string(573) "1064: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 '-15,15' at line 1 [ SQL语句 ] : select id,bookimg,bookname,writername,bookintro,endstatus,publishstatus,publishtime,recomtext,bookcnt,classname,classpath,shortname,collect,weekcollect,monthcollect,weekviewnum,monthviewnum,viewnum,weeksubnum,monthsubnum,subnum,reward,weekreward,monthreward,weekyuepiao,monthyuepiao,yuepiao,userscore,plusdata from viewbookinfo where publishstatus=1 order by publishtime desc, id asc limit -15,15"