Get a single keyword

@param int $key
@return string|null
328358
public function get_keyword($key = 0)
	{
		$keywords = $this->get_keywords();
		if (isset($keywords[$key]))
		{
			return $keywords[$key];
		}

		return null;
	}
1230590
public function get($key)
	{
		$value = $this->engine->get($this->id($key));

		if ($this->engine->getResultCode() == 0)
		{
			return $value;
		}

		return null;
	}
593535
protected function get($key)
    {
        $this->checkForNonEmptyKey($key);
        if (!isset($this->getBackEndUser()->uc[self::PHPUNIT_SETTINGS_KEY][$key])) {
            return null;
        }

        return $this->getBackEndUser()->uc[self::PHPUNIT_SETTINGS_KEY][$key];
    }
356366
public function get ($key) {
    if (isset($this->map[$key])) {
      return $this->map[$key];
    }
    return null;
  }
47000
public function getHeader($key)
    {
        foreach ($this->headers as $header => $content) {
            if (strtolower($key) === strtolower($header)) {
                return $content;
            }
        }
        return null;
    }
158746
public function get($key)
	{
		$result = null;

		if (isset($this->vars[$key]))
		{
			$result = $this->vars[$key];
		}

		return $result;
	}
92867
public function get($key = null)
    {
        if (Arr::key($key, $this->_data)) {
            return $this->_data[$key];
        }

        return $this->_data;
    }
1372631
public function getResponseByKey($key)
  {
    return isset($this->responses[$key]) ? $this->responses[$key] : null;
  }
1073655
public function get(string $key)
    {
        if ($this->enabled === false) {
            return null;
        }

        $index = $this->cacheIndex[$key] ?? $key;
        if (!isset($this->cache[$index]) || $this->cacheExpiryTime[$index] < microtime(true)) {
            return null;
        }

        ++$this->cacheAccessCount[$index];

        return $this->cache[$index];
    }
1184537
public function def($key = null)
    {
        if ($key) return isset($this->definition[$key]) ? $this->definition[$key] : null;
        else return $this->definition;
    }
236017
public function getParameter($key)
    {
        return isset($this->params[$key]) ? $this->params[$key] : null;
    }
221173
public function get($key)
    {
        if (!$this->isEnabled()) {
            return null;
        }

        if (xcache_isset($this->prefix() . $key)) {
            return unserialize(xcache_get($this->prefix() . $key));
        } else {
            return null;
        }
    }
1127057
public function get($key)
    {
        $file=$this->getCacheDir().$key;
        if(file_exists($file)){
            $content=file_get_contents($file);
            $content=unserialize($content);
            return $content;
        }
        return null;
    }
377157
public function get($key)
    {
        //        return $this->claims['data'][$key] ?? null;

        if (isset($this->claims['data'][$key])) {
            return $this->claims['data'][$key];
        } else {
            return null;
        }
    }
436925
public static function get($key) {
        if (isset(self::$keyvals) && isset(self::$keyvals[$key])) {
            return self::$keyvals[$key];
        }
        return '';
    }
182580
public function get(string $key) {
		return ($content = $this->driver->get($key)) ? static::unserialize($content) : null;
	}
356350
public function getValue($key)
    {
        return isset($this->langstrings[$key]) ? $this->langstrings[$key] : null;
    }