[PHP] Active Record 缓存 ci框架 →→→→→进入此内容的聊天室

来自 , 2019-12-30, 写在 PHP, 查看 120 次.
URL http://www.code666.cn/view/9dc37271
  1. $this->db->start_cache();
  2. $this->db->select('field1');  //缓存此查询
  3. $this->db->stop_cache();
  4.  
  5. $this->db->get('tablename');
  6.  
  7. //Generates: SELECT `field1` FROM (`tablename`)
  8.  
  9. $this->db->select('field2');
  10. $this->db->get('tablename');
  11.  
  12. //Generates: SELECT `field1`, `field2` FROM (`tablename`)  
  13.  
  14. $this->db->flush_cache();  //清空缓存,以下查询不会存在SELECT `field1`
  15.  
  16. $this->db->select('field2');
  17. $this->db->get('tablename');
  18.  
  19. //Generates: SELECT `field2` FROM (`tablename`)
  20.  

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