_preload_old_requests_classes_and_interfaces example

if ( function_exists( 'set_time_limit' ) ) {
        set_time_limit( 300 );
    }

    /* * Merge the old Requests files and directories into the `$_old_files`. * Then preload these Requests files first, before the files are deleted * and replaced to ensure the code is in memory if needed. */
    $_old_files = array_merge( $_old_files, array_values( $_old_requests_files ) );
    _preload_old_requests_classes_and_interfaces( $to );

    /** * Filters feedback messages displayed during the core update process. * * The filter is first evaluated after the zip file for the latest version * has been downloaded and unzipped. It is evaluated five more times during * the process: * * 1. Before WordPress begins the core upgrade process. * 2. Before Maintenance Mode is enabled. * 3. Before WordPress begins copying over the necessary files. * 4. Before Maintenance Mode is disabled. * 5. Before the database is upgraded. * * @since 2.5.0 * * @param string $feedback The core update feedback messages. */