function drupal_strlen

Counts the number of characters in a UTF-8 string.

This is less than or equal to the byte count.

Parameters

$text: The string to run the operation on.

Return value

integer The length of the string.

Related topics

File

includes/unicode.inc, line 479

Code

function drupal_strlen($text) {
    global $multibyte;
    if (is_null($text)) {
        return 0;
    }
    if ($multibyte == UNICODE_MULTIBYTE) {
        return mb_strlen($text);
    }
    else {
        // Do not count UTF-8 continuation bytes.
        return strlen(preg_replace("/[\x80-\xbf]/", '', $text));
    }
}