public function getInstance($name) {
        return isset($this->instances[$name]) ? $this->instances[$name] : null;
    }
public function getInstance($name) {
        return isset($this->instances[$name]) ? $this->instances[$name] : null;
    }
public function getInstance ( $ name ) { return isset ( $ this -> instances [ $ name ] ) ? $ this -> instances [ $ name ] : null ; }
Gets a single instance of a class.

@param string $name Instance name
@return object Class instance
Gets a single instance of a class .