This article brings you relevant knowledge about laravel, which mainly introduces some basic knowledge, including how to install Laravel, routing, validators, views, etc., the following is Let's take a look, hope it helps everyone.
[Related recommendations: laravel video tutorial]
##composer create-project laravel/laravel project folder name-- prefer-dist
app: The core code of the application
bootstrap: An app.php file that guides the framework, a cache directory (including routing and cache files), and the framework startup file. Generally, it does not move.
config: All configuration files
database: The migrations directory can generate data tables .
public: Entry file storage location, and static resources (similar to tp)
resources:
routes: All route definitions applied
tests: Available for Unit test
vendor: All composer dependency packages
Route::match(['get','post'],'/',function(){});Route::any('/home', function () {
});Route::get('/home/{id}', function ($id) {
echo 'id为：'.$id;});Route::get('/home/{id?}', function ($id = '') {
echo 'id为：'.$id;});Route::get('/home', function () {
echo 'id为：'.$_GET['id'];});Route::any('/home/index', function () {
echo '测试';})->name('hh');For example, the following route:
If adding them one by one is more troublesome, they have a common difference, they all have the /admin/ prefix, and you can set up a routing group Add the group:
Route::group(['prefix'=>'admin'], function () {
Route::get('test1', function () {
echo 'test1';
});
Route::get('test2', function () {
echo 'test2';
});});You can now access it through /admin/test1.
The controller can build a front desk and a back desk:
命令行创建路由：
php artisan make:controller Admin/IndexController
基本路由建立：
Route::get('test/index','TestController@index');分目录路由建立：
Route::get('/admin/index/index','Admin\IndexController@index');引入：use Illuminate\Support\Facades\Validator
$param = $request->all();$rule = [
'name'=>'required|max:2',];$message = [
'required' => ':attribute不能为空',
'max' => ':attribute长度最大为2'];$replace = [
'name' => '姓名',];$validator = Validator::make($param, $rule, $message,$replace);if ($validator->fails()){
return response()->json(['status'=>0,'msg'=>$validator->errors()->first()]);}在控制器中如果要使用一个类，例如use Illuminate\Http\Request，就可以简写为use Request。
但是需要在config目录下的app.php配置文件中加入：
'aliases' => [ 'App' => Illuminate\Support\Facades\App::class, 'Arr' => Illuminate\Support\Arr::class, 'Artisan' => Illuminate\Support\Facades\Artisan::class, 'Auth' => Illuminate\Support\Facades\Auth::class, 'Blade' => Illuminate\Support\Facades\Blade::class, 'Request' => Illuminate\Support\Facades\Request::class, ],
Input::get('id')Input::all()
打印出来的是数组
关于dd（dump+die）
Input::only(['id','name'] //只接收id,其余不接受
Input::except(['name'] //不接收name，其余都接收
Input::has('name') //存在返回true 不存在返回false 其中0返回true视图也可分目录管理：
控制器语法：
return view('home/test');也可写为：
return view('home.test');控制器中：
return view('home/test',['day'=>time()]);视图中：
{{$day}}其中控制器中变量映射有三种：
了解一下compact数组。
控制器中：
public function index(){
$arr = [
0 => [
'name' => 'tom',
'age' => '12',
],
1 => [
'name' => 'bby',
'age' => '13',
]
];
return view('home/test',['data'=>$arr]);
}视图中：
@foreach($data as $k=>$v)
键：{{$k}}
值：{{$v['name']}} <br>@endforeach@if(1==2) 是的 @else 不是的 @endif
@include('welcome')php artisan make:model Model/Admin/Member
此时，就会在app目录内创建：
<?phpnamespace App\Model\Admin;use Illuminate\Database\Eloquent\Model;class Member extends Model{
//定义表名
protected $table = 'student';
//定义主键
protected $primaryKey = 'id';
//定义禁止操作时间
public $timestamps = false;
//设置允许写入的字段
protected $fillable = ['id','sname'];}方式一：
$model = new Member(); $model->sname = '勒布朗'; $res = $model->save(); dd($res);
方式二：
$model = new Member(); $res = $model->create($request->all()); dd($res);
//查询客户与销售顾问的客资列表$data = Custinfo::select(['custinfo.*', 'customers.name'])
->join('customers', 'customers.id', '=', 'custinfo.cust_id')
->where($where)
->get()
->toArray();<?phpnamespace App\Model\Admin;use Illuminate\Database\Eloquent\Model;class Phone extends Model{
//定义表名
protected $table = 'phone';
//定义主键
protected $primaryKey = 'id';
//定义禁止操作时间
public $timestamps = false;
//设置允许写入的字段
protected $fillable = ['id','uid','phone'];}<?phpnamespace App\Model\Admin;use Illuminate\Database\Eloquent\Model;class Member extends Model{
//定义表名
protected $table = 'student';
//定义主键
protected $primaryKey = 'id';
//定义禁止操作时间
public $timestamps = false;
//设置允许写入的字段
protected $fillable = ['id','sname'];
/**
* 获取与用户关联的电话号码记录。
*/
public function getPhone()
{
return $this->hasOne('App\Model\Admin\Phone', 'uid', 'id');
}} //对象转数组
public function Arr($obj)
{
return json_decode(json_encode($obj), true);
}
public function index(){
$infoObj = Member::with('getPhone')->get();
$infoArr = $this->Arr($infoObj);
print_r($infoArr);
}
在config目录下的logging.php中的channels配置：
'custom' => [
'driver' => 'single',
'path' => storage_path('logs/1laravel.log'),
'level' => 'debug',
]控制器中：
$message = ['joytom','rocker'];Log::channel('custom')->info($message);建立一个迁移文件：php artisan make:migration create_shcool_table
会在database\migrations下创建一个文件：
在up方法中增加如下代码：
<?phpuse Illuminate\Database\Migrations\Migration;use Illuminate\Database\Schema\Blueprint;use Illuminate\Support\Facades\Schema;class CreateShcoolTable extends Migration{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('shcool', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('school_name','20')->notNull()->unique();
$table->tinyInteger('status')->default(1);
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::dropIfExists('shcool');
}}更详细的生成SQL方法请参考：数据迁移文件常用方法速查表
写好SQL文件以后，执行：php artisan migrate
将会生成数据表，其中操作日志将记录在这个表中：
php artisan migrate:rollback：回滚最后一次的迁移操作, 删除（回滚）之后会删除迁移记录，并且数据表也会删除，但是迁移文件依旧存在，方便后期继续迁移（创建数据表）。
【相关推荐：laravel视频教程】
The above is the detailed content of Summarize and organize the basic knowledge of Laravel. For more information, please follow other related articles on the PHP Chinese website!
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
