How to obtain user get and post parameters in yii2
Get：
Yii::$app->request->get($key, $default)
The first parameter ($key) is the key requested by the user get, and the first parameter is optional; The two parameters ($default) are the default values, and the second parameter is optional; if you do not fill in the parameters, you will get an array of get data.
Yii::$app->request->queryParams
The result is an array, which is equal to Yii::$app->request->get().
Recommended tutorial: yii framework
Post:
Yii::$app->request->post($key, $default)
The first parameter ($key) is The key of the user's post request, the first parameter is optional, the second parameter ($default) is the default value, and the second parameter is optional; if you do not fill in the parameters, you will get an array of post data.
Yii::$app->request->bodyParams
The result is an array, which is equal to Yii::$app->request->post().
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