You need to restart the web server after any changes to php.ini.
If that doesnāt make it, check if you changed the correct php.ini. Go in Admin / Diagnostic, select phpinfo, download, unzip, find the php.ini path inside it.
1 Like
Been there, done that, still getting the messages
Ok, appearently ādisplay_errorsā was set as āonā in the php.ini file already, and it is rigth there where you have to set it as false, warnings finally dissapeared, thank you so much for your time and patience, I know it is hard to explain to someone as newbie as me.
Iām glad you got it working! 
1 Like
I had the same error warnings in a variety of areas with a brand new install of 7.10.9 on a shared server (Bluehost)
I was able to solve the issue by locating what I think was a test php.ini file called travis.php.ini in the applicationās root
I renamed the file php.ini
I edited the code from display_errors = On to display_errors = Off
Warning messages no longer appear.
Hope that works for you.