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Technical Articles

PHP Framework

How to deploy a Laravel application

SetAPP_ENV=productionandAPP_DEBUG=falsein.env,generateanapplicationkeywithphpartisankey:generate,optimizeperformancebyrunningphpartisanconfig:cache,route:cache,andview:cache,andcompileassetsusingnpmrunbuild.2.ConfiguretheproductionserverwithPHP8.1 ,C

Sep 16, 2025 am 02:20 AM

How to write unit tests for a Yii application?

Answer: When writing unit tests for Yii applications, you need to configure the test environment and use PHPUnit to test models and components. First, install phpunit and codeception through Composer, use the tests directory and phpunit.xml.dist configuration file in the official template, set YII_ENV to 'test', and create bootstrap.php initialization Yii; then write test cases for the model, such as verifying data rules and attribute tags in UserTest, and automatically rolling back database transactions using DbTestCase; for service classes such as PaymentService, dependencies are isolated through Mock to ensure that the test is independent and has no side effects;

Sep 16, 2025 am 01:12 AM

unit test yii framework

How to run a specific seeder in Laravel?

Usephpartisandb:seed--class=YourSeederNametorunaspecificseeder,replacingYourSeederNamewiththeactualclassnamelikeUserSeeder.Ensuretheseederexistsindatabase/seedersandruncomposerdump-autoloadifneeded.Optionally,specifyenvironmentwith--envoruse--forceto

Sep 16, 2025 am 12:06 AM

laravel Seeder

How to work with the file storage system in Laravel

Laravel's file storage system is implemented through Storage facades and Flysystems, supporting local, cloud storage, etc. 1. Configure disks in config/filesystems.php, such as local, public, s3; 2. Use Storage::disk('name') to store files, put() generates a unique file name, putFileAs() can specify a name, pay attention to security risks; 3. Read content through get(), url() generates a public link, and temporaryUrl() creates a temporary signature link (S3 only); 4. Exists() checks the file, size() and mimeType() gets

Sep 15, 2025 am 04:31 AM

How to send emails with Laravel

Configure email settings: Set MAIL_MAILER, MAIL_HOST, MAIL_PORT and other parameters in the .env file to configure the email driver; 2. Create mailable classes: Use phpartisanmake:mailWelcomeEmail to generate the Mailable class and define the topic, views and data; 3. Create mail templates: Create a Blade template in resources/views/emails/welcome.blade.php to define the email content; 4. Send mail: use the Mail::to()->send() method to send emails in the controller or route, supporting cc and bcc chain calls;

Sep 15, 2025 am 03:06 AM

How to create a custom facade in Laravel?

First,createaserviceclassinapp/Services/CustomService.phpwithdesiredlogic.Next,bindittotheservicecontainerviaAppServiceProviderusingauniquekeylike'custom.service'.Then,createafacadeclassinapp/Facades/CustomFacade.phpextendingFacade,returningthesameke

Sep 15, 2025 am 02:49 AM

laravel facade

How to create a resource controller in Laravel?

Laravel generates resource controller creates a controller containing index, create, store, show, edit, update, and destroy methods through the Artisan command phpartisanmake:controllerPostController--resource, and adds Route::resource('posts',PostController::class) to register routes in routes/web.php to realize CRUD operation automation.

Sep 15, 2025 am 02:36 AM

laravel 資源控制器

How to paginate query results in Laravel?

Usepaginate()inLaravelcontrollersinsteadofget()toenablepagination,passingtheresulttoviews;displaynavigationwith->links()inBladetemplates.

Sep 15, 2025 am 02:29 AM

laravel Pagination

How to implement lazy loading in Yii Active Record?

LazyloadinginYiiActiveRecordautomaticallyfetchesrelateddatawhenaccessed,notduringinitialmodelload.DefinedviahasOne()orhasMany(),relationstriggeradatabasequeryonfirstaccess,asin$order->customer,whichretrievesthecustomeronlywhenneeded.Thiskeepsiniti

Sep 15, 2025 am 12:04 AM

yii

How to format dates and numbers in Yii

Yii provides the Formatter component (yii\i18n\Formatter) to simplify the formatting of dates and numbers. 1. It can use asDate(), asDateTime(), and asTime() for date formatting, and supports predefined formats (such as short, medium) and custom ICU or PHP format; 2. Digital formatting can be implemented through asInteger(), asDecimal(), asPercent(), asCurrency() and other methods, supporting currency, percentage, scientific counting and file size; 3. The dateFormat and da of the formatter component should be set globally in the application configuration.

Sep 14, 2025 am 04:10 AM

yii date formatting

How to use Eloquent accessors and mutators in Laravel?

Accessorsformatattributevalueswhenretrieved,mutatorsmodifythembeforesaving.2.DefineaccessorswithgetAttributeNameAttributeandmutatorswithsetAttributeNameAttribute.3.Useaccessorstotransformoutput,likecapitalizingfirst_name.4.Usemutatorstostandardizeinp

Sep 14, 2025 am 03:32 AM

laravel eloquent

How to use the Storage facade with S3 in Laravel?

Install the league/flysystem-aws-s3-v3 package; 2. Configure AWS credentials and S3 bucket information in .env; 3. Set the default disk in config/filesystems.php to s3; 4. Use Storage::put, Storage::url and other methods to operate S3; 5. Use $request->file('file')->store('dir','s3') to store directly into S3 when processing uploads.

Sep 14, 2025 am 02:50 AM

laravel s3

How to use eager loading with Eloquent in Laravel?

Eagerloadingreducesdatabasequeriesbypre-loadingrelationships.Usewith()toloadrelatedmodelsefficiently,avoidingN 1issues.Forexample,Post::with('user')fetchespostsandauthorsintwoqueries.LoadmultiplerelationsviaPost::with(['user','comments']).Usedotnotat

Sep 14, 2025 am 02:27 AM

How to handle maintenance mode in Laravel?

Usephpartisandowntotriggermaintenancemode,whichdisplaysa503errorandpreventsuseraccesswhileallowingsafeupdates.2.Customizethemaintenancemessagewith--messageoruseacustomBladeviewvia--render="errors::507".3.Allowaccessduringmaintenancebygenera

Sep 14, 2025 am 12:44 AM