php - 'Invalid' error for sfWidgetFormChoice when form is submitted -

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I want to display a combo box using symfony I have created the widget in CountryForm.php:

$ The-> setWidgets (array ('country' => new sfWidgetFormChoice (array ('option' => array ()));

For this verifier:

$ This-> setValidators (Array ('country' => new sfValidatorChoice (array ('option' => array (array_keys ($ country))))));

Let me invalid for this Cambodia Is getting an error. Is there any idea on this? Thanks in advance ..

array_keys gives an array try: 

  $ this-> setValidators (array ('country' = & gt; ; New sfValidatorChoice (array ('option' = & gt; array_kiz ($ country)));

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