@param $key

@return null
352119
public function getDbStatement($key)
    {
        return (isset($this->data[$key])) ? $this->data[$key] : null;
    }
261462
protected function get($key)
    {
        $this->checkForNonEmptyKey($key);
        if (!$this->settingsHaveBeenRetrieved) {
            $this->retrieveSettings();
        }
        if (!isset($this->cachedSettings[$key])) {
            return null;
        }

        return $this->cachedSettings[$key];
    }
422863
public function get($key)
    {
        if (empty($this->data[$key]) === true) {
            return null;
        }

        return $this->data[$key];
    }
1041258
public function get_data($key) {
        if (isset($this->data->$key)) {
            return $this->data->$key;
        }
        return null;
    }
356366
public function get ($key) {
    if (isset($this->map[$key])) {
      return $this->map[$key];
    }
    return null;
  }
562623
public function value($key)
    {
        return (array_key_exists($key, $this->tags)) ? $this->tags[$key] : null;
    }
738250
public function get(string $key)
    {
        return isset($this->_configValues[$key])
            ? $this->_configValues[$key]
            : null;
    }
337863
protected function retrieve($key)
    {
        if (($cache = $this->memcache->get($this->key . $key)) !== false) {
            return $cache;
        }

        return null;
    }
201777
public function get($key)
    {
        $allowed = array_diff(array_keys(get_class_vars(get_class($this))), $this->_hidden);
        if (empty($allowed) || !empty($allowed) && in_array($key, $allowed)) {
            if (method_exists($this, 'get' . ucfirst($key))) {
                return call_user_func_array([$this, 'get' . ucfirst($key)], [$key]);
            }

            return $this->{$key};
        }

        return null;
    }
691244
function getCache( $key ) {

        return isset( $this->_cache[ $key ] ) ? $this->_cache[ $key ] : null;

    }
1084695
public function getParam($key)
    {
        return isset($this->_rawRequest[$key]) ? $this->_rawRequest[$key] : null;
    }
804423
public function getQueryParameter($key)
    {
        $queryStringArray = $this->getQueryStringAsArray();

        if (array_key_exists($key, $queryStringArray)) {
            return $queryStringArray[$key];
        }

        return null;
    }
1127057
public function get($key)
    {
        $file=$this->getCacheDir().$key;
        if(file_exists($file)){
            $content=file_get_contents($file);
            $content=unserialize($content);
            return $content;
        }
        return null;
    }
1065160
public function get( $key )
	{
		if ( isset($this->getData[ $key ]) )
		{
			return $this->getData[ $key ];
		}
		else
		{
			return null;
		}
	}
20749
public function getParameter($key)
    {
        $filteredParameters = $this->parameters->filter(
            static function (Query\Parameter $parameter) use ($key) : bool {
                $parameterName = $parameter->getName();

                return $key === $parameterName || (string) $key === (string) $parameterName;
            }
        );

        return $filteredParameters->isEmpty() ? null : $filteredParameters->first();
    }
145367
public function getParams($key = null)
	{
		if(is_null($key))
		{
			return $this->params;
		}

		return $this->params[$key];
	}
713835
public function getValue($key)
    {
        if (!isset($this->values[$key])) {
            return null;
        }
        return $this->values[$key];
    }