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This article introduces the knowledge of "how to write the yii frame form". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

How to write the yii frame form?

(1) first create a form instance

/ / $form is the form instance.

ActiveForm::begin () not only marks the beginning of the form, but also creates an instance of the form.

(2) then create an ActiveField instance

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Everything placed between ActiveForm::begin () and ActiveForm::end () is wrapped in a HTML tag.

Create an ActiveField instance by calling the ActiveForm::field () method, which creates the form element and the tag of the element, as well as the corresponding JavaScript certificate.

Each ActiveField has a corresponding model and attribute, and the name property of the input input box is automatically created based on the property name; at the same time, the user's data input is validated with the attribute's validation rules.

(3) use examples

$form- > field ($model,'body') creates an ActiveField object

ActiveField's method textarea () creates a three-line input box

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