Can't download package to use PHP SDK for couchbase server

I am going through the official documentation of couchbase:

What I need is: I want to use php to insert, update, delete on couchbase data.

To configure my local machine I am following the following steps:

  1. go to:
  2. trying to download:

But in this url I am getting the following error message:

<Message>The specified key does not exist.</Message>

I googled for 2 days. I am apologizing if I am asking such a question which should not be asked here. I am absolute beginner in couchbase. I am confidant with php and mysql. Any suggestion will be appreciated.

N.B: I am using PHP Version 7.2.0

@sattar.kuet, I’ve fixed the links already. Thanks for noticing it. We don’t provide official binaries for PHP 7.2 on windows. Although we do support 7.2 and you can build binary from sources, or use one from