36 lines
824 B
PHP
36 lines
824 B
PHP
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<?php
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/**
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* @version $Id$
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* @package utf8
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* @subpackage strings
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*/
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//---------------------------------------------------------------
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/**
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* UTF-8 aware alternative to str_split
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* Convert a string to an array
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* Note: requires utf8_strlen to be loaded
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* @param string UTF-8 encoded
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* @param int number to characters to split string by
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* @return string characters in string reverses
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* @see http://www.php.net/str_split
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* @see utf8_strlen
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* @package utf8
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* @subpackage strings
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*/
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function utf8_str_split($str, $split_len = 1) {
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if ( !preg_match('/^[0-9]+$/',$split_len) || $split_len < 1 ) {
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return FALSE;
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}
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$len = utf8_strlen($str);
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if ( $len <= $split_len ) {
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return array($str);
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}
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preg_match_all('/.{'.$split_len.'}|[^\x00]{1,'.$split_len.'}$/us', $str, $ar);
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return $ar[0];
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}
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