获取解析后的数据，可用于缓存，以节约解析的性能。

@return array|null
173988
public function getTrieTree()
    {
        if ($this->_wordsTrieTree != [] && $this->_wordsTrieTreeLowCase != []) {
            return array(
                'Normal' => $this->_wordsTrieTree,
                'LowCase' => $this->_wordsTrieTreeLowCase
            );
        } else {
            return null;
        }
    }
775524
public function getUserData()
    {
        // Don't crash if not using yii\web\User
        if (!Yii::$app->has('user') || !isset(Yii::$app->user->id))
        {
            return null;
        }

        return [
            'id' => Yii::$app->user->id,
        ];
    }
190620
public function parse()
    {
        if ($this->body === false) {
            return null;
        }

        $result = [];
        $key = null;
        foreach ($this->body as $value) {
            if (!is_null($key)) {
                $result[$key] = $value;
                $key = null;
            } else {
                $key = $value;
            }
        }

        return $result;
    }
741365
public function getValues()
    {
        $result = [];
        $defaults = $this->defaults();
        foreach ($defaults as $name => $value) {
            if ($this->getData()->has($name)) {
                $result[$name] = $this->getData()->get($name);
            } else {
                $result[$name] = $value;
            }
        }
        return $result;
    }
189086
public function getData()
    {
        if (null === $this->data) {
            $this->data = $this->loadData();
        }

        return $this->data;
    }
874282
public function get_search_set()
    {
        if (empty($this->search_set)) {
            return null;
        }

        return array(
            $this->search_string,
            $this->search_set,
            $this->search_charset,
            $this->search_sort_field,
            $this->search_sorted,
        );
    }
591772
public function getVariables() 
	{
		$order = null;
		if(!isset($this->query['sort']) || $this->query['sort'] != $this->key) {
			$this->query['sort'] = $this->key;
			$this->query['order'] = self::ASC;
		} else if($this->query['order'] == self::ASC) {
			$order = self::ASC;
			$this->query['order'] = self::DESC;
		} else {
			$order = self::DESC;
			$this->query['order'] = self::ASC;
		}
		
		return array(
			'url'	=> $this->url,
			'query' => $this->query,
			'label' => $this->label,
			'order'	=> strtolower($order),
			'class'	=> $this->className);
	}
511229
public function getValue()
    {
        if (!(is_array($this->data) && count($this->data))) {
            return null;
        }

        return implode('', $this->data);
    }
65669
public function getEnvironments()
    {
        if (isset($this->values['environments'])) {
            $environments = [];
            foreach ($this->values['environments'] as $key => $value) {
                if (is_array($value)) {
                    $environments[$key] = $value;
                }
            }

            return $environments;
        }

        return null;
    }
1112608
public function getValues()
    {
        $values = array();
        /** @var Input $input */
        foreach ($this->_inputs as $name => $input) {
            if (strlen($name) > 0) {
                $values[$name] = call_user_func_array(
                    [$input, 'getValue'],
                    [$name]
                );
            }
        }
        return $values;
    }
1299887
private static function _loadNullValues()
    {
        $values = array();
        $cls    = get_called_class();

        if (!array_key_exists($cls, self::$_columns)) {
            return null;
        }

        foreach (self::$_columns[$cls] as $column) {
            $name = self::isIgnoringCase() ? strtolower($column) : $column;
            $values[$column] = null;
        }
        return $values;
    }
1073722
public function getName(){
		$result = null;
		if (isset($this->userInfo['first_name']) && isset($this->userInfo['last_name'])) {
			$result = $this->userInfo['first_name'] . ' ' . $this->userInfo['last_name'];
			}
		elseif (isset($this->userInfo['first_name']) && !isset($this->userInfo['last_name'])) {
			$result = $this->userInfo['first_name'];
			}
		elseif (!isset($this->userInfo['first_name']) && isset($this->userInfo['last_name'])) {
			$result = $this->userInfo['last_name'];
			}
		return $result;
		}
781598
public function getDataValue() {
		$count = count($this->_dataValues);
		if ($count == 0) {
			return null;
		} elseif ($count == 1) {
			return $this->_dataValues[0];
		}
		return $this->_dataValues;
	}
591090
public function get_value() {
		$value  = parent::get_value();

		if ( is_array( $value ) ) {
			$value = json_encode( $value );
		}

		return $value;
	}
278555
public function getData()
    {
        if (!$this->enabled()) {
            return null;
        }

        $this->addDeprecations();
        $this->timers = [];

        return $this->debugbar->getData();
    }
466821
public function jsonSerialize()
    {
        return array_filter(
            [
                'key' => $this->getKey(),
                'value' => $this->getValue()
            ],
            function ($value) {
                return $value !== null;
            }
        ) ?: null;
    }
150752
public function key() {
		$keys = array_keys($this->data);
		return isset($keys[$this->position]) ? $keys[$this->position] : null;
	}