@param string $name

@return string|bool|null
342457
public function getOption($name)
    {
        if (!isset($this->options[$name])) {
            if (in_array($name, $this->names, true)) {
                return true;
            }

            return null;
        }

        return end($this->options[$name]);
    }
1141060
public function get($name) {

		if ( array_key_exists( $name, $this->_properties )) {
			return $this->_properties[$name];

		} else if ( isset($this->$name) ) {
			return $this->$name;
		}

		return null;
	}
556050
public function getArgument($name)
    {
        if (isset($this->arguments[$name])) {
            return $this->arguments[$name];
        }
        return null;
    }
520021
public function getField( $name )
	{
		if( !$this->hasField( $name ) )
			return NULL;
		$values	= $this->getFieldsByName( $name );
		return array_shift( $values );
	}
557573
public function get($name) {
        return isset($this->metadata[$name]) ? $this->metadata[$name] : null;
    }
279109
public function getParameter($name)
    {
        if (isset($this->_parameters[$name])) {
            return $this->_parameters[$name];
        }
        return null;
    }
934560
public function get($name)
    {
        if (isset($this->_loaded[$name])) {
            return $this->_loaded[$name];
        }

        return null;
    }
367742
public static function get(string $name): ?string
    {
        $data = Session::get($name, null, self::$namespace);
        if (is_array($data) && array_key_exists('token', $data)) {
            return $data['token'];
        }
        return null;
    }
1085756
public function getQueryParameter($name)
    {
        return (isset($this->query_array[$name])) ? $this->query_array[$name] : null;
    }
682946
public function getHeader($name){
        $headers= $this->getHeaders();
        if(isset($headers[$name])){
            return $headers[$name];
        }else{
            return NULL;
        }
    }
190938
public static function get($name = null)
    {
        if ($name === null) {
            $name = array_shift(array_keys(self::$containers));
        }
        return self::$containers[$name] ? self::$containers[$name] : null;
    }
167596
public function get($name)
    {
        if (!isset($this->values[$name])) {
            return null;
        }
        return $this->values[$name];
    }
1037556
public function getHeader($name)
    {
        $headers = $this->message->getHeaders();
        return isset($headers[$name]) ? $headers[$name] : null;
    }
1276103
public function getRequestHeader($name)
    {
        return (isset($this->requestHeaders[$name])) ? $this->requestHeaders[$name] : null;
    }
554799
protected function getValue(string $name) : ?string
    {
        $checkName = $this->envPrefix . strtoupper($name);
        return $this->environmentVariables[$checkName] ?? null;
    }
908830
public function getField($name)
    {
        return (null !== $name && array_key_exists($name, $this->fields)) ? $this->fields[$name] : null;
    }
1330652
public function getQuery(string $name)
    {
        if (isset($this->uri['query'][$name])) {
            return $this->uri['query'][$name];
        }

        return null;
    }