pharext\Archive::open PHP Method

    function open($file)
    {
        if (!($this->fd = @fopen($file, "r"))) {
            throw new Exception();
        }
        $this->file = $file;
        $this->stub = $this->readStub();
        $this->manifest = $this->readManifest();
        $this->signature = $this->readSignature();
    }