PHP Notice: iconv() [function.iconv: Wrong charset, conversion from ‵ISO-8859-1′ to ‵UTF-8′ is not allowed
I had a problem with Apache giving this error. I found many posts from people with the same problem, but never a solution. I happened to stumble on the problem with my set up recently. I didn’t have the gconv (the glibc implementation of iconv) modules installed properly. If you have this problem, check for a directory named gconv with files like ISO8859-1.so in it.