title: Install gRPC for PHP
body: <p>I want to install gRPC for PHP 7.3. I followed <a href="https://cloud.google.com/php/grpc#using-pecl" rel="nofollow noreferrer">Google Cloud</a> documentation.</p>
  <p>I use <code>ubuntu 16.04</code>, <code>Nginx</code></p>
  <p>I install:</p>
  <pre><code>sudo apt-get install autoconf zlib1g-dev php-dev php-pear
  sudo pecl install grpc
  </code></pre>
  <p>But I am getting this error:</p>
  <blockquote>
  <p>No releases available for package &quot;pecl.php.net/grpc&quot;</p>
  <p>install failed</p>
  </blockquote>
  <p>I don't know what is wrong.</p>
  <p>It is <code>php -v</code></p>
  <pre><code>PHP 7.3.22-1+ubuntu16.04.1+deb.sury.org+1 (cli) (built: Sep  9 2020 06:46:12) ( NTS )   
  Copyright (c) 1997-2018 The PHP Group
  Zend Engine v3.3.22, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.3.22-1+ubuntu16.04.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies 
  </code></pre>
  <p>Please, help me.</p>