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Technical Articles

PHP Framework

Laravel

How to manage assets in Laravel?

Storerawassetsintheresources/directory(CSS,JS,images,fonts).2.UseLaravelMix(viawebpack.mix.js)tocompileassetsintothepublic/folder,leveragingmethodslike.js(),.sass(),and.version()forprocessingandcachebusting.3.Runnpmrundevfordevelopment,npmrunproducti

Jul 29, 2025 am 03:16 AM

Laravel raw SQL query example

Laravel supports the use of native SQL queries, but parameter binding should be preferred to ensure safety; 1. Use DB::select() to execute SELECT queries with parameter binding to prevent SQL injection; 2. Use DB::update() to perform UPDATE operations and return the number of rows affected; 3. Use DB::insert() to insert data; 4. Use DB::delete() to delete data; 5. Use DB::statement() to execute SQL statements without result sets such as CREATE, ALTER, etc.; 6. It is recommended to use whereRaw, selectRaw and other methods in QueryBuilder to combine native expressions to improve security

Jul 29, 2025 am 02:59 AM

java programming

How to use JSON columns in MySQL with Laravel?

It is efficient and intuitive to use JSON columns to store flexible data in Laravel and MySQL: 1. Use the json() method to define JSON fields during migration, such as $table->json('settings'); 2. Map fields to JSON through the $casts attribute in the model, and directly access the array data and update nested values using the -> syntax; 3. Use where('settings->theme','dark'), whereJsonContains and whereJsonLength methods to query JSON content; 4. When accessing, it is like an object or array attribute, such as $user-

Jul 29, 2025 am 02:43 AM

How to handle POST requests in Laravel?

DefineaPOSTrouteusingRoute::postinroutes/web.phporroutes/api.php;2.Createacontrollermethodtohandletherequest,retrieveinputvia$request->input(),andprocessdata;3.Include@csrfinBladeformsforCSRFprotection;4.Validateinputusing$request->validate()wi

Jul 29, 2025 am 02:40 AM

How to use Laravel Dusk for browser testing?

LaravelDusk simplifies browser automation testing, and runs directly with ChromeDriver without Selenium or JDK. 1. Install: composerrequire--devlaravel/dusk, and then run phpartisandusk:install. 2. Create a test: phpartisandusk:makeLoginTest, use visit(), type(), press(), and assertPathis() to simulate user operations in the test. 3. Common methods include click(), check(), select(), attach(), w

Jul 29, 2025 am 02:14 AM

Browser testing

How to use Vue.js with Laravel?

Laravelversions7andearlierincludeVue.jsbydefault,butfromLaravel8 youmustmanuallyintegrateit;2.TosetupVue3,installVueandViteplugins,configurevite.config.js,updateapp.jstousecreateApp,anduse@viteinBladetemplates;3.VuecommunicateswithLaravelviaAPIroutes

Jul 29, 2025 am 02:04 AM

What are Gates and Policies for authorization in Laravel?

Gates is suitable for simple permission checks without the need for a model, while Policies is suitable for complex scenarios related to the model. Gates defines simple yes/no checks through closures, which is suitable for quickly processing global basic permissions; Policies is a model-based structured class used to manage permissions for operations such as editing, deletion, etc., keeping the logic clear and extensible; the two can be mixed in the same application, and policy classes can be generated through the Artisan command and tested and optimized.

Jul 29, 2025 am 01:54 AM

laravel Authorize

What is Domain-Driven Design (DDD) in the context of Laravel?

DDDinLaravelisnotbuilt-inbutcanbeappliedtoorganizecomplexbusinesslogicbystructuringcodearoundbusinessdomainsratherthantechnicallayers.1.BoundedContextsdividetheapplicationintomoduleslikeUserModuleorOrderModule,eachcontainingitsownmodels,services,ande

Jul 29, 2025 am 01:41 AM

How to profile a slow Laravel application?

EnableDebugbarorTelescopeinlocalenvtogetreal-timeinsightsintoqueries,rendering,andmemoryusage;2.CheckforN 1queriesusingeagerloadingandoptimizeslowqueriesbyaddingindexesonfrequentlyqueriedcolumns;3.BenchmarkslowcodeblocksusingLog::debug()orLaravel’sbe

Jul 29, 2025 am 01:21 AM

laravel Performance analysis

Using Eloquent Query Scopes in Laravel.

Eloquent query scope improves code clarity and reusability by encapsulating common query logic. 1. The local scope is defined with a method starting with scope, such as scopeActive() is used to filter enabled users; 2. The dynamic scope supports parameter passing, such as scopeStatus($status) to achieve flexible state filtering; 3. The global scope is automatically applied to all queries, suitable for data isolation but needs to be used with caution; 4. Multiple scopes can be combined in chains to enhance semantic expression and maintenance; 5. Complex queries can be centrally processed through conditional judgments to improve flexibility.

Jul 29, 2025 am 01:19 AM

laravel eloquent

How to write a feature test in Laravel?

When writing feature tests in Laravel, you need to use Artisan to generate test classes and simulate user behavior. 1. Generate test files through phpartisanmake:testExampleFeatureTest--feature, the test class inherits TestCase and uses RefreshDatabase and other traits to process the database. 2. Use $this->get, ->post and other methods to simulate HTTP requests, and combine assertStatus, assertRedirect and other assertion verification responses. 3. You can simulate user login through actingAs and prepare data in combination with the model factory. 4. Characteristic measurement

Jul 29, 2025 am 01:17 AM

Laravel events and listeners tutorial

Create events and listeners: Use the Artisan command to generate UserRegistered events and SendWelcomeEmail and LogUserRegistration listeners; 2. Define event classes: Inject user instances into the UserRegistered constructor for listeners to access; 3. Write listener logic: SendWelcomeEmail sends welcome emails, and LogUserRegistration records user registration logs; 4. Register events and listeners: bind events and listeners in the $listen array of EventServiceProvider; 5. Distribute events: pass e after user registration.

Jul 29, 2025 am 01:10 AM

php laravel

How to set up a Content Security Policy (CSP) in Laravel?

Createamiddlewareusingphpartisanmake:middlewareAddCspHeadersandimplementtheCSPheaderinthehandlemethodwithapolicylikedefault-src'self';whileavoiding'unsafe-inline'and'unsafe-eval'inproduction;2.Registerthemiddlewaregloballyinthe$middlewarearrayorapply

Jul 29, 2025 am 01:06 AM

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