Be aware that iconv in PHP uses system implementations of locales and languages, what works under linux, normally doesn't in windows.
Also, you may notice that recent versions of linux (debian, ubuntu, centos, etc) the //TRANSLIT option doesn't work. since most distros doesn't include the intl packages (example: php5-intl and icuxx (where xx is a number) in debian) by default. And this because the intl package conflicts with another package needed for international DNS resolution.
Problem is that configuration is dependent of the sysadmin of the machine where you're hosted, so iconv is pretty much useless by default, depending on what configuration is used by your distro or the machine's admin.
