warning
    :mysqli::mysqli():mysqlserverhasgoneawayin
    /disk/wwwroot/api.gets.la/yg_book/yg_index.php
    online
    12
    warning
    :mysqli::mysqli():(hy000/2006):mysqlserverhasgoneawayin
    /disk/wwwroot/api.gets.la/yg_book/yg_index.php
    online
    12
    error:(2006)mysqlserverhasgoneaway