Reopen the php-fpm log after rotation by logrotate

For this - the following option in logrotate configuration might be useful:

postrotate
  /usr/lib/php/php7.3-fpm-reopenlogs
endscript

Change the binary to your desired version in the configuration.

You can search for this binary in your system by using this command:

find / -name "*-fpm-reopenlogs"