数据检索，一个代码复用性问题
产品列表
有时需要 链接其他表 读取 品牌 公司 内容
有时只单单读产品标题 ID
有时只要品牌
有时只要种类
有时按同种类 有时按同品牌 同公司 查询 （产品表中自然是留着 品牌ID 公司ID 种类ID等）
这些功能分布于多个页面。 如何写 最少的代码 。。。达到代码复用性。
望大大们给出合理建议，或者说给一些参考示例。
------解决思路----------------------
1. 写一个ORM风格的类，里面写CURD函数，函数操作包含DB连接、表名、字段集合、查询条件、范围、表关联等
2. 再做一个表单验证类，写全常用正则判断函数
一个简易PHP ORM框架就做好了,其实不难的。
------解决思路----------------------
首先你需要的是梳理你的程序逻辑然后才是代码和数据库结构。
------解决思路----------------------
如果单表，直接查询，如果是多个表关联，符合查询，最好写多个方法封装，需要就调用。
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