1: <?php
2: /**
3: * Smarty shared plugin
4: *
5: * @package Smarty
6: * @subpackage PluginsShared
7: */
8: if (!function_exists('smarty_mb_str_replace')) {
9: /**
10: * Multibyte string replace
11: *
12: * @param string|string[] $search the string to be searched
13: * @param string|string[] $replace the replacement string
14: * @param string $subject the source string
15: * @param int &$count number of matches found
16: *
17: * @return string replaced string
18: * @author Rodney Rehm
19: */
20: function smarty_mb_str_replace($search, $replace, $subject, &$count = 0)
21: {
22: if (!is_array($search) && is_array($replace)) {
23: return false;
24: }
25: if (is_array($subject)) {
26: // call mb_replace for each single string in $subject
27: foreach ($subject as &$string) {
28: $string = smarty_mb_str_replace($search, $replace, $string, $c);
29: $count += $c;
30: }
31: } elseif (is_array($search)) {
32: if (!is_array($replace)) {
33: foreach ($search as &$string) {
34: $subject = smarty_mb_str_replace($string, $replace, $subject, $c);
35: $count += $c;
36: }
37: } else {
38: $n = max(count($search), count($replace));
39: while ($n--) {
40: $subject = smarty_mb_str_replace(current($search), current($replace), $subject, $c);
41: $count += $c;
42: next($search);
43: next($replace);
44: }
45: }
46: } else {
47: $mb_reg_charset = mb_regex_encoding();
48: // Check if mbstring regex is using UTF-8
49: $reg_is_unicode = !strcasecmp($mb_reg_charset, "UTF-8");
50: if(!$reg_is_unicode) {
51: // ...and set to UTF-8 if not
52: mb_regex_encoding("UTF-8");
53: }
54:
55: // See if charset used by Smarty is matching one used by regex...
56: $current_charset = mb_regex_encoding();
57: $convert_result = (bool)strcasecmp(Smarty::$_CHARSET, $current_charset);
58: if($convert_result) {
59: // ...convert to it if not.
60: $subject = mb_convert_encoding($subject, $current_charset, Smarty::$_CHARSET);
61: $search = mb_convert_encoding($search, $current_charset, Smarty::$_CHARSET);
62: $replace = mb_convert_encoding($replace, $current_charset, Smarty::$_CHARSET);
63: }
64:
65: $parts = mb_split(preg_quote($search), $subject);
66: // If original regex encoding was not unicode...
67: if(!$reg_is_unicode) {
68: // ...restore original regex encoding to avoid breaking the system.
69: mb_regex_encoding($mb_reg_charset);
70: }
71: if($parts === false) {
72: // This exception is thrown if call to mb_split failed.
73: // Usually it happens, when $search or $replace are not valid for given mb_regex_encoding().
74: // There may be other cases for it to fail, please file an issue if you find a reproducible one.
75: throw new SmartyException("Source string is not a valid $current_charset sequence (probably)");
76: }
77:
78: $count = count($parts) - 1;
79: $subject = implode($replace, $parts);
80: // Convert results back to charset used by Smarty, if needed.
81: if($convert_result) {
82: $subject = mb_convert_encoding($subject, Smarty::$_CHARSET, $current_charset);
83: }
84: }
85: return $subject;
86: }
87: }
88: