}


/**
 * To compatible with php version < 7.3.0.
 */
if ( ! function_exists( 'array_key_first' ) ) {
    function array_key_first( array $arr ) {
        foreach ( $arr as $key => $unused ) {
            return $key;
        }
        return null;
    }
}

```