gistfile1.txt

        $accept = $headers->get('Accept');
        $match = $accept->match('application/json, application/javascript, application/rss+xml, application/atom+xml');
        var_dump($match);


object(Zend\Http\Header\Accept\FieldValuePart\AcceptFieldValuePart)[301]
  private 'internalValues' (Zend\Http\Header\Accept\FieldValuePart\AbstractFieldValuePart) => 
    object(stdClass)[302]
      public 'typeString' => string '*/*' (length=3)
      public 'type' => string '*' (length=1)
      public 'subtype' => string '*' (length=1)
      public 'subtypeRaw' => string '*' (length=1)
      public 'format' => string '*' (length=1)
      public 'priority' => string '0.8' (length=3)
      public 'params' => 
        array (size=1)
          'q' => string '0.8' (length=3)
      public 'raw' => string '*/*;q=0.8' (length=9)
  public 'matchedAgainst' => 
    object(Zend\Http\Header\Accept\FieldValuePart\AcceptFieldValuePart)[303]
      private 'internalValues' (Zend\Http\Header\Accept\FieldValuePart\AbstractFieldValuePart) => 
        object(stdClass)[304]
          public 'typeString' => string 'application/json' (length=16)
          public 'type' => string 'application' (length=11)
          public 'subtype' => string 'json' (length=4)
          public 'subtypeRaw' => string 'json' (length=4)
          public 'format' => string 'json' (length=4)
          public 'priority' => int 1
          public 'params' => 
            array (size=0)
              ...
          public 'raw' => string 'application/json' (length=16)