function LoadExtension($scope, $extension, $included_constant, $include)
 {
     if (strlen($included_constant) == 0 || !defined($included_constant)) {
         $error = MetabaseLoadClass($include, $this->include_path, $extension);
         if (strlen($error)) {
             return $this->SetError($scope, $error);
         }
     }
     return 1;
 }
 function LoadExtension($scope, $extension, $included_constant, $include)
 {
     if (strlen($included_constant) == 0 || !defined($included_constant)) {
         $error = MetabaseLoadClass($include, $this->include_path, $extension);
         if (strlen($error)) {
             return $this->SetError($scope, $error);
         }
         if (strlen($included_constant) && !defined($included_constant)) {
             return $this->SetError($scope, "it was not possible to load " . $extension . " extension file " . $include . " using path \"" . $this->include_path . "\"");
         }
     }
     return 1;
 }