Apologies if this has been covered before. I searched a long time for someone having a similar problem, and found nothing.
I finally got a Multisite network up and running, and it seemed like everything was working fine. But then I went to our main site and found that some of the characters in the text were being converted into weird characters--for example, all apostrophes are changed to â€™.
The problem went away after I restored my backup wp-config, so the issue was obviously being caused by the lines I added to wp-config during the setup process.
Is anyone aware of this problem or what might be causing it? Or is there a simple solution?