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Technical Articles

PHP Framework

Laravel

What is Laravel Scout for full-text search?

LaravelScoutisadriver-basedpackagethatsimplifiesfull-textsearchimplementationinLaravelappsbysyncingEloquentmodelswithsearchengines.1.IteliminatesslowLIKEqueriesbyintegratingwithpowerfultoolslikeAlgolia,Meilisearch,ordatabasefull-textsearch.2.Keyfeatu

Jul 31, 2025 am 08:44 AM

How to use database transactions in Laravel?

UseDB::transaction()forautomaticcommitandrollback;2.ApplymanualcontrolwithDB::beginTransaction(),DB::commit(),andDB::rollBack()forcomplexlogic;3.WrapEloquentmodeloperationsintransactionstomaintaindataintegrity;4.SpecifyretryattemptsinDB::transaction(

Jul 31, 2025 am 08:39 AM

How to use updateOrCreate in Eloquent?

updateOrCreate is used in Laravel to update or create records according to the search conditions. It first looks for matching records. If there is, the specified field will be updated. Otherwise, a new record will be created. For example, UserPreference::updateOrCreate(['user_id'=>$user->id],['theme'=>'dark','language'=>'en','notifications_enabled'=>true]) will look up and update or create user preferences based on user_id. This method automatically processes the timestamp and returns the model instance, which is suitable for

Jul 31, 2025 am 07:32 AM

eloquent

How to customize the key for route model binding to use a slug?

In Laravel, using slug instead of id for routing model binding can be achieved by overriding the getRouteKeyName method. First, rewrite the getRouteKeyName method in the model to return 'slug'; second, it is recommended to add a unique index to the slug field to ensure accuracy and check the uniqueness of the existing data; finally, keep the route and controller code unchanged, Laravel will automatically parse the model through slug. In addition, pay attention to issues such as clearing routing cache, handling soft deletion situations, and field naming consistency.

Jul 31, 2025 am 07:17 AM

How to write tests in Laravel?

SetupthetestingenvironmentusingLaravel’sbuilt-inphpunit.xmland.env.testingwithSQLiteinmemory.2.WritefeatureteststotestfullHTTPinteractions,usinghelperslike$this->post()andassertRedirect().3.Writeunittestsforisolatedclasseslikeservices,ensuringthey

Jul 31, 2025 am 06:43 AM

laravel test

How to log errors in Laravel?

LaravelautomaticallylogserrorsusingMonolog,andyoucanmanuallylogwiththeLogfacade;1.AutomaticerrorloggingoccursviatheconfiguredLOG_CHANNELin.env,defaultingtostorage/logs/laravel.logwithoutadditionalcode;2.UseLog::error('message',['context'])forcustomlo

Jul 31, 2025 am 04:43 AM

How to use Laravel Socialite for Google login?

InstallLaravelSocialiteviaComposer.2.CreateOAuthcredentialsinGoogleCloudConsoleandsetredirectURI.3.AddGOOGLE_CLIENT_ID,GOOGLE_CLIENT_SECRET,andGOOGLE_REDIRECT_URIto.envandconfigureinconfig/services.php.4.DefineroutesforGoogleloginandcallback.5.Create

Jul 31, 2025 am 04:33 AM

How to deploy a Laravel application to a server?

InstallrequiredserversoftwareincludingNginx,PHP8.1 ,Composer,anddatabase;2.UploadLaravelappviaGitorSFTPandruncomposerinstall--optimize-autoloader--no-dev;3.Configure.envwithproductionsettings,generateappkey,andsetproperpermissionsusingchownandchmod;4

Jul 31, 2025 am 03:52 AM

Implementing Caching using Redis with Laravel.

RedisisaneffectivecachingsolutioninLaravelbecauseitofferslow-latencydataaccess,supportsmultipledatatypes,andintegratesseamlesslyviaLaravel’sCachefacade.1)Installpredis/predisorusethePHPRedisextension.2)Updatethe.envfiletoconfigureRedisasthecachedrive

Jul 31, 2025 am 01:44 AM

How to optimize database queries in Laravel?

Useeagerloadingwithwith()topreventN 1queriesbyloadingrelationshipsinasinglequeryinsteadofmultiple.2.Selectonlyrequiredfieldsusingselect('column')toreducememoryandimprovespeed.3.Cachefrequentlyaccessed,rarelychangeddatawithCache::remember()andinvalida

Jul 31, 2025 am 01:21 AM

laravel Database optimization

How to perform a raw SQL query in Laravel?

There are three main ways to run raw SQL queries in Laravel. First, use the DB::select method to execute the original query, pass the SQL string and bind parameter array to prevent SQL injection and return the resulting object array; second, use DB::statement() to perform insert, update or delete operations; finally, use DB::raw() to embed raw SQL fragments in Eloquent queries, which are suitable for complex queries or aggregation logic, but excessive use should be avoided to maintain maintainability. Always use parameter binding to ensure security and use raw SQL only when necessary (such as complex queries, performance optimization, or legacy databases) to reduce dependency on specific database engines.

Jul 31, 2025 am 12:58 AM

How to use the tap helper function in Laravel?

tap() returns the original value, allowing side-effect operations to be performed without interrupting chain calls; 1. Used to save the model and return instances, such as tap(newUser([...]))->save(); 2. Modify the object while maintaining chain calls, such as tap($user)->update(['active'=>false]); 3. Record intermediate values during debugging, such as tap(...)->toArray(); it always returns the original value rather than the callback result, is suitable for objects, arrays or basic types, and is ideal for processing logs, events or saving operations.

Jul 31, 2025 am 12:38 AM

How Laravel uses Dependency Injection.

Laravelusesdependencyinjection(DI)toenhanceflexibilityandtestabilitybylettingclassesreceivedependenciesfromoutside.1.DIinLaraveliscommonlyseenincontrollers,jobs,andevents,wheredependenciesareautomaticallyresolved.2.Type-hintingaclassinacontrollermeth

Jul 30, 2025 am 05:22 AM

laravel dependency injection

How to configure Nginx for a Laravel application?

To correctly configure Nginx to run Laravel applications, you must 1. Set documentroot to the public directory; 2. Use try_files to implement URL rewriting; 3. Configure PHP-FPM to process PHP files; 4. Disable access to sensitive files and directories. The specific steps are: First, set root to /var/www/laravel/public to ensure that the entry file is public/index.php, and avoid exposing sensitive files such as .env; then use try_files$uri$uri//index.php?$query_string in location/ to implement the front-end controller mode, please

Jul 30, 2025 am 05:20 AM