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Technical Articles

PHP Framework

How to work with Blade templating engine in Laravel?

To effectively use Laravel's Blade template engine, you must first master its syntax and structure. Blade compiles templates into PHP code through concise syntax and caches them to improve performance. 1. When creating a Blade view, save it in the resources/views directory and use the .blade.php extension to output variables (auto escape) through {{$variable}}, or use {!!$value!!} to output unescaped content (user input needs to be handled with caution). 2. Use the Blade control structure to implement logic: @if, @elseif, @else, @endif for conditional judgment; @foreach, @for, @endforel

Aug 15, 2025 am 02:19 AM

How to use Laravel Cashier for billing

LaravelCashiersimplifiessubscriptionbillingwithStripebyprovidinganelegant,expressiveinterfaceformanagingpayments,subscriptions,invoices,andcoupons.First,installCashierviaComposerusingcomposerrequirelaravel/cashier,thenpublishandrunitsmigrationswithph

Aug 15, 2025 am 01:33 AM

How to validate arrays and nested data in Laravel?

Laravelvalidatesbasicarraysusing'array'andwildcard''ruleslike'tags.'foreachelement.2.Nesteddataisvalidatedviadotnotationsuchas'user.name'and'user.settings.theme'.3.Arraysofobjectsarehandledwith'array'and'collection..field'ruleslike'products..name'.4.

Aug 15, 2025 am 12:41 AM

laravel data verification

How to use dependency injection in Yii

Yii's DI container injects dependencies by automatically resolving the constructor type prompt. For example, the EmailService declared in the UserService will be automatically created and injected; 2. The interface and implementation can be bound through the Yii::$container set method, the singleton can be registered, and the constructor parameters can be configured through arrays or closures; 3. The dependencies can be declared through the constructor in the controller, but it is necessary to ensure that the parameters required by the parent class such as $id and $module must be passed; 4. It is recommended to register the dependencies globally in the container.definitions configured by the application, such as binding EmailInterface to SmtpEmailServic

Aug 14, 2025 pm 10:51 PM

How to use Yii with a NoSQL database like MongoDB

Yes, Yii2 supports MongoDB well, just install the official extension and configure it correctly. 1. Use Composer to install the yiisoft/yii2-mongodb extension; 2. Set up the DSN connection string of MongoDB through the Connection component in the configuration file; 3. Create a model inherited from yii\mongodb\ActiveRecord, and implement the collectionName() and attributes() methods; 4. Use ActiveRecord syntax to add, delete, modify and search operations, and support MongoDB native query operators; 5. You can use the getCollection() method

Aug 14, 2025 pm 09:14 PM

How to use view composers in Laravel

ViewcomposersinLaravelautomaticallybinddatatospecificviewswhenevertheyarerendered,eliminatingtheneedtopassthesamedatafrommultiplecontrollers.2.Youcanregisteraviewcomposerusingaclosureinthebootmethodofaserviceprovider,suchasAppServiceProvider,toinject

Aug 14, 2025 pm 07:11 PM

How to work with environment variables in Laravel?

Usethe.envfiletodefineenvironment-specificvariableslikedatabasecredentialsandappsettings.2.Accessvariablesviatheenv()helperbutonlywithinconfigurationfilesforperformance.3.Mapenvironmentvariablesinconfigfiles(e.g.,config/database.php)andaccessthemusin

Aug 14, 2025 pm 07:10 PM

How to test API endpoints in Laravel

Setupatestenvironmenta. TestCaseandhttpmethodikegetjson () Toassed Status, Json Tructure, Anddata.3.testpost, Put, Secondary Secruit Suspicing Postjson (), Asser

Aug 14, 2025 pm 06:08 PM

How to use fluent string operations in Laravel?

Laravel has introduced smooth string operations based on Illuminate\Support\Stringable since version 7. The answer is to use Str::of() to start chain calls. 1. Create a Stringable instance through Str::of('string') and call the method chained. 2. Common methods include trim, replace, append, slug, upper, etc. for formatting. 3. Use when($condition, $callback) to implement conditional conversion. 4. Use after, before, substr and other methods to extract string fragments. 5. It can be used to clear the actual application.

Aug 14, 2025 pm 04:20 PM

How to create a controller in Laravel

UseArtisantogenerateacontrollerwithphpartisanmake:controllerUserController,whichcreatesthefileinapp/Http/Controllers.2.Choosethecontrollertype:basicforcustomlogic,--resourceforCRUDmethodswithRoute::resource('posts',PostController::class);,or--apiforA

Aug 14, 2025 pm 03:49 PM

How to clear cache in Laravel

Clearapplicationcachewithphpartisancache:cleartoremovecacheddatastoredviacachedriver.2.Clearconfigurationcacheusingphpartisanconfig:clearafterchanging.envorconfigfiles,thenoptionallyre-cachewithphpartisanconfig:cacheinproductiononly.3.Clearroutecache

Aug 14, 2025 pm 03:10 PM

laravel cache

How to build a multi-auth system in Laravel

To build a Laravel multi-user authentication system, you need to follow the following steps: 1. Create multiple user models (such as Admin and Vendor) and configure the corresponding guard and provider; 2. Set up independent routes and controllers for each user type, and use the Auth facade to specify guard to handle login logic; 3. Create respective login views for different roles, and submit the form to the corresponding route; 4. Use middleware with guard (such as auth:admin) or custom middleware to protect the route; 5. Get authenticated users through Auth::guard('guard_name') in the controller and view; 6. Optionally customize Breeze/Fortify to support

Aug 14, 2025 pm 01:37 PM

laravel Multi-factor authentication

How to create a custom 404 error page in Laravel?

Create resources/views/errors/404.blade.php file, which Laravel will automatically use to display the 404 error page; 2. Make sure APP_DEBUG=false and access non-existent routes to test the custom 404 page; 3. You can use abort (404) or manually throw an exception in the controller or route to trigger the 404 page; 4. You can inherit the main layout file and create corresponding view files for other error codes, and finally clear the view cache in the production environment to ensure that the changes take effect.

Aug 14, 2025 pm 01:16 PM

laravel 404 Error Page

How to use factories for testing in Laravel

Use the Laravel factory to generate test data efficiently. First, define the factory class in the database/factories directory. 1. Create and persist the model using User::factory()->create(). 2. Create unsaved instances using make(). 3. Generate multiple models through count(n). 4. Use the state method to define states such as admin or suspended. 5. Use for() and has() to process model relationships. 6. Custom attributes or chain calls multiple states. 7. It is recommended to use create in functional tests and make in unit tests. 8. Avoid over-generating data and make good use of afterCreating hooks.

Aug 14, 2025 pm 12:25 PM