I have added to /etc/php.ini this
default_charset = "utf-8"
but phpinfo() shows
default_charset no value no value
and these are the mysql settings
Server: Localhost via UNIX socket
Server type: MySQL
Server version: 5.5.34 - MySQL Community Server (GPL)
Protocol version: 10
User: xxxxx
Server charset: UTF-8 Unicode (utf8)
p.s
all greek characters look right only the greek characters that show the jquery datatables plugin are displayed like
??, these data come to the page by ajax and json encode!