original_string: public function getSubmitValue($elementName)
      {
          $value = $this->getValue();
          return isset($value[$elementName]) ? $value[$elementName] : null;
      }
code: public function getSubmitValue($elementName)
      {
          $value = $this->getValue();
          return isset($value[$elementName]) ? $value[$elementName] : null;
      }
code_tokens: public function getSubmitValue ( $ elementName ) { $ value = $ this -> getValue ( ) ; return isset ( $ value [ $ elementName ] ) ? $ value [ $ elementName ] : null ; }
docstring: Ported from HTML_QuickForm to minimize changes to Controllers
  
  @param string $elementName
  @return mixed
docstring_tokens: Ported from HTML_QuickForm to minimize changes to Controllers