這篇文章主要介紹了關於Laravel 學習的基礎知識，有著一定的參考價值，現在分享給大家，有需要的朋友可以參考一下
MVC全名是Model View Controller,是模型-視圖-控制器的縮寫
Model是應用程式中用於處理應用程式資料邏輯的部分
View是應用程式中處理資料顯示的部分
Controller是應用程式中處理使用者互動的部分
Route::match(['get', 'post']), 'match', funtion()
{
return 'match';
});
Route::any(['get', 'post']), funtion()
{
return 'any';
});Route::get('user/{name}', funtion($name)
{
return $id;
})->where('name', '[A-Za-z]+');
Route::get('user/{id}/{name?}', funtion($id, $name='phyxiao')
{
return $id. $name;
})->where(['id' => '[0-9]+', 'name'=> '[A-Za-z]+']);Route::get('user/home', ['as' => 'home', funtion()
{
return route('home');
}]);Route::group(['prefix' => 'user'], funtion()
{
Route::get('home', funtion()
{
return 'home';
});
Route::get('about', funtion()
{
return 'about';
});
});Route::get('index', funtion()
{
return view('welcome');
});php artisan make:controller UserController php artisan make:controller UserController --plain
Route::get('index', 'UserController@index');
php artisan make:model User
DB facode原始尋找####################################################################### ########查詢建構器###、查詢建構器 和Eloquent ORM#相關檔案config/database.php
、.env
$bool = DB::table('user')->insert(['name => phyxiao', 'age' => 18]);
$id = DB::table('user')->insertGetId(['name => phyxiao', 'age' => 18]);
$bool = DB::table('user')->insert([
['name => phyxiao', 'age' => 18],
['name => aoteman', 'age' => 19],
);
var_dump($bool);$num= DB::table('user')->where('id', 12)->update(['age' => 30]); $num= DB::table('user')->increment('age', 3); $num= DB::table('user')->decrement('age', 3); $num= DB::table('user')->where('id', 12)->increment('age', 3); $num= DB::table('user')->where('id', 12)->increment('age', 3, ['name' =>'handsome']);
$num= DB::table('user')->where('id', 12)->delete(); $num= DB::table('user')->where('id', '>=', 12)->delete(); DB::table('user')->truncate();
$users= DB::table('user')->get();
$users= DB::table('user')->where('id', '>=', 12)->get();
$users= DB::table('user')->whereRaw('id >= ? and age > ?', [12, 18])->get();
dd(users);
$user= DB::table('user')->orderBy('id', 'desc')->first();
$names = DB::table('user')->pluck('name');
$names = DB::table('user')->lists('name', 'id');
$users= DB::table('user')->select('id', 'age', 'name')->get();
$users= DB::table('user')->chunk(100, function($user){
dd($user);
if($user->name == 'phyxiao')
return false;
});$num= DB::table('user')->count(); $max= DB::table('user')->max('age'); $min= DB::table('user')->min('age'); $avg= DB::table('user')->avg('age'); $sum= DB::table('user')->avg('sum');
// 建立模型
// app/user.php
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class User extends Model
{
//指定表名
protected $table = 'user';
//指定id
protected $primaryKey= 'id';
//指定允许批量赋值的字段
protected $fillable= ['name', 'age'];
//指定不允许批量赋值的字段
protected $guarded= [];
//自动维护时间戳
public $timestamps = true;
protected function getDateFormat()
{
return time();
}
protected function asDateTime($val)
{
return val;
}
}// ORM操作
// app/Http/Contollers/userController.php
public function orm()
{
//all
$students = Student::all();
//find
$student = Student::find(12);
//findOrFail
$student = Student::findOrFail(12);
// 结合查询构造器
$students = Student::get();
$students = Student::where('id', '>=', '10')->orderBy('age', 'desc')->first();
$num = Student::count();
//使用模型新增数据
$students = new Student();
$students->name = 'phyxiao';
$students->age= 18;
$bool = $student->save();
$student = Student::find(20);
echo date('Y-m-d H:i:s', $student->created_at);
//使用模型的Create方法新增数据
$students = Student::create(
['name' => 'phyxiao', 'age' => 18]
);
//firstOrCreate()
$student = Student::firstOrCreate(
['name' => 'phyxiao']
);
//firstOrNew()
$student = Student::firstOrNew(
['name' => 'phyxiao']
);
$bool= $student->save();
//使用模型更新数据
$student = Student::find(20);
$student->name = 'phyxiao';
$student->age= 18;
$bool = $student->save();
$num = Student::where('id', '>', 20)->update(['age' => 40]);
//使用模型删除数据
$student = Student::find(20);
$bool = $student->delete();
//使用主见删除数据
$num= Student::destroy(20);
$num= Student::destroy([20, 21]);
$num= Student::where('id', '>', 20)->delete;
}<!--展示某个section内容 占位符--> @yield('content', '内容') <!--定义视图片段--> @section(‘header’) 头部 @show
@extends('layouts')
@section(‘header’)
@parent
header
@stop
@section(‘content’)
content
<!--模板输出php变量-->
<p>{{$name}}</p>
<!--模板调用php代码-->
<p>{{ time() }}</p>
<p>{{ date('Y-m-d H:i:s', time()) }}</p>
<p>{{ in_array($name, $arr) ? 'true': 'false' }}</p>
<p>{{ $name or 'default' }}</p>
<!--原样输出-->
<p>@{{$name}}</p>
{{--模板注释--}}
{{--引入子视图--}}
@include('common', ['msg' => 'erro'])
{{--流控制--}}
@if ($name == 'phyxiao')
I'm phyxiao
@elseif($name == 'handsome')
I'm handsome
@else
none
@endif
@unless($name == 'phyxiao')
ture
@endunless
@for($i=0; $i < 10; $i++)
{{$i}}
@endfor
@foreach($students as $student)
{{$student->name}}
@endfor
@forelse($students as $student)
{{$student->name}}
@empty
null
@endforelse
<a herf = "{{url('url')}}">text</a>
<a herf = "{{action('UserController@index')}}">text</a>
<a herf = "{{route('url')}}">text</a>
@stop以上是Laravel 學習的基礎知識的詳細內容。更多資訊請關注PHP中文網其他相關文章！
