title: Add PHP file to all website in specify plan in Plesk
body: <p>I want to add custom content to each website for all user in Free plan by Nginx. Iam trying this code bellow:</p>
  <pre><code>location / {
          try_files $uri $uri/ /index.php?$query_string;
          add_before_body /root/copyright.php;
          proxy_redirect off;
          proxy_buffering off;
          proxy_pass http://51.79.241.***;
      }
  </code></pre>
  <p>And I got this bug:</p>
  <p><a href="https://i.stack.imgur.com/UloSz.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/UloSz.png" alt="enter image description here" /></a></p>
  <p>As You can see, Iam trying add content to before body but I got error messenger after body</p>