Discuss the causes and solutions of laravel running errors

LaravelEloquentsupportssubqueriesinSELECT,FROM,WHERE,andORDERBYclauses,enablingflexibledataretrievalwithoutrawSQL;1.UseselectSub()toaddcomputedcolumnslikepostcountperuser;2.UsefromSub()orclosureinfrom()totreatsubqueryasderivedtableforgroupeddata;3.Us

InstallLaravelCashierviaComposerandconfiguremigrationandBillabletrait.2.CreatesubscriptionplansinStripeDashboardandnoteplanIDs.3.CollectpaymentmethodusingStripeCheckoutandstoreitviasetupintent.4.SubscribeusertoaplanusingnewSubscription()anddefaultpay

SetupdomainorlocalenvironmentforsubdomainsupportusingLaravelValet,Homestead,orhostsfileentrieslike127.0.0.1admin.yourapp.test;2.Definewildcardsubdomainroutesinroutes/web.phpusingRoute::domain('{account}.yourapp.com')tocapturesubdomainparameters;3.Cre

Define the schedule: Use Schedule object to configure Artisan command scheduling in the schedule method of the App\Console\Kernel class; 2. Set the frequency: Set the execution frequency through chain methods such as everyMinute, daily, hourly or cron syntax; 3. Pass parameters: Use arrays or strings to pass parameters to the command; 4. Scheduling the shell command: Use exec method to run system commands; 5. Add conditions: Use when, weekdays and other methods to control the execution timing; 6. Output processing: Use sendOutputTo, appendOutputTo or emailOutputTo to record or

Laravel has introduced smooth string operations based on Illuminate\Support\Stringable since version 7. The answer is to use Str::of() to start chain calls. 1. Create a Stringable instance through Str::of('string') and call the method chained. 2. Common methods include trim, replace, append, slug, upper, etc. for formatting. 3. Use when($condition, $callback) to implement conditional conversion. 4. Use after, before, substr and other methods to extract string fragments. 5. It can be used to clear the actual application.

Create a Laravel project and install Sanctum and Pusher packages; 2. Configure Pusher credentials and set up broadcast drivers; 3. Create a message model and migration; 4. Create a MessageSent event that implements ShouldBroadcast; 5. Set up Sanctum authentication and API routing and implement a message controller; 6. Install and configure LaravelEcho and PusherJS in the front-end; 7. Use Echo to join the chat channel and listen to messages; 8. Define broadcast authorization logic in channels.php; 9. Start the service and test real-time message delivery. You can choose to build a LaravelWebSockets service, and the entire process is through Lar

SetupLaravelandinstalldependenciesincludingLaravelSanctumandLaravelEcho.2.ConfigurePusherasthebroadcastdriverin.envandenabletheBroadcastServiceProvider.3.CreateaMessagemodelwithamigrationthatincludesuser_idandmessagefields.4.Implementauthenticationus

Laravel's request life cycle goes through 7 stages from user-initiating a request to response return: 1. The request starts with public/index.php, loads the automatic loader and creates an application instance; 2. The HTTP kernel loads configuration, environment and service providers through boot classes; 3. The request handles security, session and other tasks through global middleware; 4. The router matches the request URI and method, executes the corresponding closure or controller, and applies routing middleware; 5. The controller instantiates through dependency injection, executes logic and returns views, JSON, redirects and other responses; 6. The response is encapsulated as a SymfonyResponse object and outputs through $response->send(); 7. Response sends