现在情况是,我点了一下a
链接,是 post
请求,参数是 get
传递的, actionTripDays
方法执行了三遍,表里被插入了三条数据,应该只执行一次,插入一条数据的,这是为毛呢??求帮助
但我在,if
里,dump($position)
却只有一次输出。
<code><a href="<?=%20Url::toRoute(%5B'trip-days',%20'id'%20=>%20%24logId,%20'position'%20=>%20'end'%5D)%20?>" class="add-one-day" data-method="post" rel="nofollow">+ 新增后一天</a> public function actionTripDays($id) { $model = $this->findModel($id); // 最开始是这样写的,执行了两遍 if (!empty($position = Yii::$app->request->get('position', ''))) // 变成下面这样干脆执行了三遍 if (Yii::$app->request->getIsPost() && !empty($position = Yii::$app->request->get('position', ''))) { // dump(Yii::$app->request->get('position', '')); // exit; TravelDay::addDay($position, $model->id); } else { TravelDay::initDay($model->id); } $days = TravelDay::find() ->where(['travel_log_id' => $model->id]) ->orderBy(['order' => SORT_ASC]) ->all(); $images = TravelImg::find() ->where(['travel_log_id' => $model->id]) ->orderBy(['order' => SORT_ASC]) ->all(); return $this->render('trip-days', [ 'images' => $images, 'days' => $days, 'logId' => $model->id, ]); }</code>
回复内容:
现在情况是,我点了一下a
链接,是 post
请求,参数是 get
传递的, actionTripDays
方法执行了三遍,表里被插入了三条数据,应该只执行一次,插入一条数据的,这是为毛呢??求帮助
但我在,if
里,dump($position)
却只有一次输出。
<code><a href="<?=%20Url::toRoute(%5B'trip-days',%20'id'%20=>%20%24logId,%20'position'%20=>%20'end'%5D)%20?>" class="add-one-day" data-method="post" rel="nofollow">+ 新增后一天</a> public function actionTripDays($id) { $model = $this->findModel($id); // 最开始是这样写的,执行了两遍 if (!empty($position = Yii::$app->request->get('position', ''))) // 变成下面这样干脆执行了三遍 if (Yii::$app->request->getIsPost() && !empty($position = Yii::$app->request->get('position', ''))) { // dump(Yii::$app->request->get('position', '')); // exit; TravelDay::addDay($position, $model->id); } else { TravelDay::initDay($model->id); } $days = TravelDay::find() ->where(['travel_log_id' => $model->id]) ->orderBy(['order' => SORT_ASC]) ->all(); $images = TravelImg::find() ->where(['travel_log_id' => $model->id]) ->orderBy(['order' => SORT_ASC]) ->all(); return $this->render('trip-days', [ 'images' => $images, 'days' => $days, 'logId' => $model->id, ]); }</code>
我不是来回答,我是想问 yii 是怎么实现给a元素设定请求方式的

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PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

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PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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