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

    [1] => Array
        (
            [sql] => SELECT cat_id FROM `dianmo`.`ecs_similar_goods` WHERE post_id = \' obj[i].id \'
        )

    [2] => Array
        (
            [error] => You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '\' obj[i].id \'' at line 1
        )

    [3] => Array
        (
            [errno] => 1064
        )

)