Enabling microseconds in Symfony2 (Doctrine) and MySQL
To create a datetime with microsecond you have to use DateTime::createFromFormat in your controller
$date = \DateTime::createFromFormat('U.u', (string)microtime(true));
tl;dr #
Follow this blog, create your own custom data type and use ithttps://blog.tomhanderson.com/2018/09/datetime-with-microseconds-for-mysql-in.html
For the patient and curios ones
I am coming here after having gone through the exact steps that you mentioned, upgrading mysql, changing column datatype precision manually, and I was at the exact state as you are...
This is not got to do with PHP version, but instead Doctrine has a role to play here.
Just like for decimal values doctrine supports precision and scale type="decimal" Ex: precision=10, scale=2, it should have supported for datetime, however it doesn't at the moment
The issue is currently being tracking here https://github.com/doctrine/dbal/issues/2873
However, there is a blog that explains a workaround until doctrine fixes this at their endhttps://blog.tomhanderson.com/2018/09/datetime-with-microseconds-for-mysql-in.html
I believe it was written by Tom H Anderson