When using PHP-FPM, it does this:
php_admin_value[open_basedir] = none
php_admin_value[session.save_path] = /var/www/clients/client1/web3/tmp
php_admin_value[upload_tmp_dir] = /var/www/clients/client1/web3/tmp
Because of this, I can't set a different save path in my code. I tried setting it in custom PHP settings, but that doesn't seem to work either.
I think it's because php_admin_value cannot be overridden, but php_value can, so shouldn't ISPConfig be using php_value? (see here