How to work with request headers and responses in Laravel?
LaravelallowseasyaccesstorequestheadersviatheRequestobjectorrequest()helper,suchas$request->header('Content-Type')orrequest()->header('X-Forwarded-For').Youcancheckforheaderexistenceusing$request->hasHeader('X-API-Key')andretrieveallheadersw
Aug 01, 2025 am 12:19 AM
Laravel error and exception handling
Laravel's error and exception handling mechanism is based on the PHP exception system and Symfony component, and is managed by the App\Exceptions\Handler class. 1. Record exceptions through the report() method, such as integrating Sentry and other monitoring services; 2. Convert exceptions into HTTP responses through the render() method, supporting custom JSON or page jumps; 3. You can create custom exception classes such as PaymentFailedException and define their response format; 4. Automatically handle verification exception ValidationException, and manually adjust the error response structure; 5. Decide whether to display details based on the APP_DEBUG configuration.
Jul 31, 2025 am 11:57 AM
How to extend a Laravel class using the macro method?
You can use macro methods to extend classes that use Macroable features in Laravel. 1. Ensure that the target class (such as Request, Collection) uses Macroable features; 2. Register macros in the boot method of the service provider (such as AppServiceProvider) through ClassName::macro('methodName',closure); 3. Call custom methods through instances in the application, such as $request->isApiRequest() or $collection->averageStringLength(); 4. Note that macros are global
Jul 31, 2025 am 11:45 AM
What are queues in Laravel?
Laravelqueuesdefertime-consumingtaskslikesendingemailsorprocessinguploadstoimproveperformanceanduserexperience.1.Whenajobisdispatched,itisstoredinaqueueusingdriverssuchasdatabase,Redis,SQS,orothers.2.Aqueueworker,startedwithphpartisanqueue:work,proce
Jul 31, 2025 am 10:57 AM
How to handle CORS issues in Laravel?
For the CORS problem of LaravelAPI, it is recommended to choose the correct solution according to the version: 1. LaravelSanctum should be used for Laravel9.2 and above, after installation, configure the SANCTUM_STATEFUL_DOMAINS environment variable and apply the EnsureFrontendRequestsAreStateful middleware; 2. Older versions need to use fruitcake/laravel-cors package, and set allowed_origins and other parameters by config/cors.php; 3. Avoid manually adding CORS headers to ensure that the preflight request is processed correctly and the credentials farm
Jul 31, 2025 am 10:56 AM
What are routes in Laravel?
In Laravel, a route is the entry point for the application that defines how HTTP requests are processed and point to specific code. The routing file is located in the routes/ directory, mainly including: routes/web.php for web page requests (including sessions and CSRF protection), routes/api.php for API interface (stateless, using API middleware), routes/console.php for Artisan command, routes/channels.php for broadcast events. The basic routing syntax is defined by closures, such as Route::get('/hello',function(){return'Hell
Jul 31, 2025 am 10:16 AM
How to version a Laravel API?
UseURLversioning(e.g.,/api/v1)forsimplicityandclarity.2.GroupversionedroutesusingRoute::prefix()inroutes/api.php.3.Organizecontrollers,resources,andtransformersbyversioninseparatedirectories(e.g.,App\Http\Controllers\Api\V1).4.UseLaravelAPIResourcest
Jul 31, 2025 am 10:09 AM
How to create named routes in Laravel?
In Laravel, use the name() method to name the route and reference it through the route() helper function, 1. Define the named route: Route::get('/dashboard',function(){})->name('dashboard'); 2. Use: {{route('dashboard')}} in the Blade template; 3. Redirect in the controller: returnredirect()->route('dashboard'); 4. You can add a name prefix when routing grouping: Route::name('admin.')->group() to make the route
Jul 31, 2025 am 10:05 AM
What is Laravel Scout for full-text search?
LaravelScoutisadriver-basedpackagethatsimplifiesfull-textsearchimplementationinLaravelappsbysyncingEloquentmodelswithsearchengines.1.IteliminatesslowLIKEqueriesbyintegratingwithpowerfultoolslikeAlgolia,Meilisearch,ordatabasefull-textsearch.2.Keyfeatu
Jul 31, 2025 am 08:44 AM
How to use database transactions in Laravel?
UseDB::transaction()forautomaticcommitandrollback;2.ApplymanualcontrolwithDB::beginTransaction(),DB::commit(),andDB::rollBack()forcomplexlogic;3.WrapEloquentmodeloperationsintransactionstomaintaindataintegrity;4.SpecifyretryattemptsinDB::transaction(
Jul 31, 2025 am 08:39 AM
How do I perform CRUD operations (Create, Read, Update, Delete) using Yii models?
When using the model to perform CRUD operations in Yii, the following steps must be followed: 1. Create a record: instantiate the model, assign attributes and call save(); 2. Read data: Use the find() method to obtain records in combination with query conditions; 3. Update records: query first and then modify the attributes before saving; 4. Delete records: call delete() or deleteAll(). Pay attention to verification, secure assignment and soft deletion policies to ensure correct and secure operation.
Jul 31, 2025 am 08:11 AM
How to use updateOrCreate in Eloquent?
updateOrCreate is used in Laravel to update or create records according to the search conditions. It first looks for matching records. If there is, the specified field will be updated. Otherwise, a new record will be created. For example, UserPreference::updateOrCreate(['user_id'=>$user->id],['theme'=>'dark','language'=>'en','notifications_enabled'=>true]) will look up and update or create user preferences based on user_id. This method automatically processes the timestamp and returns the model instance, which is suitable for
Jul 31, 2025 am 07:32 AM
How to customize the key for route model binding to use a slug?
In Laravel, using slug instead of id for routing model binding can be achieved by overriding the getRouteKeyName method. First, rewrite the getRouteKeyName method in the model to return 'slug'; second, it is recommended to add a unique index to the slug field to ensure accuracy and check the uniqueness of the existing data; finally, keep the route and controller code unchanged, Laravel will automatically parse the model through slug. In addition, pay attention to issues such as clearing routing cache, handling soft deletion situations, and field naming consistency.
Jul 31, 2025 am 07:17 AM
How to write tests in Laravel?
SetupthetestingenvironmentusingLaravel’sbuilt-inphpunit.xmland.env.testingwithSQLiteinmemory.2.WritefeatureteststotestfullHTTPinteractions,usinghelperslike$this->post()andassertRedirect().3.Writeunittestsforisolatedclasseslikeservices,ensuringthey
Jul 31, 2025 am 06:43 AM
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