public function __isset($name)
    {
      $value = $this->find($name);
      if ($value !== null && !($value instanceof \Exception)) {
          return true;
      }
      return false;
    }
public function __isset($name)
    {
      $value = $this->find($name);
      if ($value !== null && !($value instanceof \Exception)) {
          return true;
      }
      return false;
    }
public function __isset ( $ name ) { $ value = $ this -> find ( $ name ) ; if ( $ value !== null && ! ( $ value instanceof \ Exception ) ) { return true ; } return false ; }
Determines if a resource exists.

@param name The name of the resource sought.
@return Boolean
Determines if a resource exists .