PHP version - Is it possible to upgrade OJS version 3.1.0 to 3.1.2 in PHP 7.1

I have hosted a journal on OJS version 3.1.0. The PHP version is 7.1.
I now want to upgrade OJS version to 3.1.2 but since the PHP version was 7.1 I tried to upgrade PHP to 7.3. After PHP up gradation the site is not visible. So I changed the PHP version from 7.3 to 7.1 again.

Is it possible to upgrade OJS version 3.1.0 to 3.1.2 in PHP 7.1 itself? If not possible, how to upgrade 7.1 to 7.3 without OJS being disappearing?

Hi @paulw,

In theory upgrading PHP and OJS at the same time should go like following:

  1. upgrade PHP (OJS will not work afterwards)
  2. upgrade OJS (following upgrade guide)

But my suggestion is that you create a separate copy of upgraded OJS and if everything OK, replace the old OJS with it.

Regards, Primo┼ż