title: Symfony 4 with PHP 7.3 I get Composer update error
body: <p>I changed my Ubuntu Plesk PHP Version to 7.3.11 to update my Symfony project with composer.
  I get the following Error:</p>
  
  <pre><code>    - /etc/php/7.3/cli/php.ini
      - /etc/php/7.3/cli/conf.d/10-opcache.ini
      - /etc/php/7.3/cli/conf.d/10-pdo.ini
      - /etc/php/7.3/cli/conf.d/15-xml.ini
      - /etc/php/7.3/cli/conf.d/20-calendar.ini
      - /etc/php/7.3/cli/conf.d/20-ctype.ini
      - /etc/php/7.3/cli/conf.d/20-curl.ini
      - /etc/php/7.3/cli/conf.d/20-dom.ini
      - /etc/php/7.3/cli/conf.d/20-exif.ini
      - /etc/php/7.3/cli/conf.d/20-fileinfo.ini
      - /etc/php/7.3/cli/conf.d/20-ftp.ini
      - /etc/php/7.3/cli/conf.d/20-gd.ini
      - /etc/php/7.3/cli/conf.d/20-gettext.ini
      - /etc/php/7.3/cli/conf.d/20-iconv.ini
      - /etc/php/7.3/cli/conf.d/20-intl.ini
      - /etc/php/7.3/cli/conf.d/20-json.ini
      - /etc/php/7.3/cli/conf.d/20-mbstring.ini
      - /etc/php/7.3/cli/conf.d/20-phar.ini
      - /etc/php/7.3/cli/conf.d/20-posix.ini
      - /etc/php/7.3/cli/conf.d/20-readline.ini
      - /etc/php/7.3/cli/conf.d/20-shmop.ini
      - /etc/php/7.3/cli/conf.d/20-simplexml.ini
      - /etc/php/7.3/cli/conf.d/20-sockets.ini
      - /etc/php/7.3/cli/conf.d/20-sysvmsg.ini
      - /etc/php/7.3/cli/conf.d/20-sysvsem.ini
      - /etc/php/7.3/cli/conf.d/20-sysvshm.ini
      - /etc/php/7.3/cli/conf.d/20-tokenizer.ini
      - /etc/php/7.3/cli/conf.d/20-wddx.ini
      - /etc/php/7.3/cli/conf.d/20-xmlreader.ini
      - /etc/php/7.3/cli/conf.d/20-xmlwriter.ini
      - /etc/php/7.3/cli/conf.d/20-xsl.ini
    You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.
  </code></pre>
  
  <p>I tried to install:
  sudo apt-get install php7.3-gd
  sudo apt-get install php7.3-intl
  sudo apt-get install php7.3-mbstring</p>
  
  <p>Restart with:
  sudo service apache2 restart</p>
  
  <p>No change. In my Plesk admin, all the extensions are enabled.</p>
  
  <p>But looks like not from Plesk coming. Comes from the php from server. If I run php --ini I get:</p>
  
  <pre><code>Loaded Configuration File:         /etc/php/7.3/cli/php.ini
  Scan for additional .ini files in: /etc/php/7.3/cli/conf.d
  Additional .ini files parsed:      /etc/php/7.3/cli/conf.d/10-opcache.ini,
  /etc/php/7.3/cli/conf.d/10-pdo.ini,
  /etc/php/7.3/cli/conf.d/15-xml.ini,
  /etc/php/7.3/cli/conf.d/20-calendar.ini,
  /etc/php/7.3/cli/conf.d/20-ctype.ini,
  /etc/php/7.3/cli/conf.d/20-curl.ini,
  /etc/php/7.3/cli/conf.d/20-dom.ini,
  /etc/php/7.3/cli/conf.d/20-exif.ini,
  /etc/php/7.3/cli/conf.d/20-fileinfo.ini,
  /etc/php/7.3/cli/conf.d/20-ftp.ini,
  /etc/php/7.3/cli/conf.d/20-gd.ini,
  /etc/php/7.3/cli/conf.d/20-gettext.ini,
  /etc/php/7.3/cli/conf.d/20-iconv.ini,
  /etc/php/7.3/cli/conf.d/20-intl.ini,
  /etc/php/7.3/cli/conf.d/20-json.ini,
  /etc/php/7.3/cli/conf.d/20-mbstring.ini,
  /etc/php/7.3/cli/conf.d/20-phar.ini,
  /etc/php/7.3/cli/conf.d/20-posix.ini,
  /etc/php/7.3/cli/conf.d/20-readline.ini,
  /etc/php/7.3/cli/conf.d/20-shmop.ini,
  /etc/php/7.3/cli/conf.d/20-simplexml.ini,
  /etc/php/7.3/cli/conf.d/20-sockets.ini,
  /etc/php/7.3/cli/conf.d/20-sysvmsg.ini,
  /etc/php/7.3/cli/conf.d/20-sysvsem.ini,
  /etc/php/7.3/cli/conf.d/20-sysvshm.ini,
  /etc/php/7.3/cli/conf.d/20-tokenizer.ini,
  /etc/php/7.3/cli/conf.d/20-wddx.ini,
  /etc/php/7.3/cli/conf.d/20-xmlreader.ini,
  /etc/php/7.3/cli/conf.d/20-xmlwriter.ini,
  /etc/php/7.3/cli/conf.d/20-xsl.ini
  </code></pre>
  
  <p>Any idea?</p>