Why is the field type=hidden of the same name created for input type=file, for example, in yii2?

Question

JavaScript

<div class="form-group field-fruit-screens">
<input type="hidden" name="Fruit[screens]" value="">
<input type="file" id="fruit-screens" name="Fruit[screens]">
<div class="help-block"></div>
</div>

This is how the form element turns out in yii2.

Answer 1

www.yiiframework.com/forum/index.php/topic/33997-f...

Answer 2

Because if you do not upload the file, then your hidden input will be sent to the server, and if you add the file, then it’s yours, such is the system. What in any case should be sent infa