标签:项目 rds 查询 title -- col desc style keyword
最近做项目,在做搜索模块的时候,模糊查询肯定少不了。
今天就详细的看一下模糊查询:
$where[‘title‘] = array(‘like‘,‘%‘.$words.‘%‘); $where[‘title‘] = array(‘like‘,array(‘%‘.$words.‘%‘,‘%‘.$wordss.‘%‘)); $where[‘title‘] = array(array(‘like‘,‘%‘.$words.‘%‘),array(‘like‘,‘%‘.$wordss.‘%‘));
一、当个字段做模糊查询。
$words = "吃"; $where[‘title‘] = array(‘like‘,‘%‘.$words.‘%‘); $list = $TagDB->where($where)->select();
这样执行的Sql是:
SELECT * FROM `tp_keywords_sanqi` WHERE `title` LIKE ‘%吃%‘
这个可以查询多个字段:
$where[‘title‘] = array(‘like‘,‘%‘.$words.‘%‘); $where[‘description‘] = array(‘like‘,‘%‘.$words.‘%‘); $list = $TagDB->where($where)->select();
上面的坏处:很多时候,我们做的是标题 title的查询,而且查询的时候,要求包含 title 包含两个或者以上的词:
例如:
要求一:查询标题包含 “作用” 或 “怎样” ;
$words = "怎样"; $wordss = "作用"; $where[‘title‘] = array(‘like‘,array(‘%‘.$words.‘%‘,‘%‘.$wordss.‘%‘)); $list = $TagDB->where($where)->select();
执行的Sql是这样的:
SELECT * FROM `tp_keywords_sanqi` WHERE (`title` LIKE ‘%怎样%‘ OR `title` LIKE ‘%作用%‘)
要求二:查询标题中同时包含 “作用” 和 ”怎样“ ;
$words = "怎样"; $wordss = "作用"; $where[‘title‘] = array(array(‘like‘,‘%‘.$words.‘%‘),array(‘like‘,‘%‘.$wordss.‘%‘)); $list = $TagDB->where($where)->select();
执行的sql是这样的:
SELECT * FROM `tp_keywords_sanqi` WHERE ( `title` LIKE ‘%怎样%‘ AND `title` LIKE ‘%作用%‘ )
当然啦!还可以自己写Sql来执行:
$sql = "SELECT * FROM `tp_keywords_sanqi` WHERE `title` LIKE ‘%什么%‘;"; $sql = "SELECT * FROM `tp_keywords_sanqi` WHERE (`title` LIKE ‘%什么%‘) OR (`title` LIKE ‘%吃%‘);"; $sql = "SELECT * FROM `tp_keywords_sanqi` WHERE (`title` LIKE ‘%什么%‘ AND `title` LIKE ‘%作用%‘)"; $list = M()->query($sql);
标签:项目 rds 查询 title -- col desc style keyword
原文地址:https://www.cnblogs.com/e0yu/p/9096115.html