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Technical Articles

PHP Framework

Laravel

How to define a route in Laravel?

The methods for defining routes in Laravel include using closures, controllers, route naming and parameter passing. The specific steps are as follows: 1. Select routes/web.php or routes/api.php file according to the application type; 2. Use Route::get, post, put, delete and other methods to define the basic route, or use Route::match to specify multiple methods, Route::any accepts any method; 3. Create a controller and bind to the route, generate the controller through the Artisan command and reference it in the route; 4. Use the name() method to name the route to facilitate calls through the route() function in the template; 5. Define the required method in the route in the route.

Jul 20, 2025 am 01:58 AM

laravel routing

Implementing Rate Limiting for Laravel APIs?

The implementation of API current limiting in Laravel can be efficiently accomplished through middleware and Redis. 1. Use the built-in throttle middleware to quickly set the current limit in the routing group, such as 60 requests per minute by default; 2. By modifying the configureRateLimiting method in the RouteServiceProvider, you can customize the global current limit frequency; 3. You can dynamically adjust the current limit strategy according to the user's identity or role, such as providing higher limits for authenticated users or advanced users; 4. It is recommended to use Redis as a cache driver in the production environment to improve concurrent processing capabilities; 5. When the request exceeds the limit, the default response will be returned, and the error response content can also be customized through the exception handling mechanism. These

Jul 20, 2025 am 01:57 AM

Using many-to-many relationships with pivot tables in Laravel.

Howdoyouhandlemany-to-manyrelationshipsinLaravelusingpivottables?1.CreateapivottablefollowingLaravel’snamingconvention(alphabeticalorderofthetworelatedtables,e.g.,role_user).2.Defineforeignkeys(e.g.,user_idandrole_id)andsetupforeignkeyconstraintsinth

Jul 20, 2025 am 01:37 AM

laravel many-to-many relationship

Applying SOLID principles in Laravel development.

The SOLID principle can improve code readability, flexibility and maintainability in Laravel development. The specific application is as follows: 1. The single responsibility principle (SRP) requires each class to only assume one responsibility to avoid mixing logic such as verification, database operation and email sending in the controller. The separation of responsibilities should be used using FormRequests, ServiceClasses and Jobs/Events; 2. The opening and closing principle (OCP) emphasizes the implementation of functional extension through interface and dependency injection without modifying the original code, such as dynamically replacing notification methods with NotificationSender interface; 3. The Richter replacement principle (LSP) ensures that subclasses can replace the parent class without destroying the program behavior, and avoid rewriting the method.

Jul 20, 2025 am 12:58 AM

laravel SOLID Principle

Laravel route 'Target class does not exist' error

The main reason for the "Targetclassdoesnotexist" error is that the Laravel route points to a controller class that does not exist. 1. The controller path or namespace is incorrect. The solution is to use the complete namespace or use to introduce the class; 2. The controller file does not exist or the class name is spelled incorrectly. Make sure that the file exists and the class name is consistent with the file name; 3. Composerautoload caching problems, composerdump-autoload and Laravel cache clear commands should be executed; 4. The wrong routing syntax (Laravel8) is used. It is recommended to use the new writing method to introduce the controller class or set RouteServic.

Jul 20, 2025 am 12:48 AM

Managing database transactions effectively in Laravel

Database transactions are used in Laravel to ensure the atomicity of multiple operations to maintain data consistency. When you need multiple database operations to succeed or fail at the same time (such as inter-account transfers, inventory management, and updates of interdependent models), transactions should be used; Laravel provides concise transaction support through DB facades and Eloquent, and automatically rolls back when exceptions are thrown; if you use try-catch in a transaction, exceptions need to be re-throwed to trigger rollback; it is not recommended to use transactions for all write operations, and note that non-transactional engines such as MyISAM do not support this function.

Jul 19, 2025 am 03:48 AM

How to clear the route cache in Laravel?

WhenworkingwithLaravel,routechangesmaynottakeeffectduetocachedroutes,leadingto404errorsorunexpectedbehavior.Toresolvethis,youshouldcleartheroutecacheusingthephpartisanroute:clearcommand.Aftermodifyingroutes,especiallyinproduction,clearingthecacheensu

Jul 19, 2025 am 03:31 AM

How to Seed a Database in Laravel.

Database seeding is used in Laravel to quickly fill test or initial data. The seeder class combined with modelfactory can efficiently generate structured data. 1. Use phpartisanmake:seeder to create the seeder class and insert data in the run() method; 2. It is recommended to use Eloquent's create() or batch insert() method to operate the data; 3. Use phpartisanmake:factory to create the factory class and generate dynamic test data through Faker; 4. Call other seeders in the main DatabaseSeeder.php file

Jul 19, 2025 am 03:28 AM

laravel database

What are resource controllers in Laravel?

The resource controller is a controller in Laravel that handles standard CRUD operations, and automatically creates RESTful routes and methods through conventions that are better than configuration. It contains seven methods: index, create, store, show, edit, update and destroy, which correspond to different HTTP requests, such as GET/posts→index, POST/posts→store, etc. Creating a resource controller can be implemented through the Artisan command phpartisanmake:controllerPostController--resource, or you can manually add the corresponding method. Using Rou in routing

Jul 19, 2025 am 03:07 AM

Implementing Full-Text Search with Laravel (mention Scout).

LaravelScout is a built-in tool in Laravel to add search functionality to the Eloquent model. 1. Install Scout and publish configuration files; 2. Use Searchabletrait in the model to make it searchable; 3. Use the Artisan command to import existing data to index; 4. Use the search method to perform search and support pagination and conditional filtering; 5. Scout automatically listens to Eloquent events to keep index synchronization, and can also pause synchronization through withoutSyncingToSearch; 6. Supports soft deletion models, and can be extended to Algolia or Meilisearch by switching drivers to achieve more powerful search

Jul 19, 2025 am 02:48 AM

How to test a JSON API in Laravel?

The most direct and effective way to test JSONAPI in Laravel is to use PHPUnit combined with Laravel's own testing tools. 1. Use the Artisan command to generate test classes, quickly create test files and write use cases; 2. Write basic test cases to verify status code 200, JSON structure and data content, such as through assertStatus and assertJsonStructure methods; 3. Simulate authenticated user requests, use the actingAs method to simulate Sanctum login, and pass parameters in the POST request for assertions; 4. Use RefreshDatabasetrait and database migration to ensure test consistency and cooperate with the model

Jul 19, 2025 am 02:45 AM

Using Laravel's built-in `Str` helper.

Laravel’sStrhelpersimplifiesstringmanipulationwithafluentAPIandreusablemethods.1.Itcleansandformatsstringsviatrim,lower,upper,andtitlemethods.2.Itextractspartsofstringsusingbefore,after,substr,limit,andreplace.3.ItgeneratesSEO-friendlyslugswithslug,k

Jul 19, 2025 am 02:40 AM

laravel

What are API resources in Laravel?

Laravel's API resources are a built-in tool for converting and formatting data returned by API endpoints. 1. They act as a bridge between the Eloquent model and the JSON structure returned to the client. 2. It can control the exposed data and its structure to avoid leakage of sensitive information, and support custom field names, inclusion relationships and adding meta information. 3. Generate resource classes through the Artisan command, such as phpartisanmake:resourceUserResource. 4. Use resource classes in the controller to return formatted data for a single or multiple model instances. 5. Define the return field in the toArray() method of the resource class, supporting conditional fields and relationship loading. 6. Applicable to

Jul 19, 2025 am 02:31 AM

How to clear cache in Laravel (route, config, view)?

Laravel cache will cause the modified routes, configurations or views to not take effect after a long time, and the cache needs to be cleared manually. 1. After modifying the route, run phpartisanroute:clear to clear the route cache; 2. After changing the configuration file, run phpartisanconfig:clear to clear the configuration cache; 3. When the view content is not updated, run phpartisanview:clear or delete the storage/framework/views file to clear the view cache; 4. If you are not sure about the source of the problem, you can run multiple commands in one click to clear all caches, such as phpartisanconfig:clear, phpartisanroute:

Jul 19, 2025 am 02:22 AM