thinkphp数据查询和遍历数组实例,thinkphp数据查询
本文实例讲述了thinkphp数据查询和遍历数组的方法。分享给大家供大家参考。具体方法如下:
数据库可以使用DSN方法进行配置:
复制代码 代码如下:
'DB_PREFIX'=>'tp_', //设置表前缀
'DB_DSN'=>'mysql://root:@localhost:3306/thinkphp',//使用DSN方式配置数据库信息
如果两种方式同时存在,以DSN方式为优先,还有一种简单实用模型的方式.
M() 等效为 new Model();
复制代码 代码如下:
$m=M('User');//表名要大写非常重要
$arr=$m->select();
使用模型的实例可以对数据进行操作,操作的工作一般就是对数据库进行 增删改查 CURD
增 -C Create $m->add()
删 -D Delete $m->delete()
改 -U Update $m->save()
查 -R Read $m->select()
复制代码 代码如下:
$m=M('User');//表名要大写非常重要
$arr=$m->select();//得到的是一个数组
$this->assign('data',$arr);//把一个二维数组分配给data
$this->display();//调用模板
模板可以遍历数组
复制代码 代码如下:
//vo代表的是当前的数组,因为是二维数组按顺序读取。
---------
我们可以开启调试功能中的page_trace,帮助进行调试用的
1.开启调试功能 在index.php中
复制代码 代码如下:
define('APP_DEBUG',true);//开启调试模式
2.需要设置配置文件config.php(Home/Conf/),开启页面trace
复制代码 代码如下:
'SHOW_PAGE_TRACE'=>true,//开启页面Trace
然后刷新就会在页面右下角出现调试台,可以查看sql、错误、流程、文件等调式信息.
希望本文所述对大家的ThinkPHP框架程序设计有所帮助。

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