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Technical Articles

PHP Framework

How to get the last inserted ID in Laravel?

Use$user->idafterModel::create()or$user->save()togetthelastinsertedIDwithEloquent.2.UseDB::table('table')->insertGetId()wheninsertingdirectlyviaQueryBuildertoretrievetheID.3.AvoidDB::table('table')->insert()ifyouneedtheID,asitreturnsonlya

Jul 29, 2025 am 01:03 AM

laravel 插入ID

What are Accessors and Mutators in Laravel Eloquent?

Accessor is used to format data when obtaining attributes, such as capitalization; Mutator is used to set the attributes before processing data, such as encryption password. For example: 1. Accessor uses the get{AttributeName}Attribute method to modify the display when reading the field, such as ucfirst processing the name; 2. Mutator uses the set{AttributeName}Attribute method to convert data before saving the field, such as bcrypt encryption password; 3. It can be used in scenarios such as time formatting, splicing fields, cleaning input, etc., and can be used to multiplex logic through Trait. Combined fields need to be added to the $appends array to support JSON output.

Jul 28, 2025 am 04:30 AM

laravel eloquent

How to run a Laravel project?

CheckPHP>=8.1,Composer,andwebserver;2.Cloneorcreateprojectandruncomposerinstall;3.Copy.env.exampleto.envandrunphpartisankey:generate;4.Setdatabasecredentialsin.envandrunphpartisanmigrate--seed;5.Startserverwithphpartisanserve;6.Optionallyrunnpmins

Jul 28, 2025 am 04:28 AM

laravel 運行項目

How to set up Vite in a Laravel project?

EnsureLaravel9 andPHP8.0 areused,asViteissupportedoutofthebox;upgradeifonanolderversion.2.InstallViteandrequiredpluginsvianpminstallormanuallyaddviteandlaravel-vite-pluginifmissing,alongwithframework-specificpluginslike@vitejs/plugin-reactor@vitejs/p

Jul 28, 2025 am 04:28 AM

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