Yii2.0 ActiveForm Input Fields

Use the namespace For ActiveForm

Active Form Begin And End

Text Input Field

TextArea Field

Password Input Field

HTML5 Email Input Field

File Upload

Checkbox Button Field

Checkbox List Input Field

Radio Button Field

Radio Button List Field

ListBox Field

dropDown List Input Field

Submit Button

‘yii\widgets\ActiveForm’ class is used to create a form and ‘yii\helpers\Html’ class is used to display the different type of HTML input fields like buttons, textbox, select box etc.

ActiveForm::begin() - creates a form instance and  beginning of the form.
ActiveForm::begin() and ActiveForm::end() - All of the content placed between this.

Use the namespace For ActiveForm

<?php
use yii\helpers\Html;
use yii\widgets\ActiveForm;
?>

‘ActiveForm’ namespace is very important to create the a active form and ‘Html’ namespace is very useful to display the different html input fields.

Active Form Begin And End

<?php
use yii\helpers\Html;
use yii\widgets\ActiveForm;

//$form = ActiveForm::begin(); //Default Active Form begin
$form = ActiveForm::begin([
'id' => 'active-form',
'options' => [
'class' => 'form-horizontal',
'enctype' => 'multipart/form-data'
],
])
/* ADD FORM FIELDS */
ActiveForm::end();
?>

Here we added active form with basic details like form id, class and enctype for file uploads.

Text Input Field

//Format 1
<?= $form->field($model,'name'); ?>
//Format 2
<?= $form->field($model, 'name')->textInput()->hint('Please enter your name')->label('Name') ?>

Format 1 is a normal text input field. Format 2 is a text input field with hint, label.

TextArea Field

The model attribute value will be used as the content in the textarea.

<?= $form->field($model, 'desc')->textarea(); ?>
<?= $form->field($model, 'desc')->textarea()->label('Description'); ?>
<?= $form->field($model, 'desc')->textarea(array('rows'=>2,'cols'=>5)); ?>

Password Input Field

//Format 1
<?= $form->field($model, 'password')->input('password') ?>
//Format 2
<?= $form->field($model, 'password')->passwordInput() ?>
//Format 3
<?= $form->field($model, 'password')->passwordInput()->hint('Password should be within A-Za-z0-9')->label('Password Hint') ?>

We added different type of password input field like password with hint, custom lable.

HTML5 Email Input Field

<?= $form->field($model, 'email')->input('email') ?>

File Upload

fileInput() function is used to create a file input fields and ‘multiple’ parameter is used to upload multiple file in single upload.

Single File Upload

<?= $form->field($model, 'uploadFile')->fileInput() ?>

MultiFile Upload

<?php echo $form->field($model, 'uploadFile[]')->fileInput(['multiple'=>'multiple']); ?>

Checkbox Button Field

Using below we can create the Checkbox base on model attribute of yii2.0 framework. We added the following options like custom label, disabled, style etc

<!-- CHECKBOX BUTTON DEFAULT LABEL -->
<?= $form->field($model, 'population')->checkbox(); ?>
<!-- CHECKBOX BUTTON WITHOUT LABEL -->
<?= $form->field($model, 'population')->checkbox(array('label'=>'')); ?>
<!-- CHECKBOX BUTTON WITH CUSTOM LABEL -->
<?= $form->field($model, 'population')	->checkbox(array('label'=>''))
->label('Gender'); ?>
<!-- CHECKBOX BUTTON WITH LABEL OPTIONS, DISABLED AND STYLE PROPERTIES -->
<?= $form->field($model, 'population')->checkbox(array(
'label'=>'',
'labelOptions'=>array('style'=>'padding:5px;'),
'disabled'=>true
))
->label('Gender'); ?>

Checkbox List Input Field

checkboxList() function is used to display the check box list using array of input argument values.

<?php echo $form->field($model, 'name[]')->checkboxList(['a' => 'Item A', 'b' => 'Item B', 'c' => 'Item C']); ?>

Radio Button Field

The model attribute value will be used to create the redio button.

<!-- RADIO BUTTON DEFAULT LABEL -->
<?= $form->field($model, 'gender')->radio(); ?>
<!-- RADIO BUTTON WITHOUT LABEL -->
<?= $form->field($model, 'gender')->radio(array('label'=>'')); ?>
<!-- RADIO BUTTON WITH CUSTOM LABEL -->
<?= $form->field($model, 'gender')	->radio(array('label'=>''))
->label('Gender'); ?>
<!-- RADIO BUTTON WITH LABEL OPTIONS -->
<?= $form->field($model, 'gender')->radio(array(
'label'=>'',
'labelOptions'=>array('style'=>'padding:5px;')))
->label('Gender'); ?>

Radio Button List Field

The model attribute value will be used to create the redio button list.

<?= $form->field($model, 'population')->radioList(array('1'=>'One',2=>'Two')); ?>

ListBox Field

Using below we can create the list box base on model attribute of yii2.0 framework. We added the following options like prompt, size, disabled, style etc

<!-- Listbox with prompt text -->
<?= $form->field($model, 'population')-> listBox(
array('1'=>'1',2=>'2',3=>3,4=>4,5=>5),
array('prompt'=>'Select')
); ?>
<!-- Listbox with size -->
<?= $form->field($model, 'population')-> listBox(
array('1'=>'1',2=>'2',3=>3,4=>4,5=>5),
array('prompt'=>'Select','size'=>3)
); ?>
<!-- Listbox with disabled, style properties -->
<?= $form->field($model, 'population')-> listBox(
array('1'=>'1',2=>'2',3=>3,4=>4,5=>5),
array('disabled' => true,'style'=>'background:gray;color:#fff;'))
->label('Gender'); ?>

dropDown List Input Field

dropDownList() function is used to create HTML ‘select’ tag input field.

//Format 1
<?php echo $form->field($model, 'name')->dropDownList(['a' => 'Item A', 'b' => 'Item B', 'c' => 'Item C']); ?>
// Format 2
< echo $form->field($model, 'name')->dropDownList($listData, ['prompt'=>'Choose...']);>

Submit Button

<?= Html::submitButton('Submit', ['class'=> 'btn btn-primary']) ;?>