I was wondering how do I find out how many bytes does a character have?
Source: Tips4all, CCNA FINAL EXAM
Source: Tips4all, CCNA FINAL EXAM
I am looking to create a system which on signup will create a subdomain on my website for the users account area.
If you want to find out how many UTF-8 bytes a letter in a PHP string has then:
ReplyDeleteprint strlen(mb_substr($string, 0, 1, "utf-8"));
strlen() returns the raw byte length, while mb_substr() returns a "character" according to the charset/encoding. In this example from position 0.
ASCII is 7 bits.
ReplyDeleteMost other languages use 8 bits (1 byte).
Many easter languages (Chinese, Japanese) use 16 bits (2 bytes).
Unicode is usually 32 bits (4 bytes).
How a character is stored and represented depends on the programming language and the platform you are using.