### Install Valet

Source: https://laravel.com/framework/docs/8.x/valet

Configures and installs Valet and DnsMasq, and sets up daemons to launch on system start.

```bash
valet install
```

--------------------------------

### Run dusk:install Artisan Command

Source: https://laravel.com/framework/docs/8.x/dusk

Creates the tests/Browser directory and an example Dusk test. Run after installing the package.

```bash
php artisan dusk:install
```

--------------------------------

### Install Laravel via Composer and start server

Source: https://laravel.com/framework/docs/8.x

Create a new Laravel project using Composer, then start the local development server with `php artisan serve`.

```bash
composer create-project laravel/laravel:^8.0 example-app

cd example-app

php artisan serve
```

--------------------------------

### Install Laravel via Laravel Installer

Source: https://laravel.com/framework/docs/8.x

Install the Laravel Installer globally, then create a new project and start the server. Ensure Composer's vendor bin directory is in your $PATH.

```bash
composer global require laravel/installer

laravel new example-app

cd example-app

php artisan serve
```

--------------------------------

### Start Sail with vendor/bin/sail up

Source: https://laravel.com/framework/docs/8.x/sail

Start Sail using the vendor/bin/sail script. This is the default way to invoke Sail commands.

```bash
./vendor/bin/sail up
```

--------------------------------

### Install Telescope for local development only

Source: https://laravel.com/framework/docs/8.x/telescope

Install Telescope with the --dev flag, then publish assets and run migrations for local-only usage.

```bash
composer require laravel/telescope --dev
```

```bash
php artisan telescope:install
```

```bash
php artisan migrate
```

--------------------------------

### Install PHP via Homebrew

Source: https://laravel.com/framework/docs/8.x/valet

Installs PHP using Homebrew.

```bash
brew install php
```

--------------------------------

### Install Breeze with API stack

Source: https://laravel.com/framework/docs/8.x/starter-kits

Commands to install Breeze's authentication API stack for modern JavaScript applications, then run migrations.

```bash
php artisan breeze:install api

php artisan migrate
```

--------------------------------

### Start Octane with --watch flag

Source: https://laravel.com/framework/docs/8.x/octane

Starts Octane with file watching to automatically restart on file changes. Requires Node and the Chokidar library installed.

```bash
php artisan octane:start --watch
```

--------------------------------

### Install Fortify via Composer

Source: https://laravel.com/framework/docs/8.x/fortify

Run this command to install Laravel Fortify using Composer.

```bash
composer require laravel/fortify
```

--------------------------------

### Install Swoole via PECL

Source: https://laravel.com/framework/docs/8.x/octane

Install the Swoole PHP extension using PECL.

```bash
pecl install swoole
```

--------------------------------

### GitHub Actions workflow for Laravel Dusk tests

Source: https://laravel.com/framework/docs/8.x/dusk

Use this GitHub Actions configuration to run Dusk tests on push events. It sets up the environment, starts MySQL, creates a database, installs Composer dependencies, generates an application key, upgrades Chrome Driver, starts the driver and Laravel server, runs Dusk tests, and uploads screenshots and console logs on failure.

```yaml
name: CI
on: [push]
jobs:

  dusk-php:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Prepare The Environment
        run: cp .env.example .env
      - name: Create Database
        run: |
          sudo systemctl start mysql
          mysql --user="root" --password="root" -e "CREATE DATABASE 'my-database' character set UTF8mb4 collate utf8mb4_bin;"
      - name: Install Composer Dependencies
        run: composer install --no-progress --prefer-dist --optimize-autoloader
      - name: Generate Application Key
        run: php artisan key:generate
      - name: Upgrade Chrome Driver
        run: php artisan dusk:chrome-driver `/opt/google/chrome/chrome --version | cut -d " " -f3 | cut -d "." -f1`
      - name: Start Chrome Driver
        run: ./vendor/laravel/dusk/bin/chromedriver-linux &
      - name: Run Laravel Server
        run: php artisan serve --no-reload &
      - name: Run Dusk Tests
        env:
          APP_URL: "http://127.0.0.1:8000"
        run: php artisan dusk
      - name: Upload Screenshots
        if: failure()
        uses: actions/upload-artifact@v2
        with:
          name: screenshots
          path: tests/Browser/screenshots
      - name: Upload Console Logs
        if: failure()
        uses: actions/upload-artifact@v2
        with:
          name: console
          path: tests/Browser/console
```

--------------------------------

### Start Laravel Sail

Source: https://laravel.com/framework/docs/8.x

Navigate to the application directory and run the Sail 'up' command to start the Docker containers. The first run builds the containers and may take several minutes; subsequent starts are faster. After starting, access the app at http://localhost.

```bash
cd example-app

./vendor/bin/sail up
```

--------------------------------

### Install Supervisor on Ubuntu

Source: https://laravel.com/framework/docs/8.x/queues

Use this command to install Supervisor on Ubuntu. It will automatically restart queue:work processes if they fail.

```bash
sudo apt-get install supervisor
```

--------------------------------

### unique() method example

Source: https://laravel.com/framework/docs/8.x/collections

Shows how to use the unique method to get unique items and reset keys with values(). The output is [1, 2, 3, 4].

```php
$collection = collect([1, 1, 2, 2, 3, 4, 2]);

$unique = $collection->unique();

$unique->values()->all();

// [1, 2, 3, 4]
```

--------------------------------

### get() returns item at a key

Source: https://laravel.com/framework/docs/8.x/collections

Returns the item at a given key. If the key does not exist, null is returned. The example retrieves the value for 'name'.

```php
$collection = collect(['name' => 'taylor', 'framework' => 'laravel']);

$value = $collection->get('name');

// taylor
```

--------------------------------

### get() with callback default

Source: https://laravel.com/framework/docs/8.x/collections

Returns the item at a given key, or the result of a callback if the key does not exist. The example passes a callback that returns an email address.

```php
$collection->get('email', function () {
    return '[email protected]';
});

// [email protected]
```

--------------------------------

### Install Ably PHP SDK

Source: https://laravel.com/framework/docs/8.x/broadcasting

Install the Ably PHP SDK using Composer. This is required to broadcast events via Ably.

```bash
composer require ably/ably-php
```

--------------------------------

### nth() - get every n-th element with starting offset

Source: https://laravel.com/framework/docs/8.x/collections

Creates a new collection consisting of every n-th element, starting from a given offset. Example shows usage with offset as second argument.

```php
$collection->nth(4, 1);

// ['b', 'f']
```

--------------------------------

### reduce: Specify initial carry value

Source: https://laravel.com/framework/docs/8.x/collections

Passing a second argument to reduce sets the initial value of $carry. The example starts with 4 and sums [1, 2, 3] to get 10.

```php
$collection->reduce(function ($carry, $item) {
    return $carry + $item;
}, 4);

// 10
```

--------------------------------

### Str::substr() usage example

Source: https://laravel.com/framework/docs/8.x/helpers

Returns the portion of string specified by the start and length parameters. The example extracts 'Laravel' from 'The Laravel Framework' starting at position 4 with length 7.

```php
use Illuminate\Support\Str;

$converted = Str::substr('The Laravel Framework', 4, 7);

// Laravel
```

--------------------------------

### Start Supervisor with supervisorctl

Source: https://laravel.com/framework/docs/8.x/horizon

Updates Supervisor configuration and starts the monitored processes. Run these commands after creating the configuration file.

```bash
sudo supervisorctl reread
```

```bash
sudo supervisorctl update
```

```bash
sudo supervisorctl start horizon
```

--------------------------------

### Basic GET route with closure

Source: https://laravel.com/framework/docs/8.x/routing

Defines a route that responds to GET requests at /greeting and returns 'Hello World'. Uses the Route facade and a closure.

```php
use Illuminate\Support\Facades\Route;

Route::get('/greeting', function () {
    return 'Hello World';
});
```

--------------------------------

### Generate model with various class types using make:model options

Source: https://laravel.com/framework/docs/8.x/eloquent

Shows how to generate a model along with factories, seeders, controllers, policies, and more using various options. Includes shortcuts like -f, -s, -c, -crR, -mfsc, --all, and --pivot.

```bash
# Generate a model and a FlightFactory class...
php artisan make:model Flight --factory
php artisan make:model Flight -f

# Generate a model and a FlightSeeder class...
php artisan make:model Flight --seed
php artisan make:model Flight -s

# Generate a model and a FlightController class...
php artisan make:model Flight --controller
php artisan make:model Flight -c

# Generate a model, FlightController resource class, and form request classes...
php artisan make:model Flight --controller --resource --requests
php artisan make:model Flight -crR

# Generate a model and a FlightPolicy class...
php artisan make:model Flight --policy

# Generate a model and a migration, factory, seeder, and controller...
php artisan make:model Flight -mfsc

# Shortcut to generate a model, migration, factory, seeder, policy, controller, and form requests...
php artisan make:model Flight --all

# Generate a pivot model...
php artisan make:model Member --pivot
```

--------------------------------

### slice() - Return a slice starting at index

Source: https://laravel.com/framework/docs/8.x/collections

Returns a slice of the collection starting at the given index. The example slices from index 4.

```php
$collection = collect([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);

$slice = $collection->slice(4);

$slice->all();

// [5, 6, 7, 8, 9, 10]
```

--------------------------------

### Run breeze:install and compile assets

Source: https://laravel.com/framework/docs/8.x/starter-kits

Commands to publish Breeze's authentication views, routes, controllers, and other resources, then compile assets and run migrations.

```bash
php artisan breeze:install

npm install
npm run dev
php artisan migrate
```

--------------------------------

### Start Supervisor Processes

Source: https://laravel.com/framework/docs/8.x/queues

Run these commands to update Supervisor configuration and start the laravel-worker processes. The start command targets all worker processes defined in the configuration.

```bash
sudo supervisorctl reread

sudo supervisorctl update

sudo supervisorctl start laravel-worker:*
```

--------------------------------

### start: Prepend value if not already present with Str::of()->start()

Source: https://laravel.com/framework/docs/8.x/helpers

Adds a single instance of the given value to a string if it does not already start with that value. Examples show adding a slash to a string that doesn't start with it and leaving one that does unchanged.

```php
use Illuminate\Support\Str;

$adjusted = Str::of('this/string')->start('/');

// /this/string

$adjusted = Str::of('/this/string')->start('/');

// /this/string
```

--------------------------------

### Str::start() usage example

Source: https://laravel.com/framework/docs/8.x/helpers

Adds a single instance of the given value to a string if it does not already start with that value. The example adds '/' to 'this/string' but not to '/this/string'.

```php
use Illuminate\Support\Str;

$adjusted = Str::start('this/string', '/');

// /this/string

$adjusted = Str::start('/this/string', '/');

// /this/string
```

--------------------------------

### Create a resource controller with --resource option

Source: https://laravel.com/framework/docs/8.x/controllers

Run the Artisan command to generate a controller at app/Http/Controllers/PhotoController.php with methods for each resource operation.

```bash
php artisan make:controller PhotoController --resource
```

--------------------------------

### Run Envoy binary

Source: https://laravel.com/framework/docs/8.x/envoy

After installation, the Envoy binary is available in vendor/bin. Run this command to execute Envoy.

```bash
php vendor/bin/envoy
```

--------------------------------

### Create a browser instance with browse method

Source: https://laravel.com/framework/docs/8.x/dusk

Shows a basic Dusk test that creates a user, visits the login page, fills credentials, and asserts the path. The browse method passes a browser instance to the closure.

```php
<?php

namespace Tests\Browser;

use App\Models\User;
use Illuminate\Foundation\Testing\DatabaseMigrations;
use Laravel\Dusk\Chrome;
use Tests\DuskTestCase;

class ExampleTest extends DuskTestCase
{
    use DatabaseMigrations;

    /**
     * A basic browser test example.
     *
     * @return void
     */
    public function test_basic_example()
    {
        $user = User::factory()->create([
            'email' => '[email protected]',
        ]);

        $this->browse(function ($browser) use ($user) {
            $browser->visit('/login')
                    ->type('email', $user->email)
                    ->type('password', 'password')
                    ->press('Login')
                    ->assertPathIs('/home');
        });
    }
}
```

--------------------------------

### startsWith: Check if string starts with given value with Str::of()->startsWith()

Source: https://laravel.com/framework/docs/8.x/helpers

Determines if the given string begins with the given value. The example returns true for 'This is my name' starting with 'This'.

```php
use Illuminate\Support\Str;

$result = Str::of('This is my name')->startsWith('This');

// true
```

--------------------------------

### Update NODE_VERSION in docker-compose.yml

Source: https://laravel.com/framework/docs/8.x/sail

Modify the build.args of the laravel.test service in docker-compose.yml to change the Node version installed by Sail. Sail installs Node 16 by default; this example sets NODE_VERSION to '14'.

```yaml
build:
    args:
        WWWGROUP: '${WWWGROUP}'
        NODE_VERSION: '14'
```

--------------------------------

### Publish Telescope assets and run migrations

Source: https://laravel.com/framework/docs/8.x/telescope

After installing Telescope, publish its assets using the telescope:install Artisan command and run the migrate command to create the necessary tables.

```bash
php artisan telescope:install
```

```bash
php artisan migrate
```

--------------------------------

### Install Horizon via Composer

Source: https://laravel.com/framework/docs/8.x/horizon

Run this command to install Laravel Horizon using Composer. Requires Redis to be set as the queue connection in config/queue.php.

```bash
composer require laravel/horizon
```

--------------------------------

### Make a GET request with Http facade

Source: https://laravel.com/framework/docs/8.x/http-client

Use the Http facade's get method to make a basic GET request. Returns an Illuminate\Http\Client\Response instance.

```php
use Illuminate\Support\Facades\Http;

$response = Http::get('http://example.com');
```

--------------------------------

### Create on-demand disk with Storage::build

Source: https://laravel.com/framework/docs/8.x/filesystem

Create a disk at runtime by passing a configuration array to the Storage facade's build method. The configuration must include a driver and root path. The returned disk instance can then be used to store files.

```php
use Illuminate\Support\Facades\Storage;

$disk = Storage::build([
    'driver' => 'local',
    'root' => '/path/to/root',
]);

$disk->put('image.jpg', $content);
```

--------------------------------

### diff method: get models not in given collection

Source: https://laravel.com/framework/docs/8.x/eloquent-collections

The diff method returns all models that are not present in the given collection. The example uses a query to get a collection of users with IDs 1, 2, and 3.

```php
use App\Models\User;

$users = $users->diff(User::whereIn('id', [1, 2, 3])->get());
```

--------------------------------

### Start Horizon with artisan horizon

Source: https://laravel.com/framework/docs/8.x/horizon

Starts all configured worker processes for the current environment. Run this command from your application's root directory.

```bash
php artisan horizon
```

--------------------------------

### Str::length() - Get string length

Source: https://laravel.com/framework/docs/8.x/helpers

Returns the length of the given string. Example output: 7.

```php
use Illuminate\Support\Str;

$length = Str::length('Laravel');

// 7
```

--------------------------------

### Create a Setup Intent with Cashier's createSetupIntent method

Source: https://laravel.com/framework/docs/8.x/billing

Use the Billable trait's createSetupIntent method in a route or controller to create a new Setup Intent and pass it to the view that renders the payment method form.

```php
return view('update-payment-method', [
    'intent' => $user->createSetupIntent()
]);
```

--------------------------------

### Retrieve options with option and options methods

Source: https://laravel.com/framework/docs/8.x/artisan

Use $this->option('queue') to get a specific option and $this->options() to get all options as an array.

```php
// Retrieve a specific option...
$queueName = $this->option('queue');

// Retrieve all options as an array...
$options = $this->options();
```

--------------------------------

### Create a new Laravel project on Windows

Source: https://laravel.com/framework/docs/8.x

Run this command in a WSL2 terminal to create a new Laravel application in a directory named 'example-app'. The directory will be created in the current working directory.

```bash
curl -s https://laravel.build/example-app | bash
```

--------------------------------

### Access Swoole table with Octane::table

Source: https://laravel.com/framework/docs/8.x/octane

Uses the Octane facade to set and get values from the 'example' table. The set method stores a row with a UUID key, and the get method retrieves it. Requires Swoole.

```php
use Laravel\Octane\Facades\Octane;

Octane::table('example')->set('uuid', [
    'name' => 'Nuno Maduro',
    'votes' => 1000,
]);

return Octane::table('example')->get('uuid');
```

--------------------------------

### splice() basic example

Source: https://laravel.com/framework/docs/8.x/collections

Removes and returns a slice of items starting at the specified index. The original collection is modified.

```php
$collection = collect([1, 2, 3, 4, 5]);

$chunk = $collection->splice(2);

$chunk->all();

// [3, 4, 5]

$collection->all();

// [1, 2]
```

--------------------------------

### Str::plural() example

Source: https://laravel.com/framework/docs/8.x/helpers

Converts a singular word to its plural form. Supports only English. The first example shows basic pluralization, the second shows using an integer second argument to get singular or plural form.

```php
use Illuminate\Support\Str;

$plural = Str::plural('car');

// cars

$plural = Str::plural('child');

// children
```

```php
use Illuminate\Support\Str;

$plural = Str::plural('child', 2);

// children

$singular = Str::plural('child', 1);

// child
```

--------------------------------

### View help screen for a command

Source: https://laravel.com/framework/docs/8.x/artisan

Precede the command name with `help` to display its arguments and options.

```bash
php artisan help migrate
```

--------------------------------

### Install Dropbox Flysystem Adapter with Composer

Source: https://laravel.com/framework/docs/8.x/filesystem

Install the community-maintained Dropbox adapter for Flysystem using Composer. This is required before registering the custom driver.

```bash
composer require spatie/flysystem-dropbox
```

--------------------------------

### Install Composer packages for S3, SFTP, and cached adapter

Source: https://laravel.com/framework/docs/8.x/filesystem

Run these Composer commands to install the required Flysystem packages for S3, SFTP, and optional cached adapter.

```bash
composer require --with-all-dependencies league/flysystem-aws-s3-v3 "^1.0"
```

```bash
composer require league/flysystem-sftp "~1.0"
```

```bash
composer require league/flysystem-cached-adapter "~1.0"
```

--------------------------------

### Build a query with constraints using Flight::where()->orderBy()->take()->get()

Source: https://laravel.com/framework/docs/8.x/eloquent

Add constraints to an Eloquent query and retrieve results with the get method. The example filters by active, orders by name, and limits to 10 results.

```php
$flights = Flight::where('active', 1)
               ->orderBy('name')
               ->take(10)
               ->get();
```

--------------------------------

### Create an on-demand channel with Log::build

Source: https://laravel.com/framework/docs/8.x/logging

Create an on-demand channel by providing configuration at runtime without it being present in the logging configuration file. The example builds a 'single' driver channel with a custom log path and logs an info message.

```php
use Illuminate\Support\Facades\Log;

Log::build([
  'driver' => 'single',
  'path' => storage_path('logs/custom.log'),
])->info('Something happened!');
```

--------------------------------

### intersect method: get models also present in given collection

Source: https://laravel.com/framework/docs/8.x/eloquent-collections

The intersect method returns all models that are also present in the given collection. The example uses a query to get a collection of users with IDs 1, 2, and 3.

```php
use App\Models\User;

$users = $users->intersect(User::whereIn('id', [1, 2, 3])->get());
```

--------------------------------

### kebab method example

Source: https://laravel.com/framework/docs/8.x/helpers

Converts a string to kebab-case. Example: 'fooBar' becomes 'foo-bar'.

```php
use Illuminate\Support\Str;

$converted = Str::of('fooBar')->kebab();

// foo-bar
```

--------------------------------

### Install Laravel Valet via Composer

Source: https://laravel.com/framework/docs/8.x/valet

Installs Laravel Valet as a global Composer package.

```bash
composer global require laravel/valet
```

--------------------------------

### Run Homestead initialization script

Source: https://laravel.com/framework/docs/8.x/homestead

Executes the initialization script to create the Homestead.yaml configuration file. Use 'bash init.sh' on macOS/Linux and 'init.bat' on Windows.

```bash
// macOS / Linux...
bash init.sh

// Windows...
init.bat
```

--------------------------------

### Accessing Tagged Cache Items with Cache::tags()->get()

Source: https://laravel.com/framework/docs/8.x/cache

Retrieve tagged cache items by passing the same ordered list of tags to tags() and then calling get() with the key. The example retrieves John and Anne using their respective tags.

```php
$john = Cache::tags(['people', 'artists'])->get('John');

$anne = Cache::tags(['people', 'authors'])->get('Anne');
```

--------------------------------

### Str::pluralStudly() example

Source: https://laravel.com/framework/docs/8.x/helpers

Converts a singular studly caps word to its plural form. Supports only English. The first example shows basic pluralization, the second shows using an integer second argument to get singular or plural form.

```php
use Illuminate\Support\Str;

$plural = Str::pluralStudly('VerifiedHuman');

// VerifiedHumans

$plural = Str::pluralStudly('UserFeedback');

// UserFeedback
```

```php
use Illuminate\Support\Str;

$plural = Str::pluralStudly('VerifiedHuman', 2);

// VerifiedHumans

$singular = Str::pluralStudly('VerifiedHuman', 1);

// VerifiedHuman
```

--------------------------------

### Example JSON response for assertJsonPath

Source: https://laravel.com/framework/docs/8.x/http-tests

Example JSON data returned by the application, used to demonstrate assertJsonPath.

```json
{
    "user": {
        "name": "Steve Schoger"
    }
}
```

--------------------------------

### Get RoadRunner binary in Sail shell

Source: https://laravel.com/framework/docs/8.x/octane

Start a Sail shell and use the `rr` executable to download the Linux build of the RoadRunner binary.

```bash
./vendor/bin/sail shell

# Within the Sail shell...
./vendor/bin/rr get-binary
```

--------------------------------

### Install Pusher Channels PHP SDK via Composer

Source: https://laravel.com/framework/docs/8.x/broadcasting

Run this Composer command to install the Pusher Channels PHP SDK, required when broadcasting with Pusher Channels.

```bash
composer require pusher/pusher-php-server
```

--------------------------------

### get() with default value

Source: https://laravel.com/framework/docs/8.x/collections

Returns the item at a given key, or a default value if the key does not exist. The example passes 34 as the default for 'age'.

```php
$collection = collect(['name' => 'taylor', 'framework' => 'laravel']);

$value = $collection->get('age', 34);

// 34
```

--------------------------------

### Install Supervisor on Ubuntu

Source: https://laravel.com/framework/docs/8.x/horizon

Installs Supervisor, a process monitor for Linux, using apt-get. For non-Ubuntu systems, use the operating system's package manager.

```bash
sudo apt-get install supervisor
```

--------------------------------

### Podcast model without real-time facade (injecting Publisher)

Source: https://laravel.com/framework/docs/8.x/facades

Shows the original Podcast model that requires a Publisher instance to be injected into the publish method. This is the baseline example before using real-time facades.

```php
<?php

namespace App\Models;

use App\Contracts\Publisher;
use Illuminate\Database\Eloquent\Model;

class Podcast extends Model
{
    /**
     * Publish the podcast.
     *
     * @param  Publisher  $publisher
     * @return void
     */
    public function publish(Publisher $publisher)
    {
        $this->update(['publishing' => now()]);

        $publisher->publish($this);
    }
}
```

--------------------------------

### Install Cashier Paddle via Composer

Source: https://laravel.com/framework/docs/8.x/cashier-paddle

Run this command to install the Laravel Cashier Paddle package using Composer.

```bash
composer require laravel/cashier-paddle
```

--------------------------------

### Nested Resource URI Example

Source: https://laravel.com/framework/docs/8.x/controllers

Example URI pattern for a nested resource route defined with dot notation.

```text
/photos/{photo}/comments/{comment}
```

--------------------------------

### nth() - get every n-th element

Source: https://laravel.com/framework/docs/8.x/collections

Creates a new collection consisting of every n-th element. Example shows usage with default offset.

```php
$collection = collect(['a', 'b', 'c', 'd', 'e', 'f']);

$collection->nth(4);

// ['a', 'e']
```

--------------------------------

### Define publish groups with tags in service provider boot method

Source: https://laravel.com/framework/docs/8.x/packages

In the boot method of a package's service provider, use the publishes method with tags to define separate publish groups. The example defines 'courier-config' and 'courier-migrations' groups for the courier package.

```php
/**
 * Bootstrap any package services.
 *
 * @return void
 */
public function boot()
{
    $this->publishes([
        __DIR__.'/../config/package.php' => config_path('package.php')
    ], 'courier-config');

    $this->publishes([
        __DIR__.'/../database/migrations/' => database_path('migrations')
    ], 'courier-migrations');
}
```

--------------------------------

### Install Laravel Scout via Composer

Source: https://laravel.com/framework/docs/8.x/scout

Run this command to install the Laravel Scout package via Composer.

```bash
composer require laravel/scout
```

--------------------------------

### modelKeys: Get primary keys of all models

Source: https://laravel.com/framework/docs/8.x/eloquent-collections

Returns an array of primary keys for all models in the collection. The example shows the result for a collection of five users.

```php
$users->modelKeys();

// [1, 2, 3, 4, 5]
```

--------------------------------

### Create subscription with newSubscription and returnTo

Source: https://laravel.com/framework/docs/8.x/cashier-paddle

Creates a subscription for the user and returns a pay link. Uses the newSubscription method with a monthly price and a return URL.

```php
use Illuminate\Http\Request;

Route::get('/user/subscribe', function (Request $request) {
    $payLink = $user->newSubscription('default', $monthly = 12345)
        ->returnTo(route('home'))
        ->create();

    return view('billing', ['payLink' => $payLink]);
});
```

--------------------------------

### Install Chokidar for file watching

Source: https://laravel.com/framework/docs/8.x/octane

Installs the Chokidar file-watching library as a dev dependency, required for the --watch flag.

```bash
npm install --save-dev chokidar
```

--------------------------------

### Execute PHP code before tasks with @setup

Source: https://laravel.com/framework/docs/8.x/envoy

Use the @setup directive to define a block of PHP code that executes before your Envoy tasks.

```blade
@setup
    $now = new DateTime;
@endsetup
```

--------------------------------

### count() - Get total number of items

Source: https://laravel.com/framework/docs/8.x/collections

Returns the total number of items in the collection. The example shows a collection of four items and the result 4.

```php
$collection = collect([1, 2, 3, 4]);

$collection->count();

// 4
```

--------------------------------

### Publish package configuration with publishes()

Source: https://laravel.com/framework/docs/8.x/packages

Call the publishes method from the boot method of your service provider to allow users to publish the package's configuration file to the application's config directory. When users run vendor:publish, the file is copied to the specified location.

```php
/**
 * Bootstrap any package services.
 *
 * @return void
 */
public function boot()
{
    $this->publishes([
        __DIR__.'/../config/courier.php' => config_path('courier.php'),
    ]);
}
```

--------------------------------

### Install MeiliSearch PHP SDK

Source: https://laravel.com/framework/docs/8.x/scout

Required when using the MeiliSearch driver. Install the MeiliSearch PHP SDK and HTTP factory via Composer.

```bash
composer require meilisearch/meilisearch-php http-interop/http-factory-guzzle
```

--------------------------------

### Process specific queue with --queue option

Source: https://laravel.com/framework/docs/8.x/queues

Start a worker that only processes a particular queue on a given connection. For example, process only the emails queue on the redis connection.

```bash
php artisan queue:work redis --queue=emails
```

--------------------------------

### Install Tailwind CSS and generate config

Source: https://laravel.com/framework/docs/8.x/mix

Install Tailwind CSS via NPM and generate the `tailwind.config.js` file using `npx tailwindcss init`.

```bash
npm install

npm install -D tailwindcss

npx tailwindcss init
```

--------------------------------

### mode() - get mode value from collection

Source: https://laravel.com/framework/docs/8.x/collections

Returns the mode value of a given key or of the collection itself. Example shows usage with an array of associative arrays and simple arrays.

```php
$mode = collect([
    ['foo' => 10],
    ['foo' => 10],
    ['foo' => 20],
    ['foo' => 40]
])->mode('foo');

// [10]

$mode = collect([1, 1, 2, 4])->mode();

// [1]

$mode = collect([1, 1, 2, 2])->mode();

// [1, 2]
```

--------------------------------

### Write a file to the local disk using Storage::disk('local')->put()

Source: https://laravel.com/framework/docs/8.x/filesystem

Writes 'Contents' to storage/app/example.txt using the local driver. The root directory defaults to storage/app, so the file is placed there.

```php
use Illuminate\Support\Facades\Storage;

Storage::disk('local')->put('example.txt', 'Contents');
```

--------------------------------

### Share site via Expose

Source: https://laravel.com/framework/docs/8.x/valet

Navigate to the site directory and run `expose`. Expose displays the sharable URL. Press `Control + C` to stop sharing. Requires Expose to be installed.

```bash
cd ~/Sites/laravel

expose
```

--------------------------------

### min() - get minimum value from collection

Source: https://laravel.com/framework/docs/8.x/collections

Returns the minimum value of a given key or of the collection itself. Example shows usage with an array of associative arrays and a simple array.

```php
$min = collect([['foo' => 10], ['foo' => 20]])->min('foo');

// 10

$min = collect([1, 2, 3, 4, 5])->min();

// 1
```

--------------------------------

### median() - get median value from collection

Source: https://laravel.com/framework/docs/8.x/collections

Returns the median value of a given key or of the collection itself. Example shows usage with an array of associative arrays and a simple array.

```php
$median = collect([
    ['foo' => 10],
    ['foo' => 10],
    ['foo' => 20],
    ['foo' => 40]
])->median('foo');

// 15

$median = collect([1, 1, 2, 4])->median();

// 1.5
```

--------------------------------

### max() - get maximum value from collection

Source: https://laravel.com/framework/docs/8.x/collections

Returns the maximum value of a given key or of the collection itself. Example shows usage with an array of associative arrays and a simple array.

```php
$max = collect([
    ['foo' => 10],
    ['foo' => 20]
])->max('foo');

// 20

$max = collect([1, 2, 3, 4, 5])->max();

// 5
```

--------------------------------

### Create Laravel project with Git repository

Source: https://laravel.com/framework/docs/8.x

Use the `--git` flag to initialize a Git repository and commit the base Laravel skeleton. Requires Git to be installed and configured.

```bash
laravel new example-app --git
```

--------------------------------

### Arr::only - Get specified key/value pairs

Source: https://laravel.com/framework/docs/8.x/helpers

Returns only the specified key/value pairs from the given array. The example extracts 'name' and 'price' from an array with three keys.

```php
use Illuminate\Support\Arr;

$array = ['name' => 'Desk', 'price' => 100, 'orders' => 10];

$slice = Arr::only($array, ['name', 'price']);

// ['name' => 'Desk', 'price' => 100]
```

--------------------------------

### Create and run queue table migration

Source: https://laravel.com/framework/docs/8.x/queues

Run the queue:table Artisan command to generate a migration for the jobs table, then migrate the database with the migrate command.

```bash
php artisan queue:table
```

```bash
php artisan migrate
```

--------------------------------

### Refresh a model with fresh()

Source: https://laravel.com/framework/docs/8.x/eloquent

Use the fresh method to re-retrieve the model from the database without affecting the existing instance. The example retrieves a flight and then gets a fresh copy.

```php
$flight = Flight::where('number', 'FR 900')->first();

$freshFlight = $flight->fresh();
```

--------------------------------

### Define a console command with ask and choice

Source: https://laravel.com/framework/docs/8.x/console-tests

Example console command that asks for a name and language preference, then outputs a line. Used to demonstrate testing with expectsQuestion and expectsOutput.

```php
Artisan::command('question', function () {
    $name = $this->ask('What is your name?');

    $language = $this->choice('Which language do you prefer?', [
        'PHP',
        'Ruby',
        'Python',
    ]);

    $this->line('Your name is '.$name.' and you prefer '.$language.'.');
});
```

--------------------------------

### Share site via Ngrok

Source: https://laravel.com/framework/docs/8.x/valet

Navigate to the site directory and run `valet share`. A public URL is copied to the clipboard. Press `Control + C` to stop sharing. Requires an Ngrok account and authentication token. Additional parameters like `--region=eu` can be passed.

```bash
cd ~/Sites/laravel

valet share
```

--------------------------------

### Invoke the 'github' macro

Source: https://laravel.com/framework/docs/8.x/http-client

After defining the macro, call it from anywhere to create a pending request with the configured headers and base URL. This example sends a GET request to the root path.

```php
$response = Http::github()->get('/');
```

--------------------------------

### Supervisor configuration for Horizon

Source: https://laravel.com/framework/docs/8.x/horizon

Example Supervisor configuration file (horizon.conf) that starts and monitors the Horizon process. Ensure stopwaitsecs is greater than the longest running job's duration.

```ini
[program:horizon]
process_name=%(program_name)s
command=php /home/forge/example.com/artisan horizon
autostart=true
autorestart=true
user=forge
redirect_stderr=true
stdout_logfile=/home/forge/example.com/horizon.log
stopwaitsecs=3600
```

--------------------------------

### Podcast model with real-time facade (using Facades\App\Contracts\Publisher)

Source: https://laravel.com/framework/docs/8.x/facades

Shows the same Podcast model but using a real-time facade. The Publisher is resolved from the service container via the Facades prefix, and the publish method no longer requires an injected publisher.

```php
<?php

namespace App\Models;

use Facades\App\Contracts\Publisher;
use Illuminate\Database\Eloquent\Model;

class Podcast extends Model
{
    /**
     * Publish the podcast.
     *
     * @return void
     */
    public function publish()
    {
        $this->update(['publishing' => now()]);

        Publisher::publish($this);
    }
}
```

--------------------------------

### flatten() flattens a multi-dimensional collection

Source: https://laravel.com/framework/docs/8.x/collections

Flattens a multi-dimensional collection into a single dimension. The example shows a collection with a nested 'languages' array, then calls flatten() and all() to get the flattened array.

```php
$collection = collect([
    'name' => 'taylor',
    'languages' => [
        'php', 'javascript'
    ]
]);

$flattened = $collection->flatten();

$flattened->all();

// ['taylor', 'php', 'javascript'];
```

--------------------------------

### Travis CI .travis.yml configuration for Dusk

Source: https://laravel.com/framework/docs/8.x/dusk

Use this .travis.yml configuration to run Dusk tests on Travis CI. It sets up PHP 7.3, Chrome stable, copies .env.testing, installs dependencies, generates an app key, installs the Chrome driver, starts Chrome headless and the PHP server, and runs Dusk.

```yaml
language: php

php:
  - 7.3

addons:
  chrome: stable

install:
  - cp .env.testing .env
  - travis_retry composer install --no-interaction --prefer-dist
  - php artisan key:generate
  - php artisan dusk:chrome-driver

before_script:
  - google-chrome-stable --headless --disable-gpu --remote-debugging-port=9222 http://localhost &
  - php artisan serve --no-reload &

script:
  - php artisan dusk
```

--------------------------------

### Basic Controller Example: UserController

Source: https://laravel.com/framework/docs/8.x/controllers

Shows a basic controller class that extends the base controller and returns a view with a user model. The show method uses User::findOrFail to retrieve the user by ID.

```php
<?php

namespace App\Http\Controllers;

use App\Http\Controllers\Controller;
use App\Models\User;

class UserController extends Controller
{
    /**
     * Show the profile for a given user.
     *
     * @param  int  $id
     * @return \Illuminate\View\View
     */
    public function show($id)
    {
        return view('user.profile', [
            'user' => User::findOrFail($id)
        ]);
    }
}
```

--------------------------------

### substr: Extract substring with Str::of()->substr()

Source: https://laravel.com/framework/docs/8.x/helpers

Returns the portion of the string specified by the given start and length parameters. Examples show extracting from position 8 and with a length of 5.

```php
use Illuminate\Support\Str;

$string = Str::of('Laravel Framework')->substr(8);

// Framework

$string = Str::of('Laravel Framework')->substr(8, 5);

// Frame
```

--------------------------------

### Run Homestead init script (macOS/Linux and Windows)

Source: https://laravel.com/framework/docs/8.x/homestead

Run bash init.sh on macOS/Linux or init.bat on Windows from the Homestead directory to update additional configuration files. You will be asked whether to overwrite existing Homestead.yaml, after.sh, and aliases files.

```bash
// macOS / Linux...
bash init.sh
```

```bash
// Windows...
init.bat
```

--------------------------------

### Enable Xdebug by setting SAIL_XDEBUG_MODE in .env

Source: https://laravel.com/framework/docs/8.x/sail

Add the SAIL_XDEBUG_MODE variable to your .env file to enable Xdebug. The mode 'develop,debug' is shown as an example. This must be set before starting Sail.

```plaintext
SAIL_XDEBUG_MODE=develop,debug
```

--------------------------------

### Query active and cancelled subscriptions using scopes

Source: https://laravel.com/framework/docs/8.x/cashier-paddle

Use the active() and cancelled() query scopes to retrieve subscriptions in those states. The example shows getting all active subscriptions and all cancelled subscriptions for a user.

```php
// Get all active subscriptions...
$subscriptions = Subscription::query()->active()->get();

// Get all of the cancelled subscriptions for a user...
$subscriptions = $user->subscriptions()->cancelled()->get();
```

--------------------------------

### Install Breeze with Inertia Vue or React stack

Source: https://laravel.com/framework/docs/8.x/starter-kits

Commands to install Breeze with the Inertia.js frontend implementation using Vue or React, then compile assets and run migrations.

```bash
php artisan breeze:install vue

// Or...

php artisan breeze:install react

npm install
npm run dev
php artisan migrate
```

--------------------------------

### Return a view using the View facade

Source: https://laravel.com/framework/docs/8.x/views

Use the View facade's make method to return a view. The first argument is the view name, the second is an array of data.

```php
use Illuminate\Support\Facades\View;

return View::make('greeting', ['name' => 'James']);
```

--------------------------------

### except method: get models without given primary keys

Source: https://laravel.com/framework/docs/8.x/eloquent-collections

The except method returns all models that do not have the given primary keys. The example excludes users with IDs 1, 2, and 3.

```php
$users = $users->except([1, 2, 3]);
```

--------------------------------

### Set lock expiration with expireAfter

Source: https://laravel.com/framework/docs/8.x/queues

Explicitly defines a lock expiration time using the expireAfter method. The example releases the WithoutOverlapping lock three minutes (180 seconds) after the job starts processing.

```php
/**
 * Get the middleware the job should pass through.
 *
 * @return array
 */
public function middleware()
{
    return [(new WithoutOverlapping($this->order->id))->expireAfter(180)];
}
```

--------------------------------

### Load a package view using package::view syntax

Source: https://laravel.com/framework/docs/8.x/packages

Once the view path is registered, use the 'package::view' syntax to load a view from the package. This example loads the 'dashboard' view from the 'courier' package.

```php
Route::get('/dashboard', function () {
    return view('courier::dashboard');
});
```

--------------------------------

### Mocking Cache facade in a test

Source: https://laravel.com/framework/docs/8.x/mocking

Test example that mocks the Cache facade's get method using shouldReceive, expecting it to be called once with 'key' and return 'value'. This is used to test the controller action.

```php
<?php

namespace Tests\Feature;

use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Foundation\Testing\WithoutMiddleware;
use Illuminate\Support\Facades\Cache;
use Tests\TestCase;

class UserControllerTest extends TestCase
{
    public function testGetIndex()
    {
        Cache::shouldReceive('get')
                    ->once()
                    ->with('key')
                    ->andReturn('value');

        $response = $this->get('/users');

        // ...
    }
}
```

--------------------------------

### Arr::crossJoin - Cross join arrays to get Cartesian product

Source: https://laravel.com/framework/docs/8.x/helpers

Cross joins the given arrays, returning a Cartesian product with all possible permutations. The example shows two and three input arrays.

```php
use Illuminate\Support\Arr;

$matrix = Arr::crossJoin([1, 2], ['a', 'b']);

/*
    [
        [1, 'a'],
        [1, 'b'],
        [2, 'a'],
        [2, 'b'],
    ]
*/

$matrix = Arr::crossJoin([1, 2], ['a', 'b'], ['I', 'II']);

/*
    [
        [1, 'a', 'I'],
        [1, 'a', 'II'],
        [1, 'b', 'I'],
        [1, 'b', 'II'],
        [2, 'a', 'I'],
        [2, 'a', 'II'],
        [2, 'b', 'I'],
        [2, 'b', 'II'],
    ]
*/
```

--------------------------------

### Example database URL

Source: https://laravel.com/framework/docs/8.x/database

An example database URL provided by managed providers like AWS and Heroku, containing all connection information in a single string.

```text
mysql://root:[email protected]/forge?charset=UTF-8
```

--------------------------------

### Get a model's broadcast channel name with broadcastChannel

Source: https://laravel.com/framework/docs/8.x/broadcasting

Shows how to call the broadcastChannel method on a model instance to determine its channel name. For example, it returns 'App.Models.User.1' for an App\Models\User model with an id of 1.

```php
$user->broadcastChannel()
```

--------------------------------

### Navigate to a URI with visit method

Source: https://laravel.com/framework/docs/8.x/dusk

Shows how to navigate to a given URI within the application using the visit method.

```php
$browser->visit('/login');
```

--------------------------------

### List all proxied sites with proxies command

Source: https://laravel.com/framework/docs/8.x/valet

Use the 'proxies' command to list all site configurations that are currently proxied.

```bash
valet proxies
```

--------------------------------

### reduce: Reduce collection to a single value

Source: https://laravel.com/framework/docs/8.x/collections

Reduces the collection to a single value, passing the result of each iteration into the next. The example sums [1, 2, 3] to 6. The $carry starts as null on the first iteration.

```php
$collection = collect([1, 2, 3]);

$total = $collection->reduce(function ($carry, $item) {
    return $carry + $item;
});

// 6
```

--------------------------------

### Arr::last - Get last element passing truth test

Source: https://laravel.com/framework/docs/8.x/helpers

Returns the last element of an array that passes a given truth test. The example uses a callback to find the last value >= 150, which is 300.

```php
use Illuminate\Support\Arr;

$array = [100, 200, 300, 110];

$last = Arr::last($array, function ($value, $key) {
    return $value >= 150;
});

// 300
```

--------------------------------

### Facade vs helper function comparison

Source: https://laravel.com/framework/docs/8.x/facades

Shows the equivalence between the View facade and the view helper function.

```php
return Illuminate\Support\Facades\View::make('profile');

return view('profile');
```

--------------------------------

### Define an option shortcut in signature

Source: https://laravel.com/framework/docs/8.x/artisan

Shows how to assign a shortcut 'Q' to the --queue option using the '|' delimiter.

```php
mail:send {user} {--Q|queue}
```

--------------------------------

### Listener class with handle method for event discovery

Source: https://laravel.com/framework/docs/8.x/events

Example listener class that Laravel discovers by scanning for methods starting with 'handle'. The event is type-hinted in the method signature, and Laravel registers it as an event listener for that event.

```php
use App\Events\PodcastProcessed;

class SendPodcastNotification
{
    /**
     * Handle the given event.
     *
     * @param  \App\Events\PodcastProcessed  $event
     * @return void
     */
    public function handle(PodcastProcessed $event)
    {
        //
    }
}
```

--------------------------------

### diff() - Get values not present in another collection

Source: https://laravel.com/framework/docs/8.x/collections

Compares the collection against another collection or array based on values, returning values in the original that are not present in the given collection. The example returns [1, 3, 5].

```php
$collection = collect([1, 2, 3, 4, 5]);

$diff = $collection->diff([2, 4, 6, 8]);

$diff->all();

// [1, 3, 5]
```

--------------------------------

### Create subscription with trialUntil and DateTime

Source: https://laravel.com/framework/docs/8.x/billing

Use the trialUntil method to specify a DateTime instance for when the trial period should end.

```php
use Carbon\Carbon;

$user->newSubscription('default', 'price_monthly')
            ->trialUntil(Carbon::now()->addDays(10))
            ->create($paymentMethod);
```