Helaian Rujukan Laravel

Percuma

Rujukan Laravel yang boleh dicari dan dicetak — Artisan, routing, Eloquent, query builder, migrasi, Blade, pengesahan, dan collection. Percuma.

Artisan CLI

php artisan serve

Start the local development server

php artisan make:model Post -mcr

Model with migration, controller and resource

php artisan make:controller PostController

Generate a new controller class

php artisan make:migration create_posts_table

Create a new migration file

php artisan migrate

Run pending database migrations

php artisan migrate:fresh --seed

Drop all tables, re-migrate and seed

php artisan db:seed

Run the database seeders

php artisan tinker

Open an interactive REPL shell

php artisan route:list

List all registered routes

php artisan optimize

Cache config, routes and views

php artisan queue:work

Process jobs on the queue

php artisan schedule:work

Run the scheduler in the foreground

php artisan storage:link

Symlink storage to the public path

php artisan key:generate

Generate the application key

Routing

Route::get('/users', [UserController::class, 'index'])

Define a GET route to a controller

Route::post('/users', [UserController::class, 'store'])

Define a POST route

Route::put('/users/{user}', [UserController::class, 'update'])

Define a PUT route

Route::patch('/users/{user}', [UserController::class, 'update'])

Define a PATCH route

Route::delete('/users/{user}', [UserController::class, 'destroy'])

Define a DELETE route

Route::get('/users/{id}', $fn)

Required route parameter

Route::get('/users/{id?}', $fn)

Optional route parameter

Route::get('/profile', $fn)->name('profile')

Name a route for URL generation

Route::get('/admin', $fn)->middleware('auth')

Attach middleware to a route

Route::resource('posts', PostController::class)

Route::prefix('admin')->group(function () {})

Group routes under a URI prefix

Route::controller(PostController::class)->group($fn)

Group routes to one controller

Route::fallback($fn)

Handle unmatched routes (404)

Controllers

php artisan make:controller PostController --resource

Resource controller with CRUD methods

public function __invoke(Request $request)

Single-action invokable controller

public function index() {}

List resources (resource method)

public function store(Request $request) {}

Persist a new resource

public function show(Post $post) {}

Show one resource (route model binding)

public function __construct(PostService $svc) {}

Inject a dependency via the constructor

return view('posts.index', ['posts' => $posts])

Return a Blade view with data

return response()->json($data)

Return a JSON response

return redirect()->route('posts.index')

Redirect to a named route

return back()

Redirect to the previous page

Eloquent ORM

Post::all()

Get every record

Post::find($id)

Find a record by primary key

Post::where('active', true)->first()

First record matching a condition

Post::create(['title' => 'Hi'])

Mass-assign and persist a record

$post->update(['title' => 'Edited'])

Update an existing model

$post->delete()

Delete a model instance

Post::firstOrCreate(['slug' => $slug])

Find or create a matching record

Post::updateOrCreate($attrs, $values)

Update if found, otherwise create

Post::with('author')->get()

Eager load a relationship

public function comments() { return $this->hasMany(Comment::class); }

One-to-many relationship

public function author() { return $this->belongsTo(User::class); }

Inverse one-to-many relationship

protected $fillable = ['title', 'body'];

Mass-assignable attributes

protected function casts(): array { return ['published_at' => 'datetime']; }

Attribute casts (casts() method)

Post::onlyTrashed()->restore()

Restore soft-deleted records

Query builder

DB::table('users')->get()

Fetch all rows from a table

DB::table('users')->where('votes', '>', 100)->get()

Filter rows by a condition

DB::table('users')->join('posts', 'users.id', '=', 'posts.user_id')

Inner join two tables

DB::table('users')->orderBy('name')->get()

Order results by a column

DB::table('orders')->groupBy('status')->get()

Group rows by a column

DB::table('users')->select('name', 'email')->get()

Select specific columns

DB::table('users')->insert(['name' => 'Sam'])

Insert a new row

DB::table('users')->where('id', 1)->update(['votes' => 1])

Update matching rows

DB::table('users')->pluck('email')

Get a single column as a collection

DB::table('users')->count()

Count matching rows

DB::table('users')->where('id', 1)->exists()

Check whether rows exist

DB::table('users')->paginate(15)

Paginate the results

DB::table('users')->chunk(100, $fn)

Process results in chunks

Migrations & schema

Schema::create('posts', function (Blueprint $table) {})

Create a new table

$table->id()

Auto-incrementing primary key

$table->string('title')

VARCHAR column

$table->integer('votes')

Integer column

$table->boolean('active')

Boolean column

$table->timestamps()

created_at and updated_at columns

$table->foreignId('user_id')->constrained()

Foreign key with a constraint

$table->string('note')->nullable()

Allow NULL values

$table->boolean('active')->default(true)

Set a default value

$table->index('slug')

Add an index to a column

$table->unique('email')

Add a unique constraint

$table->dropColumn('votes')

Drop a column

Blade templates

@if ($ok) ... @elseif ($x) ... @else ... @endif

Conditional rendering

@foreach ($posts as $post) ... @endforeach

Loop over a collection

@forelse ($posts as $post) ... @empty ... @endforelse

Loop with an empty fallback

{{ $variable }}

Echo escaped output

{!! $html !!}

Echo unescaped raw HTML

@extends('layouts.app')

Inherit from a layout

@section('content') ... @endsection

Define a layout section

@yield('content')

Output a section in a layout

@include('partials.nav')

Include another view

<x-alert type="error" />

Render a Blade component

@csrf

CSRF token field for forms

@auth ... @endauth

Show content to authenticated users

@can('update', $post) ... @endcan

Authorization gate check

{{ $loop->index }}

Loop variable inside @foreach

Validation

$request->validate(['title' => 'required'])

Validate request data inline

'email' => 'required|email'

Required and valid email rule

'name' => 'required|max:255'

Required with a max length

'email' => 'unique:users,email'

Must be unique in a table

'age' => 'nullable|integer|min:18'

Optional integer with a minimum

'role' => ['required', Rule::in(['admin', 'user'])]

Constrain to allowed values

php artisan make:request StorePostRequest

Generate a Form Request class

public function rules(): array { return [...]; }

Form Request validation rules

public function authorize(): bool { return true; }

Form Request authorization

public function messages(): array { return [...]; }

Custom validation messages

$validator = Validator::make($data, $rules)

Create a validator manually

$request->validated()

Get only validated input

Requests & responses

request()->input('name')

Retrieve an input value

request()->query('page')

Retrieve a query string value

request()->all()

Get all input as an array

request()->only(['name', 'email'])

Get a subset of input

request()->has('name')

Check if input is present

response()->json(['ok' => true])

Return a JSON response

redirect()->route('home')->with('status', 'Saved')

Redirect with a flash message

back()->withInput()

Redirect back keeping old input

abort(404)

Throw an HTTP exception

abort_if($user->banned, 403)

Conditionally abort the request

Collections

$collection->map(fn ($x) => $x * 2)

Transform each item

$collection->filter(fn ($x) => $x > 0)

Keep matching items

$collection->each(fn ($x) => $x->save())

Run a callback per item

$collection->pluck('name')

Extract one column

$collection->reduce(fn ($c, $x) => $c + $x, 0)

Reduce to a single value

$collection->sortBy('created_at')

Sort by a key

$collection->groupBy('status')

Group items by a key

$collection->where('active', true)

Filter by a key/value pair

$collection->first()

Get the first item

$collection->contains('name', 'Sam')

Check for a matching item

$collection->sum('price')

Sum a column

$collection->flatten()

Flatten nested collections

$collection->toArray()

Convert to a plain array

Auth & middleware

Auth::user()

Get the authenticated user

Auth::check()

Check if a user is logged in

Auth::id()

Get the authenticated user ID

Auth::login($user)

Log a user in

Auth::logout()

Log the current user out

auth()->user()

Helper for the current user

Route::get('/home', $fn)->middleware('auth')

Protect a route with auth

Gate::allows('update', $post)

Check an authorization gate

$user->can('update', $post)

Check ability against a policy

php artisan make:policy PostPolicy --model=Post

Generate an authorization policy

php artisan make:middleware EnsureTokenIsValid

Generate a middleware class

Helpers & misc

config('app.name')

Read a config value

env('APP_DEBUG', false)

Read an environment variable

route('posts.show', $post)

Generate a URL to a named route

url('/dashboard')

Generate a fully qualified URL

asset('css/app.css')

URL for a public asset

old('email')

Retrieve old flashed input

now()->addDays(7)

Current Carbon timestamp

Str::slug('My Title')

String helper (slugify)

collect([1, 2, 3])->sum()

Create a collection from an array

cache()->remember('key', 60, $fn)

Cache a value for a duration

dd($value)

Dump a value and die

Storage::put('file.txt', $contents)

Write a file to storage

Tiada entri sepadan dengan “:q”.

Mengenai Helaian Rujukan Laravel

Helaian rujukan Laravel ini meringkaskan permukaan rangka kerja yang anda gunakan setiap hari: CLI Artisan, penghalaan, pengawal, ORM Eloquent, pembina pertanyaan, migrasi dan skema, templat Blade, pengesahan, permintaan dan respons, koleksi, pengesahan (auth) dan middleware, serta pembantu.

Laravel mempunyai API yang ekspresif tetapi luas — tandatangan hubungan Eloquent yang tepat, pengubahsuai lajur migrasi, nama peraturan pengesahan, kaedah koleksi — dan setiap baris di sini menunjukkan panggilan sebenar dengan penerangan satu baris, jadi helaian ini terbaca seperti rangka kerja dalam bentuk ringkas.

Ia percuma dan dipaparkan sepenuhnya dalam penyemak imbas anda. Tapis setiap serpihan secara langsung dengan kotak carian, lompat antara bahagian daripada kandungan lekat, salin kod dengan satu klik dan cetak helaian sebagai rujukan rangka kerja semasa anda membina.

Cara menggunakan Helaian Rujukan Laravel

Imbas dua belas bahagian, dari CLI Artisan dan Penghalaan hingga Eloquent ORM ke Pembantu & lain-lain.
Cari istilah seperti migration, hasMany atau validate untuk menapis helaian secara langsung.
Lompat ke bahagian seperti Templat Blade atau Koleksi melalui bar sisi lekat.
Klik satu serpihan atau ikon salinnya untuk menyalin PHP tersebut ke dalam projek anda.
Cetak helaian sebagai rujukan Laravel luar talian.

Soalan lazim

Dua belas bahagian: arahan Artisan, penghalaan, pengawal, Eloquent, pembina pertanyaan, migrasi dan skema, Blade, pengesahan, permintaan dan respons, koleksi, auth dan middleware, serta pembantu am.

Ya. Bahagian Artisan menyenaraikan arahan penjana, migrasi, cache dan penyelenggaraan yang anda jalankan secara berterusan, setiap satu dengan penerangan ringkas tentang apa yang dihasilkan atau dilakukannya.

Ya. Bahagian Eloquent menunjukkan definisi model, hubungan dan corak pertanyaan, manakala bahagian pembina pertanyaan yang berasingan meliputi API fluent peringkat rendah apabila anda memerlukannya.

Ya. Klik kod atau ikon salin yang muncul apabila menuding tetikus pada mana-mana baris dan ia terus disalin ke papan klip anda.

Ya, ia percuma, boleh dicari, boleh dicetak dan boleh diakses tanpa akaun.

Carian popular

laravel cheat sheet artisan commands list eloquent query methods laravel routing syntax laravel validation rules blade directives list laravel migration schema methods laravel collections methods

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