public function __isset( string $name )
   {

      if ( $this->hasWritableProperty( $name, $setterName ) )
      {
         return true;
      }

      return parent::__isset( $name );

   }
public function __isset( string $name )
   {

      if ( $this->hasWritableProperty( $name, $setterName ) )
      {
         return true;
      }

      return parent::__isset( $name );

   }
public function __isset ( string $ name ) { if ( $ this -> hasWritableProperty ( $ name , $ setterName ) ) { return true ; } return parent :: __isset ( $ name ) ; }
Magic isset implementation.

@param  string $name The name of the required property.
@return boolean
Magic isset implementation .