本文实例讲述了laravel框架数据库配置及操作数据库。分享给大家供大家参考,具体如下:
laravel 数据库配置
数据库配置文件为项目根目录下的config/database.php
- //默认数据库为mysql
- 'default' => env('DB_CONNECTION', 'mysql'),
- 'mysql' => [
- 'driver' => 'mysql',
- 'host' => env('DB_HOST', '127.0.0.1'),
- 'port' => env('DB_PORT', '3306'),
- 'database' => env('DB_DATABASE', 'forge'),
- 'username' => env('DB_USERNAME', 'forge'),
- 'password' => env('DB_PASSWORD', ''),
- 'unix_socket' => env('DB_SOCKET', ''),
- 'charset' => 'utf8mb4',
- 'collation' => 'utf8mb4_unicode_ci',
- 'prefix' => '',
- 'strict' => true,
- 'engine' => null,
- ],
-
发现都在调用env函数,找到env文件,即根目录下的.env文件,
打开修改配置参数
- DB_CONNECTION=mysql
- DB_HOST=127.0.0.1
- DB_PORT=3306
- DB_DATABASE=homestead
- DB_USERNAME=homestead
- DB_PASSWORD=secret
-
修改为本地的数据库信息:
- DB_CONNECTION=mysql
- DB_HOST=localhost
- DB_PORT=3306
- DB_DATABASE=laravel
- DB_USERNAME=root
- DB_PASSWORD=123456
-
laravel 操作数据库
建立student控制器,控制器代码
- namespace App\Http\Controllers;
- use Illuminate\Support\Facades\DB;
- class StudentController extends Controller
- {
- //添加
- public function addstudent(){
- $student = DB::insert('insert into student(name,age,gender) values(?,?,?)',['张三',12,2]);
- var_dump($student);//成功返回bloo值true
- }
- //获取
- public function getall(){
- // $student = DB::select('select * from student');
- $student = DB::select('select * from student where id>?',[1]);
- return $student;//数组
- }
- //修改
- public function updstudent(){
- $student = DB::update('update student set age= ? where name=?',[10,'张三']);
- var_dump($student);//成功返回bloo值true
- }
- //修改
- public function delstudent(){
- $student = DB::delete('delete from student where id=?',[10]);
- var_dump($student);
- }
- }
-
注意 laravel中return true会报错:
(1/1) UnexpectedValueException
The Response content must be a string or object implementing __toString(), "boolean" given.
更多关于Laravel相关内容感兴趣的读者可查看jb51专题:《Laravel框架入门与进阶教程》、《php优秀开发框架总结》、《php面向对象程序设计入门教程》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》
希望本文所述对大家基于Laravel框架的PHP程序设计有所帮助。