title: PHPMyAdmin 500 Internal Server Error in Apache due to PHP Version || New Problem
body: <p><strong>Version:</strong></p>
  <ul>
  <li>OS lsb_release -a : Ubuntu 18.04.5 LTS</li>
  <li>PHP php -v : 8.0.5 Apache</li>
  <li>pache2 -v : 2.4.29 (Ubuntu)</li>
  <li>mysql --version : mysql Ver 14.14
  Distrib 5.7.32</li>
  </ul>
  <p><strong>Problem:</strong></p>
  <p>I'm trying to install LAMP Stack using following article. However, I was getting HTTP 500 Error while accessing phpmyadmin from browser.</p>
  <p>And installed phpmyadmin using below command.</p>
  <p>sudo apt install phpmyadmin php-mbstring php-zip php-gd php-json php-curl</p>
  <p><strong>Tried:</strong></p>
  <p>So, I checked with Error Log tail -f /var/log/apache2/error.log and found that Phpmyadmin was running on depreciated version of PHP.</p>
  <p>[Sun May 16 21:11:57.057418 2021] [core:notice] [pid 2711] AH00094: Command line: '/usr/sbin/apache2'
  [Sun May 16 21:12:49.262658 2021] [mpm_prefork:notice] [pid 2711] AH00171: Graceful restart requested, doing restart
  [Sun May 16 21:12:49.280421 2021] [alias:warn] [pid 2711] AH00671: The Alias directive in /etc/phpmyadmin/apache.conf at line 3 will probably never match because it overlaps an earlier Alias.
  [Sun May 16 21:12:49.307986 2021] [mpm_prefork:notice] [pid 2711] AH00163: Apache/2.4.29 (Ubuntu) configured -- resuming normal operations
  [Sun May 16 21:12:49.308000 2021] [core:notice] [pid 2711] AH00094: Command line: '/usr/sbin/apache2'
  [Sun May 16 21:24:43.439480 2021] [mpm_prefork:notice] [pid 2711] AH00169: caught SIGTERM, shutting down
  PHP Warning:  PHP Startup: Unable to load dynamic library 'json.so' (tried: /usr/lib/php/20200930/json.so (/usr/lib/php/20200930/json.so: cannot open shared object file: No such file or directory), /usr/lib/php/20200930/json.so.so (/usr/lib/php/20200930/json.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
  [Sun May 16 21:24:43.547262 2021] [mpm_prefork:notice] [pid 2888] AH00163: Apache/2.4.29 (Ubuntu) configured -- resuming normal operations
  [Sun May 16 21:24:43.547290 2021] [core:notice] [pid 2888] AH00094: Command line: '/usr/sbin/apache2'
  [Sun May 16 21:24:47.635162 2021] [php:error] [pid 2895] [client 84.251.85.6:56332] PHP Fatal error:  Array and string offset access syntax with curly braces is no longer supported in /usr/share/phpmyadmin/libraries/url_generating.lib.php on line 231</p>