Php ZF2-接口'\型号\InputFilterWareInterface'；找不到

我的zend framework 2项目涉及在线餐厅菜单，我的代码有问题，因为我有以下错误：

Fatal error: Interface 'Pizza\Model\InputFilterAwarelnterface' not found
C:\wamp\www\pizza\module\Pizza\src\Pizza\Model\pizza.php on line 9

请帮我找出我的代码有什么问题。 下面是pizza.php文件：

<?php 

namespace Pizza\Model;
use Zend\InputFilter\InputFilter; 
use Zend\InputFilter\InputFilterInterface; 
use Zend\InputFilter\InputFilterAwareInterface;

class Pizza implements InputFilterAwarelnterface 
{ 
    public $id; 
    public $name;
    public $ingredients; 
    public $smallprice; 
    public $bigprice; 
    public $familyprice; 
    public $partyprice;
    protected $inputFilter;



 public function __construct()
 {
 } 

 public function exchangeArray($data) 
 { 
    $this->id            = (!empty($data['id']))          ? $data['id']           :null;
    $this->name          = (!empty($data['name']))        ? $data['name']         :null;
    $this->ingredients   = (!empty($data['ingredients'])) ? $data['ingredients']  :null;
    $this->smallprice    = (!empty($data['smallprice']))  ? $data['smallprice']   :null;
    $this->bigprice      = (!empty($data['bigprice']))    ? $data['bigprice']     :null;
    $this->familyprice   = (!empty($data['familyprice'])) ? $data['familyprice']  :null;
    $this->partyprice    = (!empty($data['partyprice']))  ? $data['partyprice']   :null;
} 

public function getArrayCopy() 
{ 
    return get_object_vars($this); 
} 


public function setInputFilter(InputFilterInterface $inputfilter)
{ 
    throw new \Exception("not used"); 
}


public function getInpunFilter() 
{ 
    if(!$this->inputFliter)
    { 
        $inputfilter = new InputFilter(); 
        $inputfilter->add(array('name' => 'name',
                                'required' => true,
                                'filters' => array('name' => 'StringTrim'),
                                             array('name' => 'StringTags'),
                                'validators' => array(
                                                      array(
                                                      'name'    => 'StringLength',
                                                      'options' => array(
                                                                         'encoding' => 'UTF-8',
                                                                         'min'      => 5,
                                                                         'max'      =>30,),
                                                      ))
                                )
                          );

        $inputfilter->add(array('name' => 'ingredients',
                                'required' => true,
                                'filters' => array('name' => 'StringTrim'),
                                             array('name' => 'StringTags'),
                                'validators' => array(
                                                      array(
                                                      'name'    => 'StringLength',
                                                      'options' => array(
                                                                         'encoding' => 'UTF-8',
                                                                         'min'      => 5,
                                                                         'max'      =>255,),
                                                      ))
                                )
                          );

        $inputfilter->add(array('name' => 'smallprice',
                                'required' => true,
                                'filters' => array('name' => 'StringTrim'),
                                             array('name' => 'StringTags'),
                                'validators' => array(
                                                      array(
                                                      'name'    => 'StringLength',
                                                      'options' => array(
                                                                         'encoding' => 'UTF-8',
                                                                         'min'      => 1,
                                                                         'max'      => 5,),
                                                      ),
                                                      array(
                                                            'name'    => 'float',
                                                            'options' => array(
                                                                               'locale' => 'en_us')
                                                            )
                                                      )
                                )
                          );

        $inputfilter->add(array('name' => 'bigprice',
                                'required' => true,
                                'filters' => array('name' => 'StringTrim'),
                                             array('name' => 'StringTags'),
                                'validators' => array(
                                                      array(
                                                      'name'    => 'StringLength',
                                                      'options' => array(
                                                                         'encoding' => 'UTF-8',
                                                                         'min'      => 1,
                                                                         'max'      => 5,),
                                                      ),
                                                      array(
                                                            'name'    => 'float',
                                                            'options' => array(
                                                                               'locale' => 'en_us')
                                                            )
                                                      )
                                )
                          );


        $inputfilter->add(array('name' => 'familyprice',
                                'required' => true,
                                'filters' => array('name' => 'StringTrim'),
                                             array('name' => 'StringTags'),
                                'validators' => array(
                                                      array(
                                                      'name'    => 'StringLength',
                                                      'options' => array(
                                                                         'encoding' => 'UTF-8',
                                                                         'min'      => 1,
                                                                         'max'      => 5,),
                                                      ),
                                                      array(
                                                            'name'    => 'float',
                                                            'options' => array(
                                                                               'locale' => 'en_us')
                                                            )
                                                      )
                                )
                          );


        $inputfilter->add(array('name' => 'partyprice',
                                'required' => true,
                                'filters' => array('name' => 'StringTrim'),
                                             array('name' => 'StringTags'),
                                'validators' => array(
                                                      array(
                                                      'name'    => 'StringLength',
                                                      'options' => array(
                                                                         'encoding' => 'UTF-8',
                                                                         'min'      => 1,
                                                                         'max'      => 5,),
                                                      ),
                                                      array(
                                                            'name'    => 'float',
                                                            'options' => array(
                                                                               'locale' => 'en_us')
                                                            )
                                                      )
                                )
                          );

        return $this->inputFilter;


    }


    return $this->inputFilter; 
} 



}

简单的打字错误：

class Pizza implements InputFilterAwarelnterface 
                                       ^
                                       This character should be an 'I', not a 'l'

也可以这样做：使用Zend\InputFilter\InputFilterInterface作为InputFilterWareInterface:D