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Technical Articles

PHP Framework

Laravel

How to display validation errors in Laravel

Usethevalidate()methodinyourcontrollertodefinevalidationrules,whichautomaticallyredirectsbackwitherrorsifvalidationfails.2.InBladetemplates,displayallerrorsatonceusing@if($errors->any())with$errors->all(),orshowfield-specificmessagesusingthe@er

Aug 11, 2025 pm 07:13 PM

How to implement content security policy (CSP) in Laravel

Createamiddlewareusingphpartisanmake:middlewareAddCspHeadersandsettheCSPheaderinthehandlemethod,applyingitonlyinproductionwithastrictpolicy.2.Registerthemiddlewaregloballyin$middlewarearrayorasaroute-specificaliasinapp/Http/Kernel.php.3.CustomizetheC

Aug 11, 2025 pm 05:20 PM

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

InstallLaravelandsetupVueusingLaravelUIormanualnpminstallation.2.Configureacatch-allrouteinweb.phptoservetheVueappviaaBladetemplate.3.SetupVueRouterforclient-sidenavigationandcreateVuecomponents.4.UseLaravelMixtocompileassetsandgenerateapp.cssandapp.

Aug 11, 2025 pm 05:18 PM

How to use conditional clauses in Eloquent queries

Usewhen()toapplyqueryconstraintsonlywhenaconditionistruthy,passingthequeryandvaluetotheclosure.2.CombinestandardEloquentmethodslikewhere()andorWhere()withinifstatementsforsimpleconditionallogic,thoughthisislesselegant.3.LeveragewhenFilled()andwhenNot

Aug 11, 2025 pm 05:10 PM

How to set up and configure a new Laravel project?

InstallLaravelusingComposerortheLaravelinstaller.2.Navigatetotheprojectdirectoryandcopy.env.exampleto.env,thengenerateanappkeywithphpartisankey:generate.3.Configuredatabasesettingsinthe.envfileandensurethedatabaseiscreated.4.Servetheapplicationusingp

Aug 11, 2025 pm 04:27 PM

How to lazy load relationships in Laravel

LazyloadinginLaravelautomaticallyloadsrelationshipswhenaccessedaftermodelretrieval,suchasaccessing$user->poststriggeringaqueryonlyatthatmoment.2.ItworksbydefiningrelationshipsinEloquentmodelslikehasManyorbelongsTo,allowingautomaticloadingwhenthepr

Aug 11, 2025 pm 04:25 PM

How to work with notifications in Laravel?

Laravelnotificationscanbeeasilymanagedusingitsbuilt-insystem;1.Generateanotificationclassviaphpartisanmake:notificationInvoicePaidwhichcreatesaclasswithvia()andchannel-specificmethods;2.Sendnotificationsusingthenotify()methodonamodelortheNotification

Aug 11, 2025 pm 04:22 PM

Laravel whereHas and orWhereHas examples

whereHas is used to query the main model that meets the conditions of the association model, orWhereHas is used for extension or relational conditions. 1. Use whereHas to filter models with specific association records, such as finding users who have published articles; 2. Add multiple where conditions in whereHas to implement AND logic, such as the title contains 'Laravel' and the status is published; 3. orWhereHas to implement OR relationships, such as the user has published articles or draft articles; 4. Complex nesting can be combined with where and whereDoesntHave, and use closure grouping to control priority; 5. Support multi-layer associations such as 'p

Aug 11, 2025 pm 04:02 PM

How to work with facades in Laravel

FacadesinLaravelprovideastaticinterfacetoclassesintheservicecontainer,enablingcleanandexpressiveaccesstocoreservices.1.FacadeslikeCache::get(),Mail::send(),andDB::table()arenotactualstaticmethodsbutuse__callStatic()toresolveunderlyingservices.2.Touse

Aug 11, 2025 pm 03:55 PM

How to minify assets in Laravel

UsenpmrunbuildwithLaravelVite(Laravel9 )asitautomaticallyminifiesCSSandJavaScriptduringproductionbuildsthroughRollup.2.Forolderversions,usenpmrunproductionwithLaravelMix,whichenablesminificationandversionhashingwhenNODE_ENVissettoproduction.3.Optimiz

Aug 11, 2025 pm 03:00 PM

How to create a registration and login system in Laravel

Install Laravel and configure .env database connection; 2. Use composerrequirelaravel/breeze--dev and run phpartisanbreeze:install to build an authentication system; 3. Execute phpartisanmigrate to create user tables; 4. Breeze automatically generates login, registration, logout and other routes and includes CSRF protection; 5. If you need to add fields (such as phone), modify the migration file, registration form view and CreateNewUser.php logic, and update the $fillable attribute of the User model; 6. Use middleware('auth'

Aug 11, 2025 pm 02:43 PM

How to deploy a Laravel application with Docker?

Create a Dockerfile to configure the Laravel application environment, install PHP dependencies and set the working directory; 2. Write docker-compose.yml to define app, MySQL and Redis services, configure ports, environment variables and volumes; 3. Configure Laravel's .env file using the Docker service name as the database host, generate application keys and run migrations; 4. Use docker-composeup-d--build to build and start containers; 5. Use nginx PHP-FPM in the production environment, disable code volume mount, enable HTTPS and optimize images; 6. Push code to Git, deploy Dock on the server

Aug 11, 2025 pm 02:26 PM

laravel docker

How to handle file uploads in Laravel

Configure the file system, use the public disk and run the phpartisanstorage:link command to create symbolic links; 2. Create a form containing enctype="multipart/form-data"; 3. Verify through validate() in the controller and store files using the store() method; 4. Use mimes, max, dimensions and other rules for security verification; 5. Customize file names through storeAs() or use automatic hash names to avoid conflicts; 6. Use Storage::url() to generate access URLs and display them in Blade; 7. Use Storage to storeag

Aug 11, 2025 pm 02:01 PM

laravel File Upload

How to integrate a WYSIWYG editor in Laravel?

IncludeTinyMCEviaCDNintheBladetemplateusingavalidAPIkey.2.InitializetheeditoronatextareawithJavaScriptconfigurationforplugins,toolbar,andstyling.3.Useenctype="multipart/form-data"intheformandhandlecontentsubmissionintheLaravelcontrollerwith

Aug 11, 2025 pm 12:13 PM