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Technical Articles

PHP Framework

Laravel

How to share variables with all views in Laravel

UseViewComposersviaaserviceprovidertosharevariablesacrossallviewsinLaravel;2.RegisterthecomposerinthebootmethodofaserviceproviderusingView::composer('*',...)toapplyitglobally;3.Optionally,createadedicatedcomposerclasswithphpartisanmake:view-composerf

Aug 12, 2025 am 12:08 AM

How to build a single-page application with Laravel and Inertia.js

Install Laravel and create a project, configure the database and run the migration; 2. Install Inertia.js and its front-end dependencies (such as Vue3) through Composer and npm; 3. Use Inertia::render() in the route to return the page, and generate middleware through phpartisaninertia:middleware and register it in Kernel.php; 4. Create resources/js/app.js as the front-end entry file, and make sure that app.blade.php contains the root element of id="app"; 5. Create Ho under resources/js/Pages/

Aug 11, 2025 pm 10:42 PM

How to manage translations and localization files in Laravel?

Laravel's translation system implements multi-language management through language files in the lang directory. 1. Language files are stored in directories according to language code, and support PHP arrays or JSON format; 2. Use the __() function or @lang directive to call translation in code and view; 3. Switch languages through App::setLocale(), combined with middleware or session persistent user selection; 4. Best practices include splitting files by function, using structured key names, JSON for simple overlay, integrated translation tools and production environment cache configuration; 5. Support dynamic variable replacement and plural form processing, and implementing conditional plural output through trans_choice. Reasonably organize translation files and follow naming specifications to effectively improve multilingualism

Aug 11, 2025 pm 08:22 PM

How to use raw database queries in Laravel

UseDB::select()forrawSELECTquerieswithparameterbindingtopreventSQLinjection.2.InjectrawexpressionssafelyintoQueryBuilderusingselectRaw(),whereRaw(),havingRaw(),andorderByRaw()withbindingsinsteadofDB::raw()forsecurity.3.Runnon-selectquerieslikeCREATEo

Aug 11, 2025 pm 07:25 PM

laravel Database query

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