Learn more about how to use the Laravel Redis extension

ToworkeffectivelywithpivottablesinLaravel,firstaccesspivotdatausingwithPivot()orwithTimestamps(),thenupdateentrieswithupdateExistingPivot(),managerelationshipsviadetach()andsync(),andusecustompivotmodelswhenneeded.1.UsewithPivot()toincludespecificcol

Laravelprovidesacleanandflexiblewaytosendnotificationsviamultiplechannelslikeemail,SMS,in-appalerts,andpushnotifications.Youdefinenotificationchannelsinthevia()methodofanotificationclass,andimplementspecificmethodsliketoMail(),toDatabase(),ortoVonage

TosetupemailnotificationsinLaravel,firstconfiguremailsettingsinthe.envfilewithSMTPorservice-specificdetailslikeMAIL\_MAILER,MAIL\_HOST,MAIL\_PORT,MAIL\_USERNAME,MAIL\_PASSWORD,andMAIL\_FROM\_ADDRESS.Next,testtheconfigurationusingMail::raw()tosendasam

Methods to manage database state in Laravel tests include using RefreshDatabase, selective seeding of data, careful use of transactions, and manual cleaning if necessary. 1. Use RefreshDatabasetrait to automatically migrate the database structure to ensure that each test is based on a clean database; 2. Use specific seeds to fill the necessary data and generate dynamic data in combination with the model factory; 3. Use DatabaseTransactionstrait to roll back the test changes, but pay attention to its limitations; 4. Manually truncate the table or reseed the database when it cannot be automatically cleaned. These methods are flexibly selected according to the type of test and environment to ensure the reliability and efficiency of the test.

In Laravel, the choice of Contracts and Facades depends on the dependency structure and coupling degree. Contracts are interfaces for easy testing and replacement; Facades provides static syntax sugar, suitable for simple scenarios. 1.Contracts are used to clarify dependencies, improve testability and follow SOLID principles; 2. Facades are suitable for situations where concise syntax is pursued without frequent replacement implementations; 3. Helper functions are more concise but are not conducive to testing and maintenance. Comprehensive use of both is better: use Contracts for complex logic, and use Facades for simple operations.

Laravel performance optimization can improve application efficiency through four core directions. 1. Use the cache mechanism to reduce duplicate queries, store infrequently changing data through Cache::remember() and other methods to reduce database access frequency; 2. Optimize database from the model to query statements, avoid N 1 queries, specifying field queries, adding indexes, paging processing and reading and writing separation, and reduce bottlenecks; 3. Use time-consuming operations such as email sending and file exporting to queue asynchronous processing, use Supervisor to manage workers and set up retry mechanisms; 4. Use middleware and service providers reasonably to avoid complex logic and unnecessary initialization code, and delay loading of services to improve startup efficiency.

CachinginLaravelcanbeoptimizedthroughmultiplestrategiestailoredtospecificusecases.1)Userouteorpagecachingforstaticcontent,suchasanAboutUspage,bywrappingtheroutelogicwithcache()->remember()tostorerenderedHTMLandreduceserverload.2)Cachequeryresultsw

LaravelSanctum is suitable for simple, lightweight API certifications such as SPA or mobile applications, while Passport is suitable for scenarios where full OAuth2 functionality is required. 1. Sanctum provides token-based authentication, suitable for first-party clients; 2. Passport supports complex processes such as authorization codes and client credentials, suitable for third-party developers to access; 3. Sanctum installation and configuration are simpler and maintenance costs are low; 4. Passport functions are comprehensive but configuration is complex, suitable for platforms that require fine permission control. When selecting, you should determine whether the OAuth2 feature is required based on the project requirements.