Yii2 Dropdown list without value attribute inside option element

Question

I'm creating a year dropdown list using the following code:

<?php
$range = range(2016, 2026);
echo $form->field($model, 'year')->dropDownList($range)->label("Year");
?>

It outputs:

<select id="testform-year" class="form-control" name="TestForm[year]">
    <option value="0">2016</option>
    <option value="1">2017</option>
    <option value="2">2018</option>
    <option value="3">2019</option>
    <option value="4">2020</option>
    <option value="5">2021</option>
</select>

But I want the output without value attribute inside option, like:

<select id="testform-year" class="form-control" name="TestForm[year]">
    <option>2016</option>
    <option>2017</option>
    <option>2018</option>
    <option>2019</option>
    <option>2020</option>
    <option>2021</option>
</select>

Answer 1

Try this: This will create the dropdown wuth value as 2016 and not 0.

<?php
$range = range(2016, 2026);
echo $form->field($model, 'year')->dropDownList(array_combine($range, $range))->label("Year");
?>