til/docs/host/Laravel.md

Build

• webpack

Front End

• Vuejs

Back

• Laravel
  
  • Symfony Components
  • Laravel Nova
  • Laravel Horizon
  • Laravel Spark
  • Laravel Telescope
  • Laravel Cashier

Testing

• Laravel Dusk
  

Code

• Origin master https://code.davidawindham.com/david/laravel/
• Code master https://github.com/windhamdavid/laravel
• Upstream master https://github.com/laravel/laravel
  

Links

• Laravel Cheatsheet https://davidawindham.com/til/host/laravel.html
• Laravel Documentation https://laravel.com/docs/5.7/

References

• Laravel by the Numbers A unique analysis of data from Laravel Shift on over 8,000 Laravel apps.

Artisan

// shortend 'php artisan' to 'pa' in my .zshrc
// added tab completion for artisan

_laravel_get_command_list () {
	php artisan --raw --no-ansi list | sed "s/[[:space:]].*//g"
}

_laravel () {
  if [ -f artisan ]; then
    compadd `_laravel_get_command_list`
  fi
}

compdef _laravel artisan
compdef _laravel pa

#Alias
alias pa='php artisan'
alias pacache='php artisan cache:clear'
alias paroutes='php artisan route:list'
alias pavendor='php artisan vendor:publish'
// etc...

commonly used:

pa help
pa list
pa tinker
pa install
pa migrate
pa migrate:status
pa migrate:install
pa migrate:reset
pa migrate:rollback
pa migrate:refresh
pa migrate:fresh
pa db:seed
pa cache:clear
pa route:list

Artisan

// Added in 5.1.11:http://laravel.com/docs/5.1/authorization#creating-policies
php artisan make:policy PostPolicy
// Displays help for a given command
php artisan --help OR -h
// Do not output any message
php artisan --quiet OR -q
// Display this application version
php artisan --version OR -V
// Do not ask any interactive question
php artisan --no-interaction OR -n
// Force ANSI output
php artisan --ansi
// Disable ANSI output
php artisan --no-ansi
// The environment the command should run under
php artisan --env
// -v|vv|vvv Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug
php artisan --verbose
// Remove the compiled class file
php artisan clear-compiled
// Display the current framework environment
php artisan env
// Displays help for a command
php artisan help
// Lists commands
php artisan list
// Interact with your application
php artisan tinker
// Put the application into maintenance mode
php artisan down
// Bring the application out of maintenance mode
php artisan up
// Optimize the framework for better performance
// --force    Force the compiled class file to be written.
// --psr      Do not optimize Composer dump-autoload.
php artisan optimize [--force] [--psr]
// Serve the application on the PHP development server
php artisan serve
// Change the default port
php artisan serve --port 8080
// Get it to work outside localhost
php artisan serve --host 0.0.0.0
// Set the application namespace
php artisan app:name namespace
// Flush expired password reset tokens
php artisan auth:clear-resets
// Flush the application cache
php artisan cache:clear
// Create a migration for the cache database table
php artisan cache:table
// Create a cache file for faster configuration loading
php artisan config:cache
// Remove the configuration cache file
php artisan config:clear
// In program
$exitCode = Artisan::call('config:cache');
// Seed the database with records
// --class      The class name of the root seeder (default: "DatabaseSeeder")
// --database   The database connection to seed
// --force      Force the operation to run when in production.
php artisan db:seed [--class[="..."]] [--database[="..."]] [--force]

// Generate the missing events and handlers based on registration
php artisan event:generate

// Create a new command handler class
// --command      The command class the handler handles.
php artisan handler:command [--command="..."] name
// Create a new event handler class
// --event        The event class the handler handles.
// --queued       Indicates the event handler should be queued.
php artisan handler:event [--event="..."] [--queued] name

// Set the application key
php artisan key:generate

// By default, this creates a self-handling command that is not pushed to the queue.
// Pass this the --handler flag to generate a handler, and the --queued flag to make it queued.
php artisan make:command [--handler] [--queued] name
// Create a new Artisan command
//  --command     The terminal command that should be assigned. (default: "command:name")
make:console [--command[="..."]] name
// Create a new resourceful controller
// --plain      Generate an empty controller class.
php artisan make:controller [--plain] name
php artisan make:controller App\\Admin\\Http\\Controllers\\DashboardController
// Create a new event class
php artisan make:event name
// Create a new middleware class
php artisan make:middleware name
// Create a new migration file
// --create     The table to be created.
// --table      The table to migrate.
php artisan make:migration [--create[="..."]] [--table[="..."]] name
// Create a new Eloquent model class
php artisan make:model name
// Create a new service provider class
php artisan make:provider name
// Create a new form request class
php artisan make:request name
// Database migrations
// --database   The database connection to use.
// --force      Force the operation to run when in production.
// --path       The path of migrations files to be executed.
// --pretend    Dump the SQL queries that would be run.
// --seed       Indicates if the seed task should be re-run.
php artisan migrate [--database[="..."]] [--force] [--path[="..."]] [--pretend] [--seed]
// Create the migration repository
php artisan migrate:install [--database[="..."]]
// Create a new migration file
// --seeder     The class name of the root seeder.
php artisan migrate:refresh [--database[="..."]] [--force] [--seed] [--seeder[="..."]]
// Rollback all database migrations
// --pretend    Dump the SQL queries that would be run.
php artisan migrate:reset [--database[="..."]] [--force] [--pretend]
// Rollback the last database migration
php artisan migrate:rollback [--database[="..."]] [--force] [--pretend]
// Show a list of migrations up/down
php artisan migrate:status
// Create a migration for the queue jobs database table
php artisan queue:table
// Listen to a given queue
// --queue      The queue to listen on
// --delay      Amount of time to delay failed jobs (default: 0)
// --memory     The memory limit in megabytes (default: 128)
// --timeout    Seconds a job may run before timing out (default: 60)
// --sleep      Seconds to wait before checking queue for jobs (default: 3)
// --tries      Number of times to attempt a job before logging it failed (default: 0)
php artisan queue:listen [--queue[="..."]] [--delay[="..."]] [--memory[="..."]] [--timeout[="..."]] [--sleep[="..."]] [--tries[="..."]] [connection]
// List all of the failed queue jobs
php artisan queue:failed
// Create a migration for the failed queue jobs database table
php artisan queue:failed-table
// Flush all of the failed queue jobs
php artisan queue:flush
// Delete a failed queue job
php artisan queue:forget
// Restart queue worker daemons after their current job
php artisan queue:restart
// Retry a failed queue job(id: The ID of the failed job)
php artisan queue:retry id
// Subscribe a URL to an Iron.io push queue
// queue: The name of Iron.io queue.
// url: The URL to be subscribed.
// --type       The push type for the queue.
php artisan queue:subscribe [--type[="..."]] queue url
// Process the next job on a queue
// --queue      The queue to listen on
// --daemon     Run the worker in daemon mode
// --delay      Amount of time to delay failed jobs (default: 0)
// --force      Force the worker to run even in maintenance mode
// --memory     The memory limit in megabytes (default: 128)
// --sleep      Number of seconds to sleep when no job is available (default: 3)
// --tries      Number of times to attempt a job before logging it failed (default: 0)
php artisan queue:work [--queue[="..."]] [--daemon] [--delay[="..."]] [--force] [--memory[="..."]] [--sleep[="..."]] [--tries[="..."]] [connection]

// Create a route cache file for faster route registration
php artisan route:cache
// Remove the route cache file
php artisan route:clear
// List all registered routes
php artisan route:list

// Run the scheduled commands
php artisan schedule:run

// Create a migration for the session database table
php artisan session:table

// Publish any publishable assets from vendor packages
// --force        Overwrite any existing files.
// --provider     The service provider that has assets you want to publish.
// --tag          The tag that has assets you want to publish.
php artisan vendor:publish [--force] [--provider[="..."]] [--tag[="..."]]
php artisan tail [--path[="..."]] [--lines[="..."]] [connection]

Composer

composer

composer create-project laravel/laravel folder_name
composer install
composer update
composer dump-autoload [--optimize]
composer self-update
composer require [options] [--] [vendor/packages]...
              ```

___

### [Config](http://laravel.com/docs/configuration "Configuration Docs")

```php

Config::get('app.timezone');
//get with Default value
Config::get('app.timezone', 'UTC');
//set Configuration
Config::set('database.default', 'sqlite');
              ```

___

### [Route](http://laravel.com/docs/routing "Routing @ Laravel Docs")[](http://laravel.com/docs/helpers#routing "Routing Helpers @ Laravel Docs")

```php

Route::get('foo', function(){});
Route::get('foo', 'ControllerName@function');
Route::controller('foo', 'FooController');
              ```

##### RESTful Controllers[](http://laravel.com/docs/controllers#restful-resource-controllers "RESTful Controllers @ Laravel Docs")

```php

Route::resource('posts','PostsController');
//Specify a subset of actions to handle on the route
Route::resource('photo', 'PhotoController',['only' => ['index', 'show']]);
Route::resource('photo', 'PhotoController',['except' => ['update', 'destroy']]);
              ```

##### Triggering Errors[](http://laravel.com/docs/routing#throwing-404-errors "throwing-404-errors @ Laravel Docs")

```php

App::abort(404);
$handler->missing(...) in ErrorServiceProvider::boot();
throw new NotFoundHttpException;
              ```

##### Route Parameters[](http://laravel.com/docs/routing#route-parameters "RESTful Controllers @ Laravel Docs")

```php

Route::get('foo/{bar}', function($bar){});
Route::get('foo/{bar?}', function($bar = 'bar'){});
              ```

##### HTTP Verbs

```php

Route::any('foo', function(){});
Route::post('foo', function(){});
Route::put('foo', function(){});
Route::patch('foo', function(){});
Route::delete('foo', function(){});
// RESTful actions
Route::resource('foo', 'FooController');
// Registering A Route For Multiple Verbs
Route::match(['get', 'post'], '/', function(){});
              ```

##### Secure Routes(TBD)

```php

Route::get('foo', array('https', function(){}));
              ```

##### Route Constraints

```php

Route::get('foo/{bar}', function($bar){})
->where('bar', '[0-9]+');
Route::get('foo/{bar}/{baz}', function($bar, $baz){})
->where(array('bar' => '[0-9]+', 'baz' => '[A-Za-z]'))
              ```

```php

// Set a pattern to be used across routes
Route::pattern('bar', '[0-9]+')
              ```

##### HTTP Middleware[](http://laravel.com/docs/middleware "HTTP Middleware @ Laravel Docs")

```php

// Assigning Middleware To Routes
Route::get('admin/profile', ['middleware' => 'auth', function(){}]);
Route::get('admin/profile', function(){})->middleware('auth');
              ```

##### Named Routes

```php

Route::currentRouteName();
Route::get('foo/bar', array('as' => 'foobar', function(){}));
Route::get('user/profile', [
  'as' => 'profile', 'uses' => 'UserController@showProfile'
]);
Route::get('user/profile', 'UserController@showProfile')->name('profile');
$url = route('profile');
$redirect = redirect()->route('profile');
              ```

##### Route Prefixing

```php

Route::group(['prefix' => 'admin'], function()
{
  Route::get('users', function(){
      return 'Matches The "/admin/users" URL';
  });
});
              ```

##### Route Namespacing

```php

// This route group will carry the namespace 'Foo\Bar'
Route::group(array('namespace' => 'Foo\Bar'), function(){})
              ```

##### Sub-Domain Routing

```php

// {sub} will be passed to the closure
Route::group(array('domain' => '{sub}.example.com'), function(){});
              ```

___

### [Environment](http://laravel.com/docs/configuration#environment-configuration "Environment Configuration @ Laravel Docs")

```php

$environment = app()->environment();
$environment = App::environment();
$environment = $app->environment();
// The environment is local
if ($app->environment('local')){}
// The environment is either local OR staging...
if ($app->environment('local', 'staging')){}
              ```

___

### [Log](http://laravel.com/docs/errors#logging "Log @ Laravel Docs")

```php

// The logger provides the seven logging levels defined in RFC 5424:
// debug, info, notice, warning, error, critical, and alert.
Log::info('info');
Log::info('info',array('context'=>'additional info'));
Log::error('error');
Log::warning('warning');
// get monolog instance
Log::getMonolog();
// add listener
Log::listen(function($level, $message, $context) {});
              ```

##### Query Logging[](http://laravel.com/docs/database#query-logging "Log @ Laravel Docs")

```php

// enable the log
DB::connection()->enableQueryLog();
// get an array of the executed queries
DB::getQueryLog();
              ```

___

### [URL](http://laravel.com/api/5.1/Illuminate/Routing/UrlGenerator.html "UrlGenerator @ Laravel Docs") [](http://laravel.com/docs/helpers#urls "URL helper @ Laravel Docs")

```php

URL::full();
URL::current();
URL::previous();
URL::to('foo/bar', $parameters, $secure);
URL::action('NewsController@item', ['id'=>123]);
// need be in appropriate namespace
URL::action('Auth\AuthController@logout');
URL::action('FooController@method', $parameters, $absolute);
URL::route('foo', $parameters, $absolute);
URL::secure('foo/bar', $parameters);
URL::asset('css/foo.css', $secure);
URL::secureAsset('css/foo.css');
URL::isValidUrl('http://example.com');
URL::getRequest();
URL::setRequest($request);
              ```

___

### [Event](http://laravel.com/docs/events "Events @ Laravel Docs")

```php

Event::fire('foo.bar', array($bar));
// Register an event listener with the dispatcher.
// void listen(string|array $events, mixed $listener, int $priority)
Event::listen('App\Events\UserSignup', function($bar){});
Event::listen('foo.*', function($bar){});
Event::listen('foo.bar', 'FooHandler', 10);
Event::listen('foo.bar', 'BarHandler', 5);
// Stopping The Propagation Of An Event
// You may do so by returning false from your handler.
Event::listen('foor.bar', function($event){ return false; });
Event::subscribe('UserEventHandler');
              ```

___

### [DB](http://laravel.com/docs/5.1/database "Basic Database Usage @ Laravel Docs")

##### Basic Database Usage

```php

DB::connection('connection_name');
// Running A Select Query
$results = DB::select('select * from users where id = ?', [1]);
$results = DB::select('select * from users where id = :id', ['id' => 1]);
// Running A General Statement
DB::statement('drop table users');
// Listening For Query Events
DB::listen(function($sql, $bindings, $time){ code_here; });
// Database Transactions
DB::transaction(function()
{
  DB::table('users')->update(['votes' => 1]);
  DB::table('posts')->delete();
});
DB::beginTransaction();
DB::rollBack();
DB::commit();
              ```

##### Query Builder[](http://laravel.com/docs/5.1/queries "Query Builder @ Laravel Docs")

```php

// Retrieving All Rows From A Table
DB::table('name')->get();
// Chunking Results From A Table
DB::table('users')->chunk(100, function($users)
{
  foreach ($users as $user)
  {
      //
  }
});
// Retrieving A Single Row From A Table
$user = DB::table('users')->where('name', 'John')->first();
DB::table('name')->first();
// Retrieving A Single Column From A Row
$name = DB::table('users')->where('name', 'John')->pluck('name');
DB::table('name')->pluck('column');
// Retrieving A List Of Column Values
$roles = DB::table('roles')->lists('title');
$roles = DB::table('roles')->lists('title', 'name');
// Specifying A Select Clause
$users = DB::table('users')->select('name', 'email')->get();
$users = DB::table('users')->distinct()->get();
$users = DB::table('users')->select('name as user_name')->get();
// Adding A Select Clause To An Existing Query
$query = DB::table('users')->select('name');
$users = $query->addSelect('age')->get();
// Using Where Operators
$users = DB::table('users')->where('votes', '>', 100)->get();
$users = DB::table('users')
              ->where('votes', '>', 100)
              ->orWhere('name', 'John')
              ->get();
$users = DB::table('users')
              ->whereBetween('votes', [1, 100])->get();
$users = DB::table('users')
              ->whereNotBetween('votes', [1, 100])->get();
$users = DB::table('users')
              ->whereIn('id', [1, 2, 3])->get();
$users = DB::table('users')
              ->whereNotIn('id', [1, 2, 3])->get();
$users = DB::table('users')
              ->whereNull('updated_at')->get();
DB::table('name')->whereNotNull('column')->get();
// Dynamic Where Clauses
$admin = DB::table('users')->whereId(1)->first();
$john = DB::table('users')
              ->whereIdAndEmail(2, 'john@doe.com')
              ->first();
$jane = DB::table('users')
              ->whereNameOrAge('Jane', 22)
              ->first();
// Order By, Group By, And Having
$users = DB::table('users')
              ->orderBy('name', 'desc')
              ->groupBy('count')
              ->having('count', '>', 100)
              ->get();
DB::table('name')->orderBy('column')->get();
DB::table('name')->orderBy('column','desc')->get();
DB::table('name')->having('count', '>', 100)->get();
// Offset & Limit
$users = DB::table('users')->skip(10)->take(5)->get();
          ```

##### Joins[](http://laravel.com/docs/5.1/queries#joins "Joins @ Laravel Docs")

```php

// Basic Join Statement
DB::table('users')
          ->join('contacts', 'users.id', '=', 'contacts.user_id')
          ->join('orders', 'users.id', '=', 'orders.user_id')
          ->select('users.id', 'contacts.phone', 'orders.price')
          ->get();
// Left Join Statement
DB::table('users')
      ->leftJoin('posts', 'users.id', '=', 'posts.user_id')
      ->get();
// select * from users where name = 'John' or (votes > 100 and title <> 'Admin')
DB::table('users')
          ->where('name', '=', 'John')
          ->orWhere(function($query)
          {
              $query->where('votes', '>', 100)
                    ->where('title', '<>', 'Admin');
          })
          ->get();
          ```

##### Aggregates[](http://laravel.com/docs/5.1/queries#aggregates "Aggregates @ Laravel Docs")

```php

$users = DB::table('users')->count();
$price = DB::table('orders')->max('price');
$price = DB::table('orders')->min('price');
$price = DB::table('orders')->avg('price');
$total = DB::table('users')->sum('votes');
          ```

##### Raw Expressions[](http://laravel.com/docs/5.1/queries#raw-expressions "Raw Expressions @ Laravel Docs")

```php

$users = DB::table('users')
                   ->select(DB::raw('count(*) as user_count, status'))
                   ->where('status', '<>', 1)
                   ->groupBy('status')
                   ->get();
// return rows
DB::select('select * from users where id = ?', array('value'));
// return nr affected rows
DB::insert('insert into foo set bar=2');
DB::update('update foo set bar=2');
DB::delete('delete from bar');
// returns void
DB::statement('update foo set bar=2');
// raw expression inside a statement
DB::table('name')->select(DB::raw('count(*) as count, column2'))->get();
          ```

##### Inserts / Updates / Deletes / Unions / Pessimistic Locking

```php

// Inserts
DB::table('users')->insert(
  ['email' => 'john@example.com', 'votes' => 0]
);
$id = DB::table('users')->insertGetId(
  ['email' => 'john@example.com', 'votes' => 0]
);
DB::table('users')->insert([
  ['email' => 'taylor@example.com', 'votes' => 0],
  ['email' => 'dayle@example.com', 'votes' => 0]
]);
// Updates
DB::table('users')
          ->where('id', 1)
          ->update(['votes' => 1]);
DB::table('users')->increment('votes');
DB::table('users')->increment('votes', 5);
DB::table('users')->decrement('votes');
DB::table('users')->decrement('votes', 5);
DB::table('users')->increment('votes', 1, ['name' => 'John']);
// Deletes
DB::table('users')->where('votes', '<', 100)->delete();
DB::table('users')->delete();
DB::table('users')->truncate();
// Unions
// The unionAll() method is also available, and has the same method signature as union.
$first = DB::table('users')->whereNull('first_name');
$users = DB::table('users')->whereNull('last_name')->union($first)->get();
// Pessimistic Locking
DB::table('users')->where('votes', '>', 100)->sharedLock()->get();
DB::table('users')->where('votes', '>', 100)->lockForUpdate()->get();
              ```

___

### [Model](http://laravel.com/docs/eloquent "Eloquent @ Laravel Docs")

##### Basic Usage[](http://laravel.com/docs/5.1/eloquent#basic-usage "Basic Usage @ Laravel Docs")

```php

// Defining An Eloquent Model
class User extends Model {}
// generate Eloquent models
php artisan make:model User
// specify a custom table name
class User extends Model {
  protected $table = 'my_users';
}
          ```

##### More

```php

Model::create(array('key' => 'value'));
// Find first matching record by attributes or create
Model::firstOrCreate(array('key' => 'value'));
// Find first record by attributes or instantiate
Model::firstOrNew(array('key' => 'value'));
// Create or update a record matching attibutes, and fill with values
Model::updateOrCreate(array('search_key' => 'search_value'), array('key' => 'value'));
// Fill a model with an array of attributes, beware of mass assignment!
Model::fill($attributes);
Model::destroy(1);
Model::all();
Model::find(1);
// Find using dual primary key
Model::find(array('first', 'last'));
// Throw an exception if the lookup fails
Model::findOrFail(1);
// Find using dual primary key and throw exception if the lookup fails
Model::findOrFail(array('first', 'last'));
Model::where('foo', '=', 'bar')->get();
Model::where('foo', '=', 'bar')->first();
Model::where('foo', '=', 'bar')->exists();
// dynamic
Model::whereFoo('bar')->first();
// Throw an exception if the lookup fails
Model::where('foo', '=', 'bar')->firstOrFail();
Model::where('foo', '=', 'bar')->count();
Model::where('foo', '=', 'bar')->delete();
//Output raw query
Model::where('foo', '=', 'bar')->toSql();
Model::whereRaw('foo = bar and cars = 2', array(20))->get();
Model::on('connection-name')->find(1);
Model::with('relation')->get();
Model::all()->take(10);
Model::all()->skip(10);
// Default Eloquent sort is ascendant
Model::all()->orderBy('column');
Model::all()->orderBy('column','desc');
              ```

##### Soft Delete[](http://laravel.com/docs/5.1/eloquent#soft-deleting "Soft Deleting @ Laravel Docs")

```php

Model::withTrashed()->where('cars', 2)->get();
// Include the soft deleted models in the results
Model::withTrashed()->where('cars', 2)->restore();
Model::where('cars', 2)->forceDelete();
// Force the result set to only included soft deletes
Model::onlyTrashed()->where('cars', 2)->get();
              ```

##### Relationships

```php

// One To One - User::phone()
  return $this->hasOne('App\Phone', 'foreign_key', 'local_key');
// One To One - Phone::user(), The Inverse Of The Relation
return $this->belongsTo('App\User', 'foreign_key', 'other_key');

// One To Many - Post::comments()
return $this->hasMany('App\Comment', 'foreign_key', 'local_key');
//  One To Many - Comment::post()
return $this->belongsTo('App\Post', 'foreign_key', 'other_key');

// Many To Many - User::roles();
return $this->belongsToMany('App\Role', 'user_roles', 'user_id', 'role_id');
// Many To Many - Role::users();
return $this->belongsToMany('App\User');
// Many To Many - Retrieving Intermediate Table Columns
$role->pivot->created_at;
// Many To Many - Pivot table with extra attributes
return $this->belongsToMany('App\Role')->withPivot('column1', 'column2');
// Many To Many - Automatically maintained created_at and updated_at timestamps
return $this->belongsToMany('App\Role')->withTimestamps();

// Has Many Through - Country::posts(), A Country model have
// many Post models through an intermediate User model (User::country_id)
return $this->hasManyThrough('App\Post', 'App\User', 'country_id', 'user_id');

// Polymorphic Relations - Photo::imageable()
return $this->morphTo();
// Polymorphic Relations - Staff::photos()
return $this->morphMany('App\Photo', 'imageable');
// Polymorphic Relations - Product::photos()
return $this->morphMany('App\Photo', 'imageable');
// Polymorphic Relations - Register the morphMap in your AppServiceProvider
Relation::morphMap([
    'Post' => App\Post::class,
    'Comment' => App\Comment::class,
]);

// Many To Many Polymorphic Relations - Tables: posts,videos,tags,taggables
// Post::tags()
return $this->morphToMany('App\Tag', 'taggable');
// Video::tags()
return $this->morphToMany('App\Tag', 'taggable');
// Tag::posts()
return $this->morphedByMany('App\Post', 'taggable');
// Tag::videos()
return $this->morphedByMany('App\Video', 'taggable');

// Querying Relations
$user->posts()->where('active', 1)->get();
// Retrieve all posts that have at least one comment...
$posts = App\Post::has('comments')->get();
// Retrieve all posts that have three or more comments...
$posts = Post::has('comments', '>=', 3)->get();
// Retrieve all posts that have at least one comment with votes...
$posts = Post::has('comments.votes')->get();
// Retrieve all posts with at least one comment containing words like foo%
$posts = Post::whereHas('comments', function ($query) {
    $query->where('content', 'like', 'foo%');
})->get();

// Eager Loading
$books = App\Book::with('author')->get();
$books = App\Book::with('author', 'publisher')->get();
$books = App\Book::with('author.contacts')->get();

// Lazy Eager Loading
$books->load('author', 'publisher');

// Inserting Related Models
$comment = new App\Comment(['message' => 'A new comment.']);
$post->comments()->save($comment);
// save multiple related models
$post->comments()->saveMany([
    new App\Comment(['message' => 'A new comment.']),
    new App\Comment(['message' => 'Another comment.']),
]);
$post->comments()->create(['message' => 'A new comment.']);

// Updating a belongsTo relationship
$user->account()->associate($account);
$user->save();
$user->account()->dissociate();
$user->save();

// Inserting Related Models - Many To Many Relationships
$user->roles()->attach($roleId);
$user->roles()->attach($roleId, ['expires' => $expires]);
// Detach a single role from the user...
$user->roles()->detach($roleId);
// Detach all roles from the user...
$user->roles()->detach();
$user->roles()->detach([1, 2, 3]);
$user->roles()->attach([1 => ['expires' => $expires], 2, 3]);

// Any IDs that are not in the given array will be removed from the intermediate table.
$user->roles()->sync([1, 2, 3]);
// You may also pass additional intermediate table values with the IDs:
$user->roles()->sync([1 => ['expires' => true], 2, 3]);

              ```

##### Events

```php

Model::creating(function($model){});
Model::created(function($model){});
Model::updating(function($model){});
Model::updated(function($model){});
Model::saving(function($model){});
Model::saved(function($model){});
Model::deleting(function($model){});
Model::deleted(function($model){});
Model::observe(new FooObserver);
              ```

##### Eloquent Configuration

```php

// Disables mass assignment exceptions from being thrown from model inserts and updates
Eloquent::unguard();
// Renables any ability to throw mass assignment exceptions
Eloquent::reguard();
              ```

___

### [Pagination](http://laravel.com/docs/pagination "Pagination @ Laravel Docs")

```php

// Auto-Magic Pagination
Model::paginate(15);
Model::where('cars', 2)->paginate(15);
// "Next" and "Previous" only
Model::where('cars', 2)->simplePaginate(15);
// Manual Paginator
Paginator::make($items, $totalItems, $perPage);
// Print page navigators in view
$variable->links();
              ```

___

### [Lang](http://laravel.com/docs/localization "Localization @ Laravel Docs")

```php

App::setLocale('en');
Lang::get('messages.welcome');
Lang::get('messages.welcome', array('foo' => 'Bar'));
Lang::has('messages.welcome');
Lang::choice('messages.apples', 10);
// Lang::get alias
trans('messages.welcome');
              ```

___

### [File](http://laravel.com/api/5.1/Illuminate/Filesystem/Filesystem.html "Filesystem @ Laravel Docs")

```php

File::exists('path');
File::get('path');
File::getRemote('path');
// Get a file's contents by requiring it
File::getRequire('path');
// Require the given file once
File::requireOnce('path');
// Write the contents of a file
File::put('path', 'contents');
// Append to a file
File::append('path', 'data');
// Delete the file at a given path
File::delete('path');
// Move a file to a new location
File::move('path', 'target');
// Copy a file to a new location
File::copy('path', 'target');
// Extract the file extension from a file path
File::extension('path');
// Get the file type of a given file
File::type('path');
// Get the file size of a given file
File::size('path');
// Get the file's last modification time
File::lastModified('path');
// Determine if the given path is a directory
File::isDirectory('directory');
// Determine if the given path is writable
File::isWritable('path');
// Determine if the given path is a file
File::isFile('file');
// Find path names matching a given pattern.
File::glob($patterns, $flag);
// Get an array of all files in a directory.
File::files('directory');
// Get all of the files from the given directory (recursive).
File::allFiles('directory');
// Get all of the directories within a given directory.
File::directories('directory');
// Create a directory
File::makeDirectory('path',  $mode = 0777, $recursive = false);
// Copy a directory from one location to another
File::copyDirectory('directory', 'destination', $options = null);
// Recursively delete a directory
File::deleteDirectory('directory', $preserve = false);
// Empty the specified directory of all files and folders
File::cleanDirectory('directory');
              ```

___

### [UnitTest](http://laravel.com/docs/testing "Unit testing @ Laravel Docs")

##### Install and run

```php

// add to composer and update:
"phpunit/phpunit": "4.0.*"
// run tests (from project root)
./vendor/bin/phpunit
              ```

##### Asserts

```php

$this->assertTrue(true);
$this->assertEquals('foo', $bar);
$this->assertCount(1,$times);
$this->assertResponseOk();
$this->assertResponseStatus(403);
$this->assertRedirectedTo('foo');
$this->assertRedirectedToRoute('route.name');
$this->assertRedirectedToAction('Controller@method');
$this->assertViewHas('name');
$this->assertViewHas('age', $value);
$this->assertSessionHasErrors();
// Asserting the session has errors for a given key...
$this->assertSessionHasErrors('name');
// Asserting the session has errors for several keys...
$this->assertSessionHasErrors(array('name', 'age'));
$this->assertHasOldInput();
              ```

##### Calling routes

```php

$response = $this->call($method, $uri, $parameters, $files, $server, $content);
$response = $this->callSecure('GET', 'foo/bar');
$this->session(['foo' => 'bar']);
$this->flushSession();
$this->seed();
$this->seed($connection);
              ```

___

### [SSH](http://laravel.com/docs/ssh "SSH @ Laravel Docs")

##### Executing Commands

```php

SSH::run(array $commands);
SSH::into($remote)->run(array $commands); // specify remote, otherwise assumes default
SSH::run(array $commands, function($line)
{
  echo $line.PHP_EOL;
});
              ```

##### Tasks

```php

// define
SSH::define($taskName, array $commands);
// execute
SSH::task($taskName, function($line)
{
  echo $line.PHP_EOL;
});
              ```

##### SFTP Uploads

```php

SSH::put($localFile, $remotePath);
SSH::putString($string, $remotePath);
              ```

___

### [Schema](http://laravel.com/docs/schema "Schema Builder @ Laravel Docs")

```php

// Indicate that the table needs to be created
Schema::create('table', function($table)
{
  $table->increments('id');
});
// Specify a Connection
Schema::connection('foo')->create('table', function($table){});
// Rename the table to a given name
Schema::rename($from, $to);
// Indicate that the table should be dropped
Schema::drop('table');
// Indicate that the table should be dropped if it exists
Schema::dropIfExists('table');
// Determine if the given table exists
Schema::hasTable('table');
// Determine if the given table has a given column
Schema::hasColumn('table', 'column');
// Update an existing table
Schema::table('table', function($table){});
// Indicate that the given columns should be renamed
$table->renameColumn('from', 'to');
// Indicate that the given columns should be dropped
$table->dropColumn(string|array);
// The storage engine that should be used for the table
$table->engine = 'InnoDB';
// Only work on MySQL
$table->string('name')->after('email');
              ```

##### Indexes

```php

$table->string('column')->unique();
$table->primary('column');
// Creates a dual primary key
$table->primary(array('first', 'last'));
$table->unique('column');
$table->unique('column', 'key_name');
// Creates a dual unique index
$table->unique(array('first', 'last'));
$table->unique(array('first', 'last'), 'key_name');
$table->index('column');
$table->index('column', 'key_name');
// Creates a dual index
$table->index(array('first', 'last'));
$table->index(array('first', 'last'), 'key_name');
$table->dropPrimary(array('column'));
$table->dropPrimary('table_column_primary');
$table->dropUnique(array('column'));
$table->dropUnique('table_column_unique');
$table->dropIndex(array('column'));
$table->dropIndex('table_column_index');
              ```

##### Foreign Keys

```php

$table->foreign('user_id')->references('id')->on('users');
$table->foreign('user_id')->references('id')->on('users')->onDelete('cascade'|'restrict'|'set null'|'no action');
$table->foreign('user_id')->references('id')->on('users')->onUpdate('cascade'|'restrict'|'set null'|'no action');
$table->dropForeign(array('user_id'));
$table->dropForeign('posts_user_id_foreign');
              ```

##### Column Types

```php

// Increments
$table->increments('id');
$table->bigIncrements('id');

// Numbers
$table->integer('votes');
$table->tinyInteger('votes');
$table->smallInteger('votes');
$table->mediumInteger('votes');
$table->bigInteger('votes');
$table->float('amount');
$table->double('column', 15, 8);
$table->decimal('amount', 5, 2);

//String and Text
$table->char('name', 4);
$table->string('email');
$table->string('name', 100);
$table->text('description');
$table->mediumText('description');
$table->longText('description');

//Date and Time
$table->date('created_at');
$table->dateTime('created_at');
$table->time('sunrise');
$table->timestamp('added_on');
// Adds created_at and updated_at columns
$table->timestamps();
$table->nullableTimestamps();

// Others
$table->binary('data');
$table->boolean('confirmed');
// Adds deleted_at column for soft deletes
$table->softDeletes();
$table->enum('choices', array('foo', 'bar'));
// Adds remember_token as VARCHAR(100) NULL
$table->rememberToken();
// Adds INTEGER parent_id and STRING parent_type
$table->morphs('parent');
->nullable()
->default($value)
->unsigned()
              ```

___

### [Input](http://laravel.com/docs/requests "Input @ Laravel Docs")

```php

Input::get('key');
// Default if the key is missing
Input::get('key', 'default');
Input::has('key');
Input::all();
// Only retrieve 'foo' and 'bar' when getting input
Input::only('foo', 'bar');
// Disregard 'foo' when getting input
Input::except('foo');
Input::flush();
              ```

##### Session Input (flash)

```php

// Flash input to the session
Input::flash();
// Flash only some of the input to the session
Input::flashOnly('foo', 'bar');
// Flash only some of the input to the session
Input::flashExcept('foo', 'baz');
// Retrieve an old input item
Input::old('key','default_value');
              ```

##### Files

```php

// Use a file that's been uploaded
Input::file('filename');
// Determine if a file was uploaded
Input::hasFile('filename');
// Access file properties
Input::file('name')->getRealPath();
Input::file('name')->getClientOriginalName();
Input::file('name')->getClientOriginalExtension();
Input::file('name')->getSize();
Input::file('name')->getMimeType();
// Move an uploaded file
Input::file('name')->move($destinationPath);
// Move an uploaded file
Input::file('name')->move($destinationPath, $fileName);
              ```

___

### [Cache](http://laravel.com/docs/cache "Cache @ Laravel Docs")

```php

Cache::put('key', 'value', $minutes);
Cache::add('key', 'value', $minutes);
Cache::forever('key', 'value');
Cache::remember('key', $minutes, function(){ return 'value' });
Cache::rememberForever('key', function(){ return 'value' });
Cache::forget('key');
Cache::has('key');
Cache::get('key');
Cache::get('key', 'default');
Cache::get('key', function(){ return 'default'; });
Cache::tags('my-tag')->put('key','value', $minutes);
Cache::tags('my-tag')->has('key');
Cache::tags('my-tag')->get('key');
Cache::tags('my-tag')->forget('key');
Cache::tags('my-tag')->flush();
Cache::increment('key');
Cache::increment('key', $amount);
Cache::decrement('key');
Cache::decrement('key', $amount);
Cache::section('group')->put('key', $value);
Cache::section('group')->get('key');
Cache::section('group')->flush();
              ```

___

### [Cookie](http://laravel.com/docs/requests#cookies "Cookies @ Laravel Docs")

```php

Cookie::get('key');
Cookie::get('key', 'default');
// Create a cookie that lasts for ever
Cookie::forever('key', 'value');
// Create a cookie that lasts N minutes
Cookie::make('key', 'value', 'minutes');
// Set a cookie before a response has been created
Cookie::queue('key', 'value', 'minutes');
// Forget cookie
Cookie::forget('key');
// Send a cookie with a response
$response = Response::make('Hello World');
// Add a cookie to the response
$response->withCookie(Cookie::make('name', 'value', $minutes));
              ```

___

### [Session](http://laravel.com/docs/session "Session @ Laravel Docs")

```php

Session::get('key');
// Returns an item from the session
Session::get('key', 'default');
Session::get('key', function(){ return 'default'; });
// Get the session ID
Session::getId();
// Put a key / value pair in the session
Session::put('key', 'value');
// Push a value into an array in the session
Session::push('foo.bar','value');
// Returns all items from the session
Session::all();
// Checks if an item is defined
Session::has('key');
// Remove an item from the session
Session::forget('key');
// Remove all of the items from the session
Session::flush();
// Generate a new session identifier
Session::regenerate();
// Flash a key / value pair to the session
Session::flash('key', 'value');
// Reflash all of the session flash data
Session::reflash();
// Reflash a subset of the current flash data
Session::keep(array('key1', 'key2'));
              ```

___

### [Request](http://laravel.com/docs/requests "Requests @ Laravel Docs")

```php

// url: http://xx.com/aa/bb
Request::url();
// path: /aa/bb
Request::path();
// getRequestUri: /aa/bb/?c=d
Request::getRequestUri();
// Returns user's IP
Request::ip();
// getUri: http://xx.com/aa/bb/?c=d
Request::getUri();
// getQueryString: c=d
Request::getQueryString();
// Get the port scheme of the request (e.g., 80, 443, etc.)
Request::getPort();
// Determine if the current request URI matches a pattern
Request::is('foo/*');
// Get a segment from the URI (1 based index)
Request::segment(1);
// Retrieve a header from the request
Request::header('Content-Type');
// Retrieve a server variable from the request
Request::server('PATH_INFO');
// Determine if the request is the result of an AJAX call
Request::ajax();
// Determine if the request is over HTTPS
Request::secure();
// Get the request method
Request::method();
// Checks if the request method is of specified type
Request::isMethod('post');
// Get raw POST data
Request::instance()->getContent();
// Get requested response format
Request::format();
// true if HTTP Content-Type header contains */json
Request::isJson();
// true if HTTP Accept header is application/json
Request::wantsJson();

              ```

___

### [Response](http://laravel.com/docs/responses "Responses @ Laravel Docs")

```php

return Response::make($contents);
return Response::make($contents, 200);
return Response::json(array('key' => 'value'));
return Response::json(array('key' => 'value'))
->setCallback(Input::get('callback'));
return Response::download($filepath);
return Response::download($filepath, $filename, $headers);
// Create a response and modify a header value
$response = Response::make($contents, 200);
$response->header('Content-Type', 'application/json');
return $response;
// Attach a cookie to a response
return Response::make($content)
->withCookie(Cookie::make('key', 'value'));
              ```

___

### [Redirect](http://laravel.com/docs/responses#redirects "Redirects @ Laravel Docs")

```php

return Redirect::to('foo/bar');
return Redirect::to('foo/bar')->with('key', 'value');
return Redirect::to('foo/bar')->withInput(Input::get());
return Redirect::to('foo/bar')->withInput(Input::except('password'));
return Redirect::to('foo/bar')->withErrors($validator);
// Create a new redirect response to the previous location
return Redirect::back();
// Create a new redirect response to a named route
return Redirect::route('foobar');
return Redirect::route('foobar', array('value'));
return Redirect::route('foobar', array('key' => 'value'));
// Create a new redirect response to a controller action
return Redirect::action('FooController@index');
return Redirect::action('FooController@baz', array('value'));
return Redirect::action('FooController@baz', array('key' => 'value'));
// If intended redirect is not defined, defaults to foo/bar.
return Redirect::intended('foo/bar');
              ```

___

### [Container](http://laravel.com/docs/container "Service Container @ Laravel Docs")

```php

App::bind('foo', function($app){ return new Foo; });
App::make('foo');
// If this class exists, it's returned
App::make('FooBar');
// Register a shared binding in the container
App::singleton('foo', function(){ return new Foo; });
// Register an existing instance as shared in the container
App::instance('foo', new Foo);
// Register a binding with the container
App::bind('FooRepositoryInterface', 'BarRepository');
// Register a service provider with the application
App::register('FooServiceProvider');
// Listen for object resolution
App::resolving(function($object){});
              ```

___

### Security

##### Hashing[](http://laravel.com/docs/hashing "Hashing @ Laravel Docs")

```php

Hash::make('secretpassword');
Hash::check('secretpassword', $hashedPassword);
Hash::needsRehash($hashedPassword);
              ```

##### Encryption

```php

Crypt::encrypt('secretstring');
Crypt::decrypt($encryptedString);
Crypt::setMode('ctr');
Crypt::setCipher($cipher);
              ```

___

### Auth

##### Authentication[](http://laravel.com/docs/authentication "Authentication @ Laravel Docs")

```php

// Determine if the current user is authenticated
Auth::check();
// Get the currently authenticated user
Auth::user();
// Get the ID of the currently authenticated user
Auth::id();
// Attempt to authenticate a user using the given credentials
Auth::attempt(array('email' => $email, 'password' => $password));
// 'Remember me' by passing true to Auth::attempt()
Auth::attempt($credentials, true);
// Log in for a single request
Auth::once($credentials);
// Log a user into the application
Auth::login(User::find(1));
// Log the given user ID into the application
Auth::loginUsingId(1);
// Log the user out of the application
Auth::logout();
// Validate a user's credentials
Auth::validate($credentials);
// Attempt to authenticate using HTTP Basic Auth
Auth::basic('username');
// Perform a stateless HTTP Basic login attempt
Auth::onceBasic();
// Send a password reminder to a user
Password::remind($credentials, function($message, $user){});
              ```

##### Authorization[](http://laravel.com/docs/5.1/authorization "Authorization @ Laravel Docs")

```php

// Define abilities
Gate::define('update-post', 'Class@method');
Gate::define('update-post', function ($user, $post) {...});
// Passing multiple argument
Gate::define('delete-comment', function ($user, $post, $comment) {});

// Check abilities
Gate::denies('update-post', $post);
Gate::allows('update-post', $post);
Gate::check('update-post', $post);
// Specified a user for checking
Gate::forUser($user)->allows('update-post', $post);
// Through User model, using Authorizable trait
User::find(1)->can('update-post', $post);
User::find(1)->cannot('update-post', $post);

// Intercepting Authorization Checks
Gate::before(function ($user, $ability) {});
Gate::after(function ($user, $ability) {});

// Chekcing in Blade template
@can('update-post', $post)
@endcan
// with else
@can('update-post', $post)
@else
@endcan

// Generate a Policy
php artisan make:policy PostPolicy
// `policy` helper function
policy($post)->update($user, $post)

// Controller Authorization
$this->authorize('update', $post);
// for $user
$this->authorizeForUser($user, 'update', $post);

                      ```

___

### [Mail](http://laravel.com/docs/mail "Mail @ Laravel Docs")

```php

Mail::send('email.view', $data, function($message){});
Mail::send(array('html.view', 'text.view'), $data, $callback);
Mail::queue('email.view', $data, function($message){});
Mail::queueOn('queue-name', 'email.view', $data, $callback);
Mail::later(5, 'email.view', $data, function($message){});
// Write all email to logs instead of sending
Mail::pretend();
              ```

##### Messages

```php

// These can be used on the $message instance passed into Mail::send() or Mail::queue()
$message->from('email@example.com', 'Mr. Example');
$message->sender('email@example.com', 'Mr. Example');
$message->returnPath('email@example.com');
$message->to('email@example.com', 'Mr. Example');
$message->cc('email@example.com', 'Mr. Example');
$message->bcc('email@example.com', 'Mr. Example');
$message->replyTo('email@example.com', 'Mr. Example');
$message->subject('Welcome to the Jungle');
$message->priority(2);
$message->attach('foo\bar.txt', $options);
// This uses in-memory data as attachments
$message->attachData('bar', 'Data Name', $options);
// Embed a file in the message and get the CID
$message->embed('foo\bar.txt');
$message->embedData('foo', 'Data Name', $options);
// Get the underlying Swift Message instance
$message->getSwiftMessage();
              ```

___

### [Queue](http://laravel.com/docs/queues "Queues @ Laravel Docs")

```php

Queue::push('SendMail', array('message' => $message));
Queue::push('SendEmail@send', array('message' => $message));
Queue::push(function($job) use $id {});
// Same payload to multiple workers
Queue::bulk(array('SendEmail', 'NotifyUser'), $payload);
// Starting the queue listener
php artisan queue:listen
php artisan queue:listen connection
php artisan queue:listen --timeout=60
// Process only the first job on the queue
php artisan queue:work
// Start a queue worker in daemon mode
php artisan queue:work --daemon
// Create migration file for failed jobs
php artisan queue:failed-table
// Listing failed jobs
php artisan queue:failed
// Delete failed job by id
php artisan queue:forget 5
// Delete all failed jobs
php artisan queue:flush
              ```

___

### [Validation](http://laravel.com/docs/validation "Validation @ Laravel Docs")

```php

Validator::make(
array('key' => 'Foo'),
array('key' => 'required|in:Foo')
);
Validator::extend('foo', function($attribute, $value, $params){});
Validator::extend('foo', 'FooValidator@validate');
Validator::resolver(function($translator, $data, $rules, $msgs)
{
return new FooValidator($translator, $data, $rules, $msgs);
});
              ```

##### Rules

```php

accepted
active_url
after:YYYY-MM-DD
before:YYYY-MM-DD
alpha
alpha_dash
alpha_num
array
between:1,10
confirmed
date
date_format:YYYY-MM-DD
different:fieldname
digits:value
digits_between:min,max
boolean
email
exists:table,column
image
in:foo,bar,...
not_in:foo,bar,...
integer
numeric
ip
max:value
min:value
mimes:jpeg,png
regex:[0-9]
required
required_if:field,value
required_with:foo,bar,...
required_with_all:foo,bar,...
required_without:foo,bar,...
required_without_all:foo,bar,...
same:field
size:value
timezone
unique:table,column,except,idColumn
url

              ```

___

### [View](http://laravel.com/docs/views "Views @ Laravel Docs")

```php

View::make('path/to/view');
View::make('foo/bar')->with('key', 'value');
View::make('foo/bar')->withKey('value');
View::make('foo/bar', array('key' => 'value'));
View::exists('foo/bar');
// Share a value across all views
View::share('key', 'value');
// Nesting views
View::make('foo/bar')->nest('name', 'foo/baz', $data);
// Register a view composer
View::composer('viewname', function($view){});
//Register multiple views to a composer
View::composer(array('view1', 'view2'), function($view){});
// Register a composer class
View::composer('viewname', 'FooComposer');
View::creator('viewname', function($view){});
              ```

___

### [Blade](http://laravel.com/docs/templates#blade-templating "Blade Templating @ Laravel Docs")

```php


// Show a section in a template
@yield('name')
@extends('layout.name')
// Begin a section
@section('name')
// End a section
@stop
// End a section and yield
@section('sidebar')
@show
@parent

@include('view.name')
@include('view.name', array('key' => 'value'));
@lang('messages.name')
@choice('messages.name', 1);

@if
@else
@elseif
@endif

@unless
@endunless

@for
@endfor

@foreach
@endforeach

@while
@endwhile

//forelse 4.2 feature
@forelse($users as $user)
@empty
@endforelse

// Echo content
{{ $var }}
// Echo escaped content
{{{ $var }}}
// Echo unescaped content; 5.0 feature
{!! $var !!}
{{-- Blade Comment --}}
// Echoing Data After Checking For Existence
{{{ $name or 'Default' }}}
// Displaying Raw Text With Curly Braces
@{{ This will not be processed by Blade }}

---

Form

```php

Form::open(array('url' => 'foo/bar', 'method' => 'PUT')); Form::open(array('route' => 'foo.bar')); Form::open(array('route' => array('foo.bar', $parameter))); Form::open(array('action' => 'FooController@method')); Form::open(array('action' => array('FooController@method', $parameter))); Form::open(array('url' => 'foo/bar', 'files' => true)); Form::close(); Form::token(); Form::model($foo, array('route' => array('foo.bar', $foo->bar)));

          ```

Form Elements

```php

Form::label('id', 'Description'); Form::label('id', 'Description', array('class' => 'foo')); Form::text('name'); Form::text('name', $value); Form::text('name', $value, array('class' => 'name')); Form::textarea('name'); Form::textarea('name', $value); Form::textarea('name', $value, array('class' => 'name')); Form::hidden('foo', $value); Form::password('password'); Form::password('password', array('placeholder' => 'Password')); Form::email('name', $value, array()); Form::file('name', array('class' => 'name')); Form::checkbox('name', 'value'); // Generating a checkbox that is checked Form::checkbox('name', 'value', true, array('class' => 'name')); Form::radio('name', 'value'); // Generating a radio input that is selected Form::radio('name', 'value', true, array('class' => 'name')); Form::select('name', array('key' => 'value')); Form::select('name', array('key' => 'value'), 'key', array('class' => 'name')); Form::selectRange('range', 1, 10); Form::selectYear('year', 2011, 2015); Form::selectMonth('month'); Form::submit('Submit!', array('class' => 'name')); Form::button('name', array('class' => 'name')); Form::macro('fooField', function() { return ''; }); Form::fooField();

          ```

---

HTML

```php

HTML::macro('name', function(){}); // Convert an HTML string to entities HTML::entities($value); // Convert entities to HTML characters HTML::decode($value); // Generate a link to a JavaScript file HTML::script($url, $attributes); // Generate a link to a CSS file HTML::style($url, $attributes); // Generate an HTML image element HTML::image($url, $alt, $attributes); // Generate a HTML link HTML::link($url, 'title', $attributes, $secure); // Generate a HTTPS HTML link HTML::secureLink($url, 'title', $attributes); // Generate a HTML link to an asset HTML::linkAsset($url, 'title', $attributes, $secure); // Generate a HTTPS HTML link to an asset HTML::linkSecureAsset($url, 'title', $attributes); // Generate a HTML link to a named route HTML::linkRoute($name, 'title', $parameters, $attributes); // Generate a HTML link to a controller action HTML::linkAction($action, 'title', $parameters, $attributes); // Generate a HTML link to an email address HTML::mailto($email, 'title', $attributes); // Obfuscate an e-mail address to prevent spam-bots from sniffing it HTML::email($email); // Generate an ordered list of items HTML::ol($list, $attributes); // Generate an un-ordered list of items HTML::ul($list, $attributes); // Create a listing HTML element HTML::listing($type, $list, $attributes); // Create the HTML for a listing element HTML::listingElement($key, $type, $value); // Create the HTML for a nested listing attribute HTML::nestedListing($key, $type, $value); // Build an HTML attribute string from an array HTML::attributes($attributes); // Build a single attribute element HTML::attributeElement($key, $value); // Obfuscate a string to prevent spam-bots from sniffing it HTML::obfuscate($value);

          ```

---

String

```php

// Transliterate a UTF-8 value to ASCII Str::ascii($value) Str::camel($value) Str::contains($haystack, $needle) Str::endsWith($haystack, $needles) // Cap a string with a single instance of a given value. Str::finish($value, $cap) Str::is($pattern, $value) Str::length($value) Str::limit($value, $limit = 100, $end = '...') Str::lower($value) Str::words($value, $words = 100, $end = '...') Str::plural($value, $count = 2) // Generate a more truly "random" alpha-numeric string. Str::random($length = 16) // Generate a "random" alpha-numeric string. Str::quickRandom($length = 16) Str::upper($value) Str::title($value) Str::singular($value) Str::slug($title, $separator = '-') Str::snake($value, $delimiter = '_') Str::startsWith($haystack, $needles) // Convert a value to studly caps case. Str::studly($value) Str::macro($name, $macro)

          ```

---

Helper

Arrays

```php

// adds a given key / value pair to the array if the // given key doesn't already exist in the array array_add($array, 'key', 'value'); // collapse an array of arrays into a single array array_collapse($array); // Divide an array into two arrays. One with keys and the other with values array_divide($array); // Flatten a multi-dimensional associative array with dots array_dot($array); // Get all of the given array except for a specified array of items array_except($array, array('key')); // Return the first element in an array passing a given truth test array_first($array, function($key, $value){}, $default); // Strips keys from the array array_flatten($array); // Remove one or many array items from a given array using "dot" notation array_forget($array, 'foo'); // Dot notation array_forget($array, 'foo.bar'); // Get an item from an array using "dot" notation array_get($array, 'foo', 'default'); array_get($array, 'foo.bar', 'default'); // Checks that a given item exists in an array using "dot" notation array_has($array, 'products.desk'); // Get a subset of the items from the given array array_only($array, array('key')); // Return array of key => values array_pluck($array, 'key'); // Return and remove 'key' from array array_pull($array, 'key'); // Set an array item to a given value using "dot" notation array_set($array, 'key', 'value'); // Dot notation array_set($array, 'key.subkey', 'value'); // Sorts the array by the results of the given Closure array_sort($array, function(){}); // Recursively sorts the array using the sort function array_sort_recursive(); // Filters the array using the given Closure array_where(); // First element of an array head($array); // Last element of an array last($array);

          ```

Paths

```php

// Fully qualified path to the app directory app_path(); // Get the path to the public folder base_path(); // Fully qualified path to the application configuration directory config_path(); // Fully qualified path to the application's database directory database_path(); // Gets the path to the versioned Elixir file: elixir(); // Fully qualified path to the public directory public_path(); // Get the path to the storage folder storage_path();

          ```

Strings

```php

// Convert a value to camel case camel_case($value); // Get the class "basename" of the given object / class class_basename($class); // Escape a string e(''); // Determine if a given string starts with a given substring starts_with('Foo bar.', 'Foo'); // Determine if a given string ends with a given substring ends_with('Foo bar.', 'bar.'); // Convert a string to snake case snake_case('fooBar'); // Limits the number of characters in a string str_limit(); // Determine if a given string contains a given substring str_contains('Hello foo bar.', 'foo'); // Result: foo/bar/ str_finish('foo/bar', '/'); str_is('foo*', 'foobar'); str_plural('car'); str_random(25); str_singular('cars'); str_slug("Laravel 5 Framework", "-"); // Result: FooBar studly_case('foo_bar'); trans('foo.bar'); trans_choice('foo.bar', $count);

          ```

URLs and Links

```php

action('FooController@method', $parameters); // HTML Link asset('img/photo.jpg', $title, $attributes); // HTTPS link secure_asset('img/photo.jpg', $title, $attributes); route($route, $parameters, $absolute = true); url('path', $parameters = array(), $secure = null);

          ```

Miscellaneous

```php

// Authenticator instance (Auth) auth()->user(); // Generates a redirect response to the user's previous location back(); // Hashes the given value using Bcrypt (Hash) bcrypt('my-secret-password'); // Creates a collection instance from the supplied items collect(['taylor', 'abigail']); // Gets the value of a configuration variable config('app.timezone', $default); // Generates an HTML hidden input field containing the value of the CSRF token {!! csrf_field() !!} // Retrieves the value of the current CSRF token $token = csrf_token(); // Dumps the given variable and ends execution of the script dd($value); // Gets the value of an environment variable or returns a default value $env = env('APP_ENV'); $env = env('APP_ENV', 'production'); // Dispatches the given event to its listeners: event(new UserRegistered($user)); // Creates a model factory builder for a given class $user = factory(App\User::class)->make(); // Generates an HTML hidden input field containing the spoofed value of the form's HTTP verb {!! method_field('delete') !!} // Retrieves an old input value flashed into the session $value = old('value'); $value = old('value', 'default'); // Returns an instance of the redirector to do redirects: return redirect('/home'); // Returns the current request instance or obtains an input item $value = request('key', $default = null) // Creates a response instance or obtains an instance of the response factory return response('Hello World', 200, $headers); // Used to get / set a session value $value = session('key'); $value = session()->get('key'); session()->put('key', $value); // Will simply return the value it is given. value(function(){ return 'bar'; }); // Retrieves a view instance return view('auth.login'); // Returns the value it is given $value = with(new Foo)->work();

          ```

---

Collection

```php

// Creating Collections collect([1, 2, 3]); // Simply returns the underlying array represented by the collection: $collection->all(); // Returns the average of all items in the collection: $collection->avg(); // Breaks the collection into multiple, smaller collections of a given size: $collection->chunk(4); // Collapses a collection of arrays into a flat collection: $collection->collapse(); // Determines whether the collection contains a given item: $collection->contains('New York'); // Returns the total number of items in the collection: $collection->count(); // Iterates over the items in the collection and passes each item to a given callback: $collection = $collection->each(function ($item, $key) { }); // Creates a new collection consisting of every n-th element: $collection->every(4); // Pass offset as the second argument: $collection->every(4, 1); // Returns all items in the collection except for those with the specified keys: $collection->except(['price', 'discount']); // Filters the collection by a given callback: $filtered = $collection->filter(function ($item) {

return $item > 2;

}); // Returns the first element in the collection that passes a given truth test: collect([1, 2, 3, 4])->first(function ($key, $value) {

return $value > 2;

}); // Flattens a multi-dimensional collection into a single dimension: $flattened = $collection->flatten(); // Swaps the collection's keys with their corresponding values: $flipped = $collection->flip(); // Removes an item from the collection by its key: $collection->forget('name'); // Returns a new collection containing the items: $chunk = $collection->forPage(2, 3); // Returns the item at a given key. If the key does not exist, null is returned: $value = $collection->get('name'); // Groups the collection's items by a given key: $grouped = $collection->groupBy('account_id'); // Determines if a given key exists in the collection: $collection->has('email'); // Joins the items in a collection: $collection->implode('product', ', '); // Removes any values that are not present in the given array or collection: $intersect = $collection->intersect(['Desk', 'Chair', 'Bookcase']); // Returns true if the collection is empty: collect([])->isEmpty(); // Keys the collection by the given key: $keyed = $collection->keyBy('product_id'); // Pass a callback, which should return the value to key the collection by: $keyed = $collection->keyBy(function ($item) {

return strtoupper($item['product_id']);

}); // Returns all of the collection's keys: $keys = $collection->keys(); // Returns the last element in the collection: $collection->last(); // Iterates through the collection and passes each value to the given callback: $multiplied = $collection->map(function ($item, $key) {

return $item * 2;

}); // Return the maximum value of a given key: $max = collect([['foo' => 10], ['foo' => 20]])->max('foo'); $max = collect([1, 2, 3, 4, 5])->max(); // Merges the given array into the collection: $merged = $collection->merge(['price' => 100, 'discount' => false]); // Return the minimum value of a given key: $min = collect([['foo' => 10], ['foo' => 20]])->min('foo'); $min = collect([1, 2, 3, 4, 5])->min(); // Returns the items in the collection with the specified keys: $filtered = $collection->only(['product_id', 'name']); // Retrieves all of the collection values for a given key: $plucked = $collection->pluck('name'); // Removes and returns the last item from the collection: $collection->pop(); // Adds an item to the beginning of the collection: $collection->prepend(0); // Pass a second argument to set the key of the prepended item: $collection->prepend(0, 'zero'); // Removes and returns an item from the collection by its key: $collection->pull('name'); // Appends an item to the end of the collection: $collection->push(5); // Sets the given key and value in the collection: $collection->put('price', 100); // Returns a random item from the collection: $collection->random(); // Pass an integer to random. If that integer is more than 1, a collection of items is returned: $random = $collection->random(3); // Reduces the collection to a single value: $total = $collection->reduce(function ($carry, $item) {

return $carry + $item;

}); // Filters the collection using the given callback: $filtered = $collection->reject(function ($item) {

return $item > 2;

}); // Reverses the order of the collection's items: $reversed = $collection->reverse(); // Searches the collection for the given value and returns its key if found: $collection->search(4); // Removes and returns the first item from the collection: $collection->shift(); // Randomly shuffles the items in the collection: $shuffled = $collection->shuffle(); // Returns a slice of the collection starting at the given index: $slice = $collection->slice(4); // Sorts the collection: $sorted = $collection->sort(); // Sorts the collection by the given key: $sorted = $collection->sortBy('price'); // Removes and returns a slice of items starting at the specified index: $chunk = $collection->splice(2); // Returns the sum of all items in the collection: collect([1, 2, 3, 4, 5])->sum(); // Returns a new collection with the specified number of items: $chunk = $collection->take(3); // Converts the collection into a plain PHP array: $collection->toArray(); // Converts the collection into JSON: $collection->toJson(); // Iterates over the collection: $collection->transform(function ($item, $key) {

return $item * 2;

}); // Returns all of the unique items in the collection: $unique = $collection->unique(); // Returns a new collection with the keys reset to consecutive integers: $values = $collection->values(); // Filters the collection by a given key / value pair: $filtered = $collection->where('price', 100); // Merges together the values of the given array with the values of the collection: $zipped = $collection->zip([100, 200]);

            ```