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Technical Articles

PHP Framework

YII

How to use GridView in Yii with sorting and filtering

Set up a search model (such as PostSearch) and implement the search() method to return data with filter conditions through ActiveDataProvider; 2. Instantiate the search model in the controller and pass the dataProvider to the view; 3. Use the GridView component in the view and configure filterModel to automatically implement the sorting and filtering functions.

Sep 10, 2025 am 04:14 AM

yii GridView

How to implement pagination for large data sets in Yii

Using ActiveDataProvider combined with Pagination is the standard method for handling large data set paging in Yii2. First, use ActiveDataProvider to configure query, paging size and sorting in the controller, and then use GridView to automatically render paging controls in the view; for performance optimization, when the data volume is huge, COUNT(*) overhead should be avoided, and totalCount can be set to false or use estimates; further improve performance, cursor-based keyset pagination can be used to use index columns (such as ids) for range query to avoid performance degradation caused by OFFSET, and is suitable for infinite scrolling fields.

Sep 10, 2025 am 01:15 AM

How to use the Yii debug toolbar

Installtheyii2-debugextensionviaComposerasadevelopmentdependencyusingcomposerrequire--devyiisoft/yii2-debug.2.Ensurethedebugmoduleisenabledinyourapplicationconfigurationbyaddingittothebootstrapandmodulessectionsinconfig/web.phpwhenYII_ENV_DEVistrue.3

Sep 09, 2025 am 04:17 AM

How to implement caching in a Yii application

After configuring the cache component, select appropriate storage (such as Redis), use the set/get method to cache data in the controller or model, and implement page and fragment cache through PageCache and FragmentCache, and automatically update the cache with dependencies such as DbDependency to improve Yii application performance.

Sep 09, 2025 am 02:18 AM

cache yii

How to use Gii code generator in Yii

GiiisacodegenerationtoolinYiithatacceleratesdevelopmentbyautomatingthecreationofmodels,controllers,andviews.ToenableGii,addittothemodulesandbootstrapsectionsinconfig/web.phpunderYII_ENV_DEVforsecurity.AccessGiiviahttp://your-app-url/index.php?r=gii,t

Sep 08, 2025 am 04:53 AM

yii gii

How to use internationalization (i18n) in Yii

Configure application language settings, including the default language, supported language and translation file path; 2. Create subdirectories according to language under @ap/messages and write PHP-format translation files; 3. Use the Yii::t() method to implement message translation in the code; 4. Dynamically switch languages ??through URL, session or browser header; 5. Call Yii::t() anywhere in view, model, controller, etc. for translation; 6. Use plural syntax to process multiple-select messages; 7. Use the formatter component to achieve localized formatting of dates, numbers, and currency; 8. Optionally use the message command to automatically extract messages to be translated. Through the above steps, Yii application can support multi-language and be fully operational for global users

Sep 08, 2025 am 12:03 AM

yii i18n

How to handle file uploads securely in Yii

Verify file type: Use Yii's file validator to check the extension, MIME type and file size to ensure verification on the server; 2. Generate a secure file name: Rename the file through md5 or UUID mechanisms to prevent path traversal and overwrite; 3. Store files outside the web root directory: Store uploaded files in a non-public directory and safely distribute them through the controller; 4. Check the file content: Use getimagesize or image processing library to verify the authenticity of the image, and scan with antivirus software if necessary; 5. Set directory permissions: prohibit uploading directories to execute scripts, and prevent PHP execution through chmod and server configurations (such as .htaccess or Nginx rules); 6. Enable CSRF and access control

Sep 07, 2025 am 05:24 AM

File Upload yii framework

How to set up a cron job for a Yii console command

TosetupaYiiconsolecommandasacronjob,firstcreatethecommandinconsole/controllers/MyController.php,testitviaphpyiimy/run,thenscheduleitusingcrontab-ewithalinelike/5*cd/path/to/project&&/usr/bin/phpyiimy/run>>/path/to/runtime/logs/cron.log2

Sep 07, 2025 am 12:47 AM

yii cron job

How to create a dynamic dropdown list in a Yii form

First, create two drop-down boxes in the form, listen to category selection changes through JavaScript, use the AJAX request controller to return the corresponding subcategory JSON data, dynamically fill the subcategory drop-down boxes, and trigger the event to preload the subcategory during editing.

Sep 06, 2025 am 07:08 AM

yii framework drop-down list

How to implement a 'remember me' functionality for login in Yii

ImplementgetAuthKey()andvalidateAuthKey()intheUsermodeltohandletheauthenticationkeyforauto-login.2.Generateandstorearandomauth_keyusingYii::$app->security->generateRandomString()duringuserregistration.3.Intheloginprocess,passaduration(e.g.,30da

Sep 06, 2025 am 07:01 AM

Yii vs. Other PHP Frameworks: Key Differentiators and Advantages

YiishouldbechosenoverotherPHPframeworksforitssuperiorperformance,developerproductivity,andsecurityfeatures.1)Yii'sActiveRecordsimplifiesdatabaseinteractions,reducingboilerplatecode.2)TheGiitoolacceleratesdevelopmentbygeneratinghigh-qualityCRUDoperati

Sep 05, 2025 am 08:32 AM

php framework yii framework

How to work with modules in Yii

Create a module requires defining the module class and establishing a directory structure, such as modules/admin/AdminModule.php, the class needs to inherit yii\base\Module; 2. Register the module in the modules array of config/main.php so that it can be accessed through http://yoursite.com/admin; 3. The controller, view, and model are stored independently in the module, and the controller namespace is app\modules\admin\controllers, and the view is located in views/ControllerID/; 4. You can set properties such as layout in the module configuration and use Yii::$app

Sep 05, 2025 am 07:23 AM

module yii

How to configure database connection in Yii

Configurethedatabasecomponentinconfig/db.phpormainconfigfileusingyii\db\ConnectionwithDSN,username,password,andcharset.2.UseappropriateDSNformatforyourdatabase(MySQL,PostgreSQL,SQLite,SQLServer)andensurecorrespondingPDOextensionisenabled.3.Enhanceper

Sep 04, 2025 am 09:10 AM

How to handle AJAX requests in Yii

YiisimplifiesAJAXhandlingbyprovidingtoolstodetectAJAXrequests,returnJSONresponses,andmanageCSRFprotection.InYii2,useYii::$app->request->isAjaxtodetectAJAXcallsandsetresponse->format=Response::FORMAT_JSONforautomaticJSONencoding.Yii1usesYii::

Sep 04, 2025 am 02:53 AM

ajax yii