Convert a datepicker string to database date format.

form.phtml

<script> $(function() { $('#date').datepicker({dateFormat: 'dd-mm-yy'}); }); </script>
<?php echo $this->formRow($form->get('date')); ?>

MyFormFieldset.php

<?php
class MyFormFieldset extends Fieldset implements InputFilterProviderInterface
{
    public function __construct() //I am using DoctrineModule 2.. I remove it configuration.
    {
	/* ... */

        $this->add(array(
            'name' => 'date',
            'type' => 'Zend\Form\Element\Text',
            'attributes' => array(
                'id'            => 'date',
                'placeholder'   => '31-01-2016',
            ),
        ));
    }
    public function getInputFilterSpecification()
    {
	'date' => array(
		'required' => true,
                'validators' => array(
                    array(
                        'name' => 'Zend\Validator\Date',
                        'options' => array(
                            'min' => date('d-m-Y'),
                        ),
                    ),
                ),
                'filters' => array(
                    array(
                        'name' => 'Zend\Filter\DateTimeFormatter',
                            'options' => array(
                            'format' => 'Y-m-d'
                        ),
                    ),
                ),
	),