PHP Manual: iconv_strlen
iconv_strlen
Description
int iconv_strlen ( string str [, string charset] )
In contrast to strlen(),
iconv_strlen() counts the occurrences of characters
in the given byte sequence str on the basis of
the specified character set, the result of which is not necessarily
identical to the length of the string in byte.
Parameters
strThe string.
charsetIf
charsetparameter is omitted,stris assumed to be encoded in iconv.internal_encoding.