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Technical Articles

PHP Framework

Laravel

How to encrypt and decrypt data in Laravel?

Laravel uses Crypt facade to implement data encryption and decryption. First, ensure that there is a valid APP_KEY in the .env file and generate it through phpartisankey:generate; 1. Use Crypt::encryptString() to encrypt strings, such as $encrypted=Crypt::encryptString('Hello, thisissecret!'); 2. Use Crypt::decryptString($encrypted) to decrypt data, and use try-catch to catch DecryptException exception; 3. In the model, you can use the accessor and

Jul 30, 2025 am 03:23 AM

laravel encrypt and decode

How to use route model binding in Laravel?

Laravel's routing model binding can automatically inject model instances into the route or controller method without manually querying the database; 2. Implicit binding requires that the routing parameter name is consistent with the type prompt variable name of the controller method, Laravel will automatically load the model according to the ID and return 404. If not found; 3. By rewriting the getRouteKeyName method in the model, you can customize the query field, such as using slug instead of id; 4. Explicit binding is registered in the RouteServiceProvider through Route::bind, which is suitable for scenarios where custom logic is required, such as finding users based on username; 5. The soft deletion model is excluded by default. If you need to include soft deleted records, you can explicitly bind it.

Jul 30, 2025 am 03:20 AM

laravel Routing model binding

How to use Eloquent ORM in Laravel?

It is not difficult to write Laravel applications using EloquentORM. Its core lies in mapping database tables into PHP objects to reduce the writing of original SQL. 1. Creating a model and migration file can be generated in one click through the Artisan command and defining field and table name mappings. 2. The operations of adding, deleting, modifying and searching are concise, and support all, find, where and other methods for querying, and implementing data operations through new, save, and delete. 3. The association model can handle one-to-many and many-to-one relationships, and define posts and user methods in the model to achieve association access. 4. Query scope is used to encapsulate common query conditions, such as defining scopePublished method to only check published articles and improve code

Jul 30, 2025 am 03:12 AM

Laravel where clause multiple conditions

The chain where condition is connected with AND through multiple ->where() methods, which is suitable for most scenarios; 2. The array incoming conditions can use [['status','=','active'],['age','>',18]] as parameters to set the AND condition in batches; 3. Use ->orWhere() to add OR condition, pay attention to its priority relationship with AND; 4. Nested conditions are grouped through closures, such as ->where(function($q){$q->where('status','active')->where('age','>',18);}

Jul 30, 2025 am 01:57 AM

How to integrate a payment gateway like Stripe in Laravel?

First register and obtain the API key on the Stripe official website, install the stripe/stripe-php extension package and configure the key to the .env file; 2. Create a PaymentController and define checkout, pay, success and error routes; 3. Use the Blade template to build a payment form, load the credit card input elements through Stripe.js and generate a token; 4. Use secretkey and Charge classes in the processPayment method to create payments, process success or failure responses; 5. Optional but recommended to configure a webhook to handle asynchronous events such as payment success and refund, and on Stripe

Jul 30, 2025 am 01:55 AM

laravel Payment integration

How to implement feature flags in a Laravel app?

Chooseafeatureflagstrategysuchasconfig-based,database-driven,orthird-partytoolslikeFlagsmith.2.Setupadatabase-drivensystembycreatingamigrationforafeature_flagstablewithname,enabled,andrulesfields,thenrunthemigration.3.CreateaFeatureFlagmodelwithfilla

Jul 30, 2025 am 01:45 AM

laravel

How to use polymorphic relationships in Laravel?

PolymorphicrelationshipsinLaravelallowamodeltobelongtomultipleothermodelsthroughasingleassociation,enablingsharedresourceslikecommentsorimagestobeattachedtovariousmodeltypessuchaspostsandvideos.1.Apolymorphicrelationshiprequirestwodatabasecolumns:{mo

Jul 30, 2025 am 01:10 AM

laravel 多態(tài)關(guān)系

What is Laravel Telescope for debugging?

LaravelTelescope is a debugging and monitoring tool designed for Laravel application development. 1. It centrally displays detailed information such as requests, database queries, exceptions, logs, emails, notifications, cache operations and scheduled tasks through a simple web interface; 2. Developers can install and execute phpartisantelescope:install and phpartisanmigrate through composerrequirelaravel/telescope for configuration; 3. After installation, it can access/telescope path in the local environment, and supports real-time tracking of request headers, input data, session content, response status and database query execution.

Jul 30, 2025 am 12:49 AM

Common Security Measures in Laravel.

Laravel provides a variety of built-in security mechanisms to protect against common vulnerabilities. 1. Prevent CSRF attacks: Laravel enables CSRF protection by default, and verifies the request source through the _token field in the form. It is recommended to use the @csrf directive to automatically add tokens. Sanctum or Passport should be used for authentication in API or front-end separation projects to avoid closing VerifyCsrfToken middleware; 2. Encrypt passwords with Bcrypt: Laravel uses Bcrypt to encrypt user passwords by default. It is recommended to use Hash::make() method when registering or modifying passwords. It is recommended to use Authfacade to automatically handle login verification. Password fields are

Jul 29, 2025 am 03:55 AM

laravel Safety

What is Eloquent ORM in Laravel?

EloquentORM is Laravel's built-in object relational mapping system. It operates the database through PHP syntax instead of native SQL, making the code more concise and easy to maintain; 1. Each data table corresponds to a model class, and each record exists as a model instance; 2. Adopt active record mode, and the model instance can be saved or updated by itself; 3. Support batch assignment, and the $fillable attribute needs to be defined in the model to ensure security; 4. Provide strong relationship support, such as one-to-one, one-to-many, many-to-many, etc., and you can access the associated data through method calls; 5. Integrated query constructor, where, orderBy and other methods can be called chained to build queries; 6. Support accessors and modifiers, which can format the number when obtaining or setting attributes.

Jul 29, 2025 am 03:50 AM

laravel orm

How to create a custom validation rule in Laravel?

There are three main ways to create custom verification rules in Laravel, suitable for different scenarios. 1. Use Rule class to create reusable verification logic: generate a class through phpartisanmake:ruleValidPhoneNumber, and introduce and use it in the controller, suitable for complex and reusable situations; 2. Use closures in verification rules: directly write one-time verification logic in the validate method, such as checking the length of the username, suitable for simple and only once-using scenarios; 3. Add custom rules in FormRequest: add closures or introduce Rule classes in the rules() method of form requests, which are clear and easy to manage; in addition, you can also use att

Jul 29, 2025 am 03:41 AM

How to implement a shopping cart in Laravel?

Use the session to store the visitor shopping cart, and the database stores the logged-in user shopping cart for persistence; 2. Create a cart table to store user shopping cart data; 3. Create a CartService service class to encapsulate the addition, deletion, modification and search logic; 4. Create a CartController controller to handle shopping cart operations; 5. Define routes in web.php; 6. Create a Blade template to display the cart content; 7. Merge the session shopping cart to the database when the user logs in. This solution implements a hybrid shopping cart system that supports visitors and certified users, and is durable, scalable and meets practical application needs.

Jul 29, 2025 am 03:40 AM

How to add a sitemap to a Laravel application?

Install the spatie/laravel-sitemap package: Install and introduce the spatie/laravel-sitemap package through Composer to support sitemap generation function; 2. Optional configuration: publish configuration files to customize cache, tags or style settings; 3. Create route generation sitemap: Create routes in web.php using SitemapGenerator and return sitemap.xml; 4. Recommended use planning tasks: Create Artisan command and generate sitemap regularly through Laravel scheduler to improve performance; 5. Service static files: routes only return generated static sites

Jul 29, 2025 am 03:30 AM

What is the difference between events and observers in Laravel?

Eventsareusedforgeneralapplication-wideactions,whileobserversarespecificallyforEloquentmodellifecycleevents;1.Eventsaremanuallydispatchedandcanbelistenedtobymultiplelistenersfordecoupledbusinesslogic,2.Observersautomaticallyrespondtomodeleventslikecr

Jul 29, 2025 am 03:22 AM

laravel event listening