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Technical Articles

PHP Framework

How to define a one-to-one relationship in Eloquent?

In LaravelEloquent, defining a one-to-one relationship requires first setting the database foreign key and associating the model using hasOne and belongsTo methods. 1. Create a unique foreign key pointing to the users table in the phones table through foreignId('user_id')->unique(); 2. Define publicfunctionphone() in the User model {return$this->hasOne(Phone::class); } means that the user has a phone; 3. Define publicfunctionuser(){return$this-

Jul 28, 2025 am 04:25 AM

How to set up Laravel with Docker?

Create a Laravel project using Composer container; 2. Write a Dockerfile containing PHP extensions and Apache configuration; 3. Define app, MySQL and phpMyAdmin services through docker-compose.yml; 4. Configure the Apache virtual host to support Laravel routing; 5. Update the .env file to set up database connections; 6. Run docker-composeup-d--build to start the container; 7. Execute Composer installation and key generation in the container; 8. Optional run migration; 9. Use docker-composeexec to execute Artisan commands during development

Jul 28, 2025 am 04:24 AM

Laravel lazy loading vs eager loading

Lazy loading only queries when accessing associations can easily lead to N 1 problems, which is suitable for scenarios where the associated data is not determined whether it is needed; 2. Emergency loading uses with() to load associated data in advance to avoid N 1 queries, which is suitable for batch processing scenarios; 3. Emergency loading should be used to optimize performance, and N 1 problems can be detected through tools such as LaravelDebugbar, and the $with attribute of the model is carefully used to avoid unnecessary performance overhead.

Jul 28, 2025 am 04:23 AM

java programming

How to seed a database in Laravel?

Create a seeder file: Use phpartisanmake:seederUserSeeder to generate the seeder class, and insert data through the model factory or database query in the run method; 2. Call other seeder in DatabaseSeeder: register UserSeeder, PostSeeder, etc. in order through $this->call() to ensure the dependency is correct; 3. Run seeder: execute phpartisandb:seed to run all registered seeders, or use phpartisanmigrate:fresh--seed to reset and refill the data; 4

Jul 28, 2025 am 04:23 AM

laravel database

What is Laravel Sail?

LaravelSailisacommand-lineinterfacethatsimplifiesLaraveldevelopmentusingDockerbyprovidingapre-configuredenvironmentwithoutrequiringDockerexpertise;iteliminateslocalsetupconflicts,supportsconsistentteamenvironments,andenablesquickprojectinitialization

Jul 28, 2025 am 04:19 AM

laravel Sail

Laravel form validation tutorial

Laravel form verification can be implemented through the validate() method in the controller. 1. Use validate() to define rules such as required, email, unique, etc. to ensure data compliance; 2. You can pass in the second parameter to customize the error message, or set a global Chinese prompt in lang/zh-CN/validation.php; 3. Use the @error directive to display error messages in the Blade template, and use old() to retain the input value; 4. Advanced skills include: a) use sometimes to implement conditional verification, b) verify array fields through users.*.name syntax, c) create form

Jul 28, 2025 am 04:18 AM

What is Laravel Octane and when is it useful?

LaravelOctaneisusefulforimprovingperformanceinhigh-traffic,low-latency,orreal-timeapplicationsbykeepingtheLaravelframeworkloadedinmemoryusingSwooleorRoadRunner.1.Itexcelsinhigh-trafficapplicationsbyreducingserverloadandresponsetimethroughpersistentap

Jul 28, 2025 am 04:13 AM

php

What is Laravel Octane?

LaravelOctaneisaperformance-boostingpackagethatimprovesresponsetimesandthroughputbyservingLaravelapplicationsviaSwoole,OpenSwoole,orRoadRunner.1.UnliketraditionalPHP-FPM,whichbootsLaraveloneveryrequest,Octaneloadstheapponceandkeepsitinmemory.2.Thisel

Jul 28, 2025 am 04:12 AM

php

Yii and security: what are the top options?

ToenhanceYiiapplicationsecurity,use:1)Yii'sbuilt-infeatureslikeCSRFprotectionandinputvalidation;2)Third-partyextensionssuchasyii2-redisforsessionstorageandyii2-authclientforOAuth;3)Bestpracticesincludingregularupdates,secureconfigurations,androbustlo

Jul 28, 2025 am 03:04 AM

What are Action classes in Laravel and why use them?

ActionclassesinLaravelshouldbeusedtoencapsulatecomplexbusinesslogicintosingle-responsibilityclassesforbettercodeorganization.1.Theyenforceseparationofconcernsbymovinglogicoutofcontrollers.2.Theyimprovereusabilityacrosscontrollers,commands,andqueues.3

Jul 28, 2025 am 03:01 AM

Laravel performance optimization tips

OptimizeComposer’sautoloaderusingcomposerinstall--optimize-autoloader--no-devandcomposerdump-autoload--classmap-authoritativetospeedupclassloading.2.Cacheconfigurationandroutesinproductionwithphpartisanconfig:cacheandphpartisanroute:cachetoreduceboot

Jul 28, 2025 am 02:29 AM

What is the purpose of the web directory in Yii?

ThewebdirectoryinYiiservesasthepublicentrypointforuserrequests,enhancingsecurityandorganization.Itcontainstheindex.phpfileandallstaticassetslikeCSS,JS,andimages,ensuringthatsensitiveapplicationfilessuchasconfigsandmodelsremainoutsideofpublicaccess.1.

Jul 28, 2025 am 02:28 AM

yii Web目錄

How to define a many-to-many relationship in Laravel?

To define many-to-many relationships in Laravel, you need to create a model and migration, define an Eloquent relationship and use related methods to operate; 1. Create a User and Role model and role_user association table migration, set a foreign key and add a unique index to prevent duplication; 2. Define the roles() method in the User model and return belongsToMany(Role::class), define the users() method in the Role model and return belongsToMany(User::class); 3. Manage the relationship through attach, detach, sync and contains methods; if you need to store additional data in the association table, you can migrate

Jul 28, 2025 am 02:11 AM

How to use signed URLs in Laravel?

EnablesignedURLsupportbydefininganamedrouteinroutes/web.phporroutes/api.php;2.GenerateasignedURLusingURL::temporarySignedRoutewithanexpirationtimeandrouteparameters;3.Verifythesignatureviathe'signed'middlewareormanuallyusing$request->hasValidSigna

Jul 28, 2025 am 02:09 AM