system/HTTP/URI.php
public function setURI(string $uri = null)
	{
		if (! is_null($uri))
		{
			$parts = parse_url($uri);

			if ($parts === false)
			{
				throw HTTPException::forUnableToParseURI($uri);
			}

			$this->applyParts($parts);
		}

		return $this;
	}
public function setURI(string $uri = null)
	{
		if (! is_null($uri))
		{
			$parts = parse_url($uri);

			if ($parts === false)
			{
				throw HTTPException::forUnableToParseURI($uri);
			}

			$this->applyParts($parts);
		}

		return $this;
	}
Sets and overwrites any current URI information.

@param string|null $uri

@return URI