How to do array validation in Active Form Yii2?

Question

Yii

Is it possible to somehow validate an array of models, or how to say it correctly, in general, a contact form, fields are added dynamically.

<div>
<select name="type[0]">
  <option value="ok">Одноклассники</option>
  ...
  <option value="vk">ВК</option>
</select>
<input type="text" name="value[0]" />
</div>
...
<div>
<select name="type[0]">
  <option value="ok">Одноклассники</option>
  ...
  <option value="vk">ВК</option>
</select>
<input type="text" name="value[0]" />
</div>

Something like this. There is only each, which is clearly not relevant here, since it is used when the model has one of the fields - an array, and here, in fact, an array of models

Answer 1

This is the so-called tabular input .
And your form is incorrect, you will get only one value type[0] and value[0].

<div>
<select name="social[0][type]">
  <option value="ok">Одноклассники</option>
  ...
  <option value="vk">ВК</option>
</select>
<input type="text" name="social[0][value]" />
</div>
...
<div>
<select name="social[1][type]">
  <option value="ok">Одноклассники</option>
  ...
  <option value="vk">ВК</option>
</select>
<input type="text" name="social[1][value]" />
</div>