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Technical Articles

PHP Framework

Laravel

How to create a helper function in Laravel

Create a file named helpers.php and place it in the app/Helpers directory; 2. Use if(!function_exists()) to define the function in the file to avoid repeated definition errors; 3. Add the file path in the autoload.files of composer.json; 4. Run composerdump-autoload to register automatic loading; 5. Call custom helper functions directly, such as Blade templates or controllers, to achieve global reuse and complete.

Aug 23, 2025 am 10:54 AM

How to manage user roles and permissions in Laravel

Install the spatie/laravel-permission package and publish migration files to create role and permission data tables; 2. Define roles and permissions through code or seed files and assign them to users; 3. Use @role, @can and other instructions or methods to check permissions in Blade templates and controllers; 4. For complex logic, combine Laravel policies (Policies) to achieve fine-grained control; 5. Use middleware to protect routes, clear permission caches through cache:forget, initialize data with seeders, and prioritize management permissions through roles rather than directly allocate management permissions, thereby building a simple, flexible and extensible permission management system.

Aug 23, 2025 am 10:33 AM

Benefits of Using Laravel Collections.

LaravelCollections improves array processing efficiency and code readability through elegant chain calls and rich built-in methods. Its core advantages include: 1. Concise and powerful chain operations, such as filter, map, sort, etc. combined to make the logic clear and easy to maintain; 2. Support custom Collection class to encapsulate business logic to improve code reuse rate; 3. Provide unified method naming and behavioral specifications to facilitate team collaboration and testing; 4. Deep integration with EloquentORM, directly supporting database query result processing; 5. Built-in debugging methods such as dump() and dd() to improve development experience. In addition, the function can be dynamically expanded through the macro mechanism, and pre-ordered in the Blade template

Aug 23, 2025 am 05:02 AM

How to use Laravel Sanctum for API authentication

The steps for setting and using LaravelSanctum are as follows: 1. Install Sanctum through Composer and publish configuration and migration files, run migration commands to create personal_access_tokens table, and ensure that the User model uses HasApiTokenstrait; 2. Define API routes in routes/api.php, such as login, logout and protected resource routes, and use auth:sanctum middleware to protect interfaces that require authentication; 3. Create an AuthController controller to process login and logout logic, verify credentials during login and generate API tokens (plainTextToken).

Aug 23, 2025 am 03:34 AM

How to build a RESTful API with Laravel Passport

InstallLaravelPassportviaComposerandrunmigrationstosetupOAuth2tables.2.AddHasApiTokenstraittotheUsermodelandconfiguretheAPIguardtousepassportinauth.php.3.DefineprotectedAPIroutesusingtheauth:apimiddlewareinroutes/api.php.4.Createaresourcecontrollerwi

Aug 23, 2025 am 03:25 AM

How to use Livewire in Laravel

Livewire is a powerful Laravel library for building dynamic, responsive interfaces without writing a lot of JavaScript. First install via Composer: composerrequirelivewire/livewire, and then add @livewireStyles and @livewireScripts in the main layout file. Then use phpartisanmake:livewirecounter to create the component. The generated class file contains the public attribute $count and increment/decrement method. The view file uses wire:click to bind the event. 1

Aug 23, 2025 am 02:17 AM

How to internationalize a Laravel application

Create language files: Create subdirectories for each language (such as en, es) in the resources/lang directory and add messages.php file, or use JSON file to store translation; 2. Set application language: read the request header Accept-Language through middleware or detect language through URL prefix, set the current language using app()->setLocale(), and register the middleware in Kernel.php; 3. Use translation functions: use __(), trans() or @lang in the view, and use __() that supports fallback; 4. Support parameters and plural: Use placeholders in translation strings such as: n

Aug 22, 2025 pm 02:31 PM

laravel globalization

How to build a single-page application with Laravel and React

SetupLaravelasanAPIbackendbycreatingaproject,configuringthe.envfile,anddefiningJSON-returningroutesinapi.php.2.InstallReactmanuallyusingVite,configurevite.config.js,andcreateanentrypointapp.jsxalongwithasamplecomponentthatfetchesdatafromtheLaravelAPI

Aug 22, 2025 pm 02:29 PM

How to work with collections in Laravel

Laravelcollectionsprovideafluentandexpressivewaytomanipulatearraysofdata.1.WhenretrievingmultiplerecordsviaEloquent,Laravelreturnsacollection,enablingaccesstopowerfulmethodslikecount()andfirst().2.Keymethodsincludefilter(),where(),whereIn()forfilteri

Aug 22, 2025 pm 02:06 PM

How to pass data from controller to view in Laravel

Passing arrays using the view() helper function is the most common way, suitable for small and medium-sized data volumes; 2. Use the with() method to pass variables in chain or group, suitable for conditional addition of data; 3. When the variable name is the same as the view key name, using the compact() function can make the code more concise; 4. Use view()->share() to share data with all views, suitable for global data such as site name or number of users; 5. For complex logic, use ViewComposers to inject data into specific views such as sidebars or menus. Each method has its own applicable scenarios based on scope and complexity. The core is that the array key name will automatically change to the variable name in the Blade template, so that it will be directly in the view.

Aug 22, 2025 pm 01:54 PM

How to handle payments with Stripe in Laravel

UseLaravelCashierforsubscription-basedbillingbyinstallingitviacomposerrequirelaravel/cashier,runningphpartisancashier:installandphpartisanmigratetosetupthedatabase,configuringSTRIPE_KEYandSTRIPE_SECRETin.env,addingtheBillabletraittoyourusermodel,crea

Aug 22, 2025 am 09:18 AM

laravel stripe

How to use Blade templating in Laravel

Blade is Laravel's template engine for writing concise, readable PHP views. 1. Use {{$variable}} to output variables (auto escape), {!!$content!!} to output unescaped content; 2. Use @if, @foreach and other instructions to replace the native PHP control structure; 3. Define the layout through @extends, insert the content, and @produce, add styles or scripts to the stack; 4. Use @include to include subviews, pass data, or use Laravel7 components (such as); 5. Use @auth, @guest, @can, @cannot, @isset and other built-in references

Aug 22, 2025 am 09:05 AM

laravel Blade template

How to implement real-time features with Laravel Echo?

SetupthebroadcastingdriverlikePusherin.envandenableBroadcastServiceProviderinconfig/app.php.2.CreateabroadcasteventimplementingShouldBroadcastanddispatchitfromacontroller.3.InstallLaravelEchoandpusher-js,thenconfigureEchowithPushercredentialsinyourJa

Aug 22, 2025 am 06:08 AM

How to use response macros in Laravel

Laravel allows to create reusable custom HTTP responses by defining response macros. First, use Response::macro to register macros in the boot method of AppServiceProvider, such as defining two macros apiSuccess and apiError to return standardized JSON structures. Then, these macros are called in the controller or route through response()->apiSuccess() or response()->apiError() to achieve a consistent API response format. You can also create macros containing header information, such as withHeader. It is recommended to use a descriptive name for the macro and keep the responsibility single.

Aug 22, 2025 am 04:54 AM