Updated to Magento 1.9.3.10 with PHP 7.2. If I save the sessions in db:
<session_save><![CDATA[db]]></session_save>
I get this error:
Recoverable Error: session_module_name(): Cannot set 'user' save handler by ini_set() or session_module_name() in /var/www/html/app/code/core/Mage/Core/Model/Session/Abstract/Varien.php on line 83
Best Answer
Unlike stated in the download page at magento.com, Magento > 1.9.3.8 seem still to require the "PHP 7.2 support" patch
PATCH-1.9.3.1-1.9.3.9_PHP7-2018-09-13-08-01-43.2_v2
.Full output should look like this: