src/SharedData.php
public function hasData($key) {
        $key = $this->processKey($key);
        return isset($this->shared[$key]);
    }
public function hasData($key) {
        $key = $this->processKey($key);
        return isset($this->shared[$key]);
    }
public function hasData ( $ key ) { $ key = $ this -> processKey ( $ key ) ; return isset ( $ this -> shared [ $ key ] ) ; }
Check that data is set
@param string $key
@return bool
Check that data is set