library/core/class.form.php
public function EscapeFieldName($FieldName) {
      $Return = $this->InputPrefix;
      if ($Return != '') $Return .= '/';
      return $Return . $this->EscapeString($FieldName);
   }
public function EscapeFieldName($FieldName) {
      $Return = $this->InputPrefix;
      if ($Return != '') $Return .= '/';
      return $Return . $this->EscapeString($FieldName);
   }
public function EscapeFieldName ( $ FieldName ) { $ Return = $ this -> InputPrefix ; if ( $ Return != '' ) $ Return .= '/' ; return $ Return . $ this -> EscapeString ( $ FieldName ) ; }
Returns the provided fieldname with non-alpha-numeric values stripped.

@param string $FieldName The field name to escape.
@return string
Returns the provided fieldname with non - alpha - numeric values stripped .