关于thinkphp6.0.2实现对数据库操作
下面由thinkphp框架教程栏目给大家介绍thinkphp6.0.2实现对数据库操作的方法,希望对需要的朋友有所帮助!
因为版本更新导致有些没入门的同学学习thinkphp6出现问题,在这里保留我学习的一点经验!
这是app/contrlar/目录下新建的文件DbTest
namespace app\controller;//要让其控制器显示
use think\facade\Db;//使用哪个基类要包含其路径class DbTest
{
public function demo1()
{
//原生查询的读操作query()
$sql=“SELECT user_id,name,age,email FROM user WHERE age>:age LIMIT :num”;
$map=array(“age”=>20,‘num’=>3);
sql,a);
}
public function demo2()
{
//原生查询的写操作execute()
$sql=“UPDATE user SET age=:age WHERE user_id=:id”;
$map=array(“age”=>20,‘id’=>3);
sql,a.‘条数据!’;
}
//查询构造器
//table()设置数据表
//field()设置查询字段列表
//select()返回满足条件的多条记录
//find()返回满足条件的第一条参数
public function demo3()
{
res);
}
//where()设置查询条件,参数包括字符串,表达式,数组
//fetchsql():true,false
public function demo4()
{
res);
}?>
比起以往版本这个无需设置路由,数据库也有原生文档Env可以修改,想要添加新文档首先在config/app.php里面将应用变量指向你的新文档然后打开浏览器输入:
服务器名/类名/函数名/
即可访问了
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