strlen and multi-byte characters

Hello Mailing List, I found that strlen is often considered as a function that counts characters in strings, rather than bytes. Such mistake is even often seen on blogs or tutorials, so many PHP beginners may get confused when they try to strlen a multi-byte characters string. I am attaching a patch proposition where the description notes that length is measured in bytes and adds an example showing results of strlen used on multi-byte character strings. Please let me know what do you think about this. Cheers, Adam

Attachment: [text/x-patch] strlen.xml.patch