按照小时显示更新数量怎么实现
用sql调用12小时：gettotal("select count(*) as total from phome_ecms_表 where newstime>UNIX_TIMESTAMP()-24*3600")?>6小时：gettotal("select count(*) as total from phome_ecms_表 where newstime>UNIX_TIMESTAMP()-6*3600")?>
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