<b>MySQL server error report:Array
(
    [0] => Array
        (
            [message] => MySQL Query Error
        )

    [1] => Array
        (
            [sql] => SELECT a.article_id, a.title, ac.cat_name, a.add_time, a.file_url, a.open_type FROM `yyhl_pt`.`ecs_article_cat` AS ac RIGHT JOIN `yyhl_pt`.`ecs_article` AS a ON a.cat_id=ac.cat_id AND a.is_open = 1 WHERE ac.cat_name='设备服务' ORDER BY a.article_type,a.article_id DESC LIMIT 4 
        )

    [2] => Array
        (
            [error] => MySQL server has gone away
        )

    [3] => Array
        (
            [errno] => 2006
        )

)
<b>MySQL server error report:Array
(
    [0] => Array
        (
            [message] => MySQL Query Error
        )

    [1] => Array
        (
            [sql] => SELECT a.article_id, a.title, ac.cat_name, a.add_time, a.file_url, a.open_type FROM `yyhl_pt`.`ecs_article_cat` AS ac RIGHT JOIN `yyhl_pt`.`ecs_article` AS a ON a.cat_id=ac.cat_id AND a.is_open = 1 WHERE ac.cat_name='设备服务' ORDER BY a.article_type,a.article_id DESC LIMIT 4 
        )

    [2] => Array
        (
            [error] => MySQL server has gone away
        )

    [3] => Array
        (
            [errno] => 2006
        )

    [4] => Array
        (
            [message] => MySQL Query Error
        )

    [5] => Array
        (
            [sql] => DELETE FROM `yyhl_pt`.`ecs_sessions_data` WHERE expiry < 1727266940
        )

    [6] => Array
        (
            [error] => MySQL server has gone away
        )

    [7] => Array
        (
            [errno] => 2006
        )

)