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[scuttle] / includes / utf8 / str_split.php
1 <?php
2 /**
3 * @version $Id: str_split.php,v 1.1 2006/02/25 13:50:17 harryf Exp $
4 * @package utf8
5 * @subpackage strings
6 */
7
8 //---------------------------------------------------------------
9 /**
10 * UTF-8 aware alternative to str_split
11 * Convert a string to an array
12 * Note: requires utf8_strlen to be loaded
13 * @param string UTF-8 encoded
14 * @param int number to characters to split string by
15 * @return string characters in string reverses
16 * @see http://www.php.net/str_split
17 * @see utf8_strlen
18 * @package utf8
19 * @subpackage strings
20 */
21 function utf8_str_split($str, $split_len = 1) {
22     
23     if ( !preg_match('/^[0-9]+$/',$split_len) || $split_len < 1 ) {
24         return FALSE;
25     }
26     
27     $len = utf8_strlen($str);
28     if ( $len <= $split_len ) {
29         return array($str);
30     }
31     
32     preg_match_all('/.{'.$split_len.'}|[^\x00]{1,'.$split_len.'}$/us', $str, $ar);
33     return $ar[0];
34     
35 }

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