/**
  * Overload: set property
  *
  * @param string $name
  * @param mixed $value
  * @return void
  */
 public function __set($name, $value)
 {
     if (!in_array($name, $this->_allowed)) {
         throw new FFR_Model_Exception(sprintf('Invalid parameter "%s" specified', $name));
     }
     $inputFilter = $this->getForm('CreateFormField');
     $element = $inputFilter->getElement($name);
     if ($element) {
         if ($name == 'form_field_id') {
             $element->removeValidator('DB_NoRecordExists');
         }
         if (!$element->isValid($value)) {
             throw new FFR_Model_Exception(sprintf('Invalid value specified for %s: %s', $name, $value));
         }
         $value = $element->getValue();
     }
     if ($name == 'form_field_attribs' || $name == 'form_field_options') {
         if (is_string($value)) {
             $this->_data[$name] = unserialize($value);
         } else {
             $this->_data[$name] = $value;
         }
     } else {
         $this->_data[$name] = $value;
     }
     if ($name == 'form_field_attribs') {
         // Store the field name
         $filter = new Zend_Filter_Word_SeparatorToSeparator(' ', '_');
         $name = $filter->filter(strtolower(preg_replace('/[^A-Za-z0-9 ]/', '', $this->_data[$name]['Label'])));
         $this->_data['form_field_name'] = $name;
     }
 }

 public function testFilterSeparatesWordsWithSearchAndReplacementSpecified()
 {
     $string = 'dash=separated=words';
     $filter = new Zend_Filter_Word_SeparatorToSeparator('=', '?');
     $filtered = $filter->filter($string);
     $this->assertNotEquals($string, $filtered);
     $this->assertEquals('dash?separated?words', $filtered);
 }

 /**
  * Returns the resource ID for the model in the form model:name
  *
  * @return string
  */
 public function getResourceId()
 {
     $filter = new Zend_Filter_Word_SeparatorToSeparator('_', '.');
     $className = strtolower($this->getClassType($this));
     $resourceId = 'model:' . $filter->filter(str_replace('model_', '', $className));
     return $resourceId;
 }

 /**
  * Constructor
  *
  * @param  string $separator Space by default
  * @return void
  */
 public function __construct()
 {
     parent::__construct('-', '_');
 }

 /**
  * Constructor
  *
  * @param  string $separator Space by default
  * @return void
  */
 public function __construct($replacementSeparator = ' ')
 {
     parent::__construct('_', $replacementSeparator);
 }

 /**
  * Constructor
  *
  * @param  string  $searchSeparator  Seperator to search for change
  * @return void
  */
 public function __construct($searchSeparator = ' ')
 {
     parent::__construct($searchSeparator, '-');
 }

 function __construct()
 {
     parent::__construct(':', '/');
 }