Eat my monkeydust » Web http://eatmymonkeydust.com Life, PHP and Symfony - straight from the monkey's mouth Mon, 04 Aug 2008 08:57:48 +0000 http://wordpress.org/?v=2.6 en UTF-8 and strlen() http://eatmymonkeydust.com/2008/04/utf-8-and-strlen/ http://eatmymonkeydust.com/2008/04/utf-8-and-strlen/#comments Tue, 15 Apr 2008 10:14:27 +0000 Russ http://eatmymonkeydust.com/?p=9 Trying to find out the length of a string and wondering why the values are often wrong?

UTF-8 characters can be multi-byte, and strlen() returns the length of the string in bytes, which means the string ååå would actually have a “length” of 6.

One solution is to use the multibyte function “mb_strlen” instead, you will need to have PHP compiled with this - but it seems to be a default in later versions.

E.g.

$value = "ÅØÆbob";
echo strlen($value);
// 9
 
echo mb_strlen($value, 'UTF-8');
// 6
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