4.7.x unicode.inc drupal_strlen($text)
5.x unicode.inc drupal_strlen($text)
6.x unicode.inc drupal_strlen($text)
7.x unicode.inc drupal_strlen($text)

Count the amount of characters in a UTF-8 string. This is less than or equal to the byte count.

9 calls to drupal_strlen()
node_teaser in modules/node/node.module
Generate a teaser for a node body.
search_expand_cjk in modules/search/search.module
Basic CJK tokenizer. Simply splits a string into consecutive, overlapping sequences of characters ('minimum_word_size' long).
search_index in modules/search/search.module
Update the full-text search index for a particular item.
theme_username in includes/theme.inc
Format a username.
truncate_utf8 in includes/unicode.inc
Truncate a UTF-8-encoded string safely to a number of characters.

... See full list


includes/unicode.inc, line 406


function drupal_strlen($text) {
  global $multibyte;
  if ($multibyte == UNICODE_MULTIBYTE) {
    return mb_strlen($text);
  else {
    // Do not count UTF-8 continuation bytes.
    return strlen(preg_replace("/[\x80-\xBF]/", '', $text));