    public function __construct($uri = '')
    {
        if ($uri != '') {
            $parts = parse_url($uri);
            if ($parts === false) {
                throw new \InvalidArgumentException("Unable to parse URI: $uri");
            }
            $this->applyParts($parts);
        }
    }
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.