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Technical Articles

PHP Framework

How to connect Laravel to a database

Configurethe.envfilewithcorrectDB_CONNECTION,DB_HOST,DB_PORT,DB_DATABASE,DB_USERNAME,andDB_PASSWORDvalues;2.Verifythatconfig/database.phpusestheseenvironmentvariablesviaenv()calls;3.TesttheconnectionusingphpartisantinkerwithDB::connection()->getPd

Aug 20, 2025 am 09:00 AM

How to use dependency injection in Laravel

DependencyinjectioninLaravelallowsautomaticresolutionofclassdependenciesviatheservicecontainer,promotingclean,testable,andmaintainablecode.2.Constructorinjectioniscommonlyusedincontrollers,whereLaravelautomaticallyinjectstype-hinteddependencieslikere

Aug 20, 2025 am 08:51 AM

How to set up a database in Laravel?

Configure database connection information in .env files, including DB_CONNECTION, DB_HOST, DB_PORT, DB_DATABASE, DB_USERNAME and DB_PASSWORD; 2. Optionally verify whether the .env variable is correctly referenced in config/database.php; 3. Create a migration file using phpartisanmake:migration and run phpartisanmigrate to generate data tables; 4. Create an Eloquent model through phpartisanmake:model and set the $fillable attribute to support batch assignment; 5. In the routing

Aug 20, 2025 am 07:02 AM

How to test console commands in Laravel

Usetheartisan()methodtoruncommandsandassertExitCode(0)toverifysuccess.2.Forinteractivecommands,useexpectsQuestion()tosimulateuserinputandexpectsOutput()toverifyoutput.3.Passargumentsandoptionsasanarraytoartisan()fortestingCLIparameters.4.UseexpectsOu

Aug 20, 2025 am 06:29 AM

laravel unit test

How to use observers with Eloquent models in Laravel?

Createanobserverusingphpartisanmake:observerUserObserver--model=User.2.Definemethodslikecreated,updated,deletedintheobservertohandleEloquentevents.3.RegistertheobserverinEventServiceProviderbycallingUser::observe(UserObserver::class)inthebootmethod.O

Aug 20, 2025 am 06:18 AM

How to implement event sourcing in Laravel

Understandcoreconceptslikeevents,aggregate,eventstore,andreplaying;2.Createaneventstablewithaggregate_type,aggregate_id,event_type,payload,andversion;3.DefinedomaineventssuchasOrderPlacedandOrderShippedasplainPHPclasses;4.BuildanaggregaterootlikeOrde

Aug 20, 2025 am 03:50 AM

How to create a user profile page in Laravel?

SetupLaravelauthenticationusingLaravelBreezeorsimilar;2.Createaprotectedprofilerouteinweb.php;3.BuildaBladeviewtodisplayuserinformationlikename,email,andjoindate;4.Addaprofilelinkinthenavigationthatappearsonlyforauthenticatedusers;5.Optionally,create

Aug 20, 2025 am 03:18 AM

Laravel MVC: quickstart guide

Laravel was chosen for its elegant syntax, powerful features and MVC architecture. 1) The MVC mode separates data (model), logical flow (controller) and presentation (view), improving the maintainability and scalability of the code. 2) Shows how the model, controller and view work together through code examples. 3) It is recommended to keep the model strong, the controller is concise, and the view focuses on display. 4) Laravel's routing system is flexible and can be mapped directly to the controller. 5) Use preload to optimize query performance to avoid N 1 query problems. 6) Follow the DRY principle, reuse code using Blade templates and EloquentORM to maintain consistency and simplicity.

Aug 20, 2025 am 02:26 AM

laravel mvc

How to version a Laravel API effectively?

Useurl-Basedversioning (e.g.,/V1,/V2) Simplicityandbetterdeveveloperexperience.2.organizecodebyCreating parateltrollersandr EsourCesforhaacapiversiontopreventbreakingchanges.3.VeragelaraveleksurCestoformatresponsesdifferentlyacross versions, alike

Aug 20, 2025 am 01:44 AM

laravel api version control

How to work with database seeding in Laravel

Database fill is used in Laravel development to quickly insert test or initial data to ensure environmental consistency; first create a fill class using phpartisanmake:seeder, insert data through DB::insert or model factory in the run() method, such as inserting user records; you can specify to run a single filler through phpartisandb:seed--class, or multiple fillers are called sequentially in DatabaseSeeder to handle foreign key dependencies; combined with model factory, a large amount of test data can be generated, and a factory is created using phpartisanmake:factory and define field generation rules, and then call User::

Aug 20, 2025 am 12:03 AM

laravel 數(shù)據(jù)庫填充

How to generate API documentation for a Yii project

ForinternalPHPcodedocumentationinYii,usePHPDocumentorbyinstallingitviaComposer,configuringphpdoc.dist.xmltospecifysourcepathsandoutputdirectory,andrunningvendor/bin/phpdocruntogenerateHTMLdocsfromPHPDoccomments.2.ForinteractiveRESTAPIdocumentation,us

Aug 19, 2025 pm 12:20 PM

api documentation Yii項(xiàng)目

How to create custom widgets in Yii

To create a custom widget, you need to inherit the yii\base\Widget class and implement the init() and run() methods; 2. Return HTML content in the run() method or call the view file through render(); 3. Use widgets in the view through YourWidget::widget([...]); 4. Optionally use independent view files and asset packages to manage CSS/JS; 5. Pass parameters through configuration properties and optimize performance in combination with cache. This method makes the code modular, reusable and easy to maintain.

Aug 19, 2025 am 11:44 AM

How to pass data from controller to view in Yii

The most common way to pass data using the render() method is. In the controller, data is passed through associative arrays, and the key name becomes a variable in the view; 2. Use view->params to share data, such as page title or breadcrumbs in multiple views or layouts; 3. You can directly pass model or object instances, suitable for CRUD operations and integrate well with widgets such as ActiveForm; 4. In Yii3 or advanced mode, you can use view components to encapsulate data logic, but in most cases the render() method is sufficient; the output must always be escaped to prevent XSS, and data should be prepared at the controller or service layer rather than handling complex logic in the view.

Aug 19, 2025 am 10:18 AM

controller yii

How to build a chat application with Laravel

Install Laravel and set up authentication, and quickly build login and registration functions using Breeze or Fortify; 2. Create message table migration and run to store chat content; 3. Configure broadcast drivers as Pusher, install LaravelEcho and PusherJS to implement WebSocket communication; 4. Create Message model and controller, write acquisition and storage message logic, and broadcast new message events; 5. Create MessageSent event class to implement ShouldBroadcastNow interface, specify broadcast channels and data; 6. Define authentication routes in web.php, including chat pages, obtain messages and send message interfaces; 7. Create chat.

Aug 18, 2025 pm 12:00 PM

laravel chat application