php Shim用于不支持mb_string函数的服务器。从Patchwork修改。用法：if（！function_exists（'mb_strtolower'））{require_o
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<?php
/*
* Copyright (C) 2013 Nicolas Grekas - p@tchwork.com
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the (at your option):
* Apache License v2.0 (http://apache.org/licenses/LICENSE-2.0.txt), or
* GNU General Public License v2.0 (http://gnu.org/licenses/gpl-2.0.txt).
*/
/**
* Partial mbstring implementation in PHP, iconv based, UTF-8 centric.
*
* Implemented:
* - mb_convert_encoding - Convert character encoding
* - mb_decode_mimeheader - Decode string in MIME header field
* - mb_encode_mimeheader - Encode string for MIME header XXX NATIVE IMPLEMENTATION IS REALLY BUGGED
* - mb_convert_case - Perform case folding on a string
* - mb_internal_encoding - Set/Get internal character encoding
* - mb_list_encodings - Returns an array of all supported encodings
* - mb_strlen - Get string length
* - mb_strpos - Find position of first occurrence of string in a string
* - mb_strrpos - Find position of last occurrence of a string in a string
* - mb_strtolower - Make a string lowercase
* - mb_strtoupper - Make a string uppercase
* - mb_substitute_character - Set/Get substitution character
* - mb_substr - Get part of string
* - mb_stripos - Finds position of first occurrence of a string within another, case insensitive
* - mb_stristr - Finds first occurrence of a string within another, case insensitive
* - mb_strrchr - Finds the last occurrence of a character in a string within another
* - mb_strrichr - Finds the last occurrence of a character in a string within another, case insensitive
* - mb_strripos - Finds position of last occurrence of a string within another, case insensitive
* - mb_strstr - Finds first occurrence of a string within anothers
*
* Not implemented:
* - mb_convert_kana - Convert "kana" one from another ("zen-kaku", "han-kaku" and more)
* - mb_convert_variables - Convert character code in variable(s)
* - mb_decode_numericentity - Decode HTML numeric string reference to character
* - mb_encode_numericentity - Encode character to HTML numeric string reference
* - mb_ereg* - Regular expression with multibyte support
* - mb_get_info - Get internal settings of mbstring
* - mb_http_input - Detect HTTP input character encoding
* - mb_http_output - Set/Get HTTP output character encoding
* - mb_list_mime_names - Returns an array or string of all supported mime names
* - mb_output_handler - Callback function converts character encoding in output buffer
* - mb_parse_str - Parse GET/POST/COOKIE data and set global variable
* - mb_preferred_mime_name - Get MIME charset string
* - mb_regex_encoding - Returns current encoding for multibyte regex as string
* - mb_regex_set_options - Set/Get the default options for mbregex functions
* - mb_send_mail - Send encoded mail
* - mb_split - Split multibyte string using regular expression
* - mb_strcut - Get part of string
* - mb_strimwidth - Get truncated string with specified width
* - mb_strwidth - Return width of string
* - mb_substr_count - Count the number of substring occurrences
*/
if( !class_exists('PatchworkMbstring') ) {
class PatchworkMbstring
{
const MB_CASE_FOLD = PHP_INT_MAX;
protected static
$encoding_list = array('ASCII', 'UTF-8'),
$language = 'neutral',
$internal_encoding = 'UTF-8',
$caseFold = array(
array('µ','?',"\xCD\x85",'?',"\xCF\x90","\xCF\x91","\xCF\x95","\xCF\x96","\xCF\xB0","\xCF\xB1","\xCF\xB5","\xE1\xBA\x9B","\xE1\xBE\xBE"),
array('µ','s','?', 's','ß', '?', 'f', 'p', '?', '?', 'e', "\xE1\xB9\xA1",'?' )
);
static function mb_convert_encoding($s, $to_encoding, $from_encoding = INF)
{
INF === $from_encoding && $from_encoding = self::$internal_encoding;
$from_encoding = strtolower($from_encoding);
$to_encoding = strtolower($to_encoding);
if ('base64' === $from_encoding)
{
$s = base64_decode($s);
$from_encoding = $to_encoding;
}
if ('base64' === $to_encoding) return base64_encode($s);
if ('html-entities' === $to_encoding)
{
'html-entities' === $from_encoding && $from_encoding = 'Windows-1252';
'utf-8' === $from_encoding
|| 'utf8' === $from_encoding
|| $s = iconv($from_encoding, 'UTF-8//IGNORE', $s);
return preg_replace_callback('/[\x80-\xFF]+/', array(__CLASS__, 'html_encoding_callback'), $s);
}
if ('html-entities' === $from_encoding)
{
$s = html_entity_decode($s, ENT_COMPAT, 'UTF-8');
$from_encoding = 'UTF-8';
}
return iconv($from_encoding, $to_encoding . '//IGNORE', $s);
}
static function mb_decode_mimeheader($s)
{
return iconv_mime_decode($s, 2, self::$internal_encoding . '//IGNORE');
}
static function mb_encode_mimeheader($s, $charset = INF, $transfer_encoding = INF, $linefeed = INF, $indent = INF)
{
user_error('mb_encode_mimeheader() is bugged. Please use iconv_mime_encode() instead', E_USER_WARNING);
}
static function mb_convert_case($s, $mode, $encoding = INF)
{
if ('' === $s .= '') return '';
if (INF === $encoding) $encoding = self::$internal_encoding;
else $encoding = strtoupper($encoding);
if ('UTF-8' === $encoding || 'UTF8' === $encoding) $encoding = INF;
else $s = iconv($encoding, 'UTF-8//IGNORE', $s);
if (MB_CASE_TITLE == $mode)
{
$s = preg_replace_callback('/\b\p{Ll}/u', array(__CLASS__, 'title_case_upper'), $s);
$s = preg_replace_callback('/\B[\p{Lu}\p{Lt}]+/u', array(__CLASS__, 'title_case_lower'), $s);
}
else
{
if (MB_CASE_UPPER == $mode)
{
static $upper;
isset($upper) || $upper = static::getData('upperCase');
$map = $upper;
}
else
{
if (self::MB_CASE_FOLD === $mode) $s = str_replace(self::$caseFold[0], self::$caseFold[1], $s);
static $lower;
isset($lower) || $lower = static::getData('lowerCase');
$map = $lower;
}
static $ulen_mask = array("\xC0" => 2, "\xD0" => 2, "\xE0" => 3, "\xF0" => 4);
$i = 0;
$len = strlen($s);
while ($i < $len)
{
$ulen = $s[$i] < "\x80" ? 1 : $ulen_mask[$s[$i] & "\xF0"];
$uchr = substr($s, $i, $ulen);
$i += $ulen;
if (isset($map[$uchr]))
{
$uchr = $map[$uchr];
$nlen = strlen($uchr);
if ($nlen == $ulen)
{
$nlen = $i;
do $s[--$nlen] = $uchr[--$ulen];
while ($ulen);
}
else
{
$s = substr_replace($s, $uchr, $i - $ulen, $ulen);
$len += $nlen - $ulen;
$i += $nlen - $ulen;
}
}
}
}
if (INF === $encoding) return $s;
else return iconv('UTF-8', $encoding, $s);
}
static function mb_internal_encoding($encoding = INF)
{
if (INF === $encoding) return self::$internal_encoding;
else $encoding = strtoupper($encoding);
if ('UTF-8' === $encoding || 'UTF8' === $encoding || false !== @iconv($encoding, $encoding, ' '))
{
self::$internal_encoding = 'UTF8' === $encoding ? 'UTF-8' : $encoding;
return true;
}
return false;
}
static function mb_language($lang = INF)
{
if (INF === $lang) return self::$language;
switch ($lang = strtolower($lang))
{
case 'uni':
case 'neutral':
self::$language = $lang;
return true;
}
return false;
}
static function mb_list_encodings()
{
return array('UTF-8');
}
static function mb_encoding_aliases($encoding)
{
switch (strtolower($encoding))
{
case 'utf8':
case 'utf-8': return array('utf8');
}
return false;
}
static function mb_check_encoding($var = INF, $encoding = INF)
{
if (INF === $encoding)
{
if (INF === $var) return false;
$encoding = self::$internal_encoding;
}
return false !== mb_detect_encoding($var, array($encoding), true);
}
static function mb_detect_encoding($str, $encoding_list = INF, $strict = false)
{
if (INF === $encoding_list) $encoding_list = self::$encoding_list;
else
{
if (! is_array($encoding_list)) $encoding_list = array_map('trim', explode(',', $encoding_list));
$encoding_list = array_map('strtoupper', $encoding_list);
}
foreach ($encoding_list as $enc)
{
switch ($enc)
{
case 'ASCII':
if (! preg_match('/[\x80-\xFF]/', $str)) return $enc;
break;
case 'UTF8':
case 'UTF-8':
if (preg_match('//u', $str)) return $enc;
break;
default:
return strncmp($enc, 'ISO-8859-', 9) ? false : $enc;
}
}
return false;
}
static function mb_detect_order($encoding_list = INF)
{
if (INF === $encoding_list) return self::$encoding_list;
if (! is_array($encoding_list)) $encoding_list = array_map('trim', explode(',', $encoding_list));
$encoding_list = array_map('strtoupper', $encoding_list);
foreach ($encoding_list as $enc)
{
switch ($enc)
{
default: if (strncmp($enc, 'ISO-8859-', 9)) return false;
case 'ASCII':
case 'UTF8':
case 'UTF-8':
}
}
self::$encoding_list = $encoding_list;
return true;
}
static function mb_strlen($s, $encoding = INF)
{
INF === $encoding && $encoding = self::$internal_encoding;
return iconv_strlen($s, $encoding . '//IGNORE');
}
static function mb_strpos ($haystack, $needle, $offset = 0, $encoding = INF)
{
INF === $encoding && $encoding = self::$internal_encoding;
if ('' === $needle .= '')
{
user_error(__METHOD__ . ': Empty delimiter', E_USER_WARNING);
return false;
}
else return iconv_strpos($haystack, $needle, $offset, $encoding . '//IGNORE');
}
static function mb_strrpos($haystack, $needle, $offset = 0, $encoding = INF)
{
INF === $encoding && $encoding = self::$internal_encoding;
if ($offset != (int) $offset)
{
$offset = 0;
}
else if ($offset = (int) $offset)
{
$haystack = self::mb_substr($haystack, $offset, 2147483647, $encoding);
}
$pos = iconv_strrpos($haystack, $needle, $encoding . '//IGNORE');
return false !== $pos ? $offset + $pos : false;
}
static function mb_strtolower($s, $encoding = INF)
{
return self::mb_convert_case($s, MB_CASE_LOWER, $encoding);
}
static function mb_strtoupper($s, $encoding = INF)
{
return self::mb_convert_case($s, MB_CASE_UPPER, $encoding);
}
static function mb_substitute_character($c = INF)
{
return INF !== $c ? false : 'none';
}
static function mb_substr($s, $start, $length = null, $encoding = INF)
{
INF === $encoding && $encoding = self::$internal_encoding;
if ($start < 0)
{
$start = iconv_strlen($s, $encoding . '//IGNORE') + $start;
if ($start < 0) $start = 0;
}
if (null === $length) $length = 2147483647;
else if ($length < 0)
{
$length = iconv_strlen($s, $encoding . '//IGNORE') + $length - $start;
if ($length < 0) return '';
}
return iconv_substr($s, $start, $length, $encoding . '//IGNORE') . '';
}
static function mb_stripos($haystack, $needle, $offset = 0, $encoding = INF)
{
INF === $encoding && $encoding = self::$internal_encoding;
$haystack = self::mb_convert_case($haystack, self::MB_CASE_FOLD, $encoding);
$needle = self::mb_convert_case($needle, self::MB_CASE_FOLD, $encoding);
return self::mb_strpos($haystack, $needle, $offset, $encoding);
}
static function mb_stristr($haystack, $needle, $part = false, $encoding = INF)
{
$pos = self::mb_stripos($haystack, $needle, 0, $encoding);
return self::getSubpart($pos, $part, $haystack, $encoding);
}
static function mb_strrchr($haystack, $needle, $part = false, $encoding = INF)
{
INF === $encoding && $encoding = self::$internal_encoding;
$needle = self::mb_substr($needle, 0, 1, $encoding);
$pos = iconv_strrpos($haystack, $needle, $encoding);
return self::getSubpart($pos, $part, $haystack, $encoding);
}
static function mb_strrichr($haystack, $needle, $part = false, $encoding = INF)
{
$needle = self::mb_substr($needle, 0, 1, $encoding);
$pos = self::mb_strripos($haystack, $needle, $encoding);
return self::getSubpart($pos, $part, $haystack, $encoding);
}
static function mb_strripos($haystack, $needle, $offset = 0, $encoding = INF)
{
INF === $encoding && $encoding = self::$internal_encoding;
$haystack = self::mb_convert_case($haystack, self::MB_CASE_FOLD, $encoding);
$needle = self::mb_convert_case($needle, self::MB_CASE_FOLD, $encoding);
return self::mb_strrpos($haystack, $needle, $offset, $encoding);
}
static function mb_strstr($haystack, $needle, $part = false, $encoding = INF)
{
$pos = strpos($haystack, $needle);
if (false === $pos) return false;
if ($part) return substr($haystack, 0, $pos);
else return substr($haystack, $pos);
}
protected static function getSubpart($pos, $part, $haystack, $encoding)
{
INF === $encoding && $encoding = self::$internal_encoding;
if (false === $pos) return false;
if ($part) return self::mb_substr($haystack, 0, $pos, $encoding);
else return self::mb_substr($haystack, $pos, null, $encoding);
}
protected static function html_encoding_callback($m)
{
return htmlentities($m[0], ENT_COMPAT, 'UTF-8');
}
protected static function title_case_lower($s)
{
return self::mb_convert_case($s[0], MB_CASE_LOWER, 'UTF-8');
}
protected static function title_case_upper($s)
{
return self::mb_convert_case($s[0], MB_CASE_UPPER, 'UTF-8');
}
protected static function getData($file)
{
$file = __DIR__ . '/unidata/' . $file . '.ser';
if (file_exists($file)) return unserialize(file_get_contents($file));
else return false;
}
}
}
const MB_OVERLOAD_MAIL = 1;
const MB_OVERLOAD_STRING = 2;
const MB_OVERLOAD_REGEX = 4;
const MB_CASE_UPPER = 0;
const MB_CASE_LOWER = 1;
const MB_CASE_TITLE = 2;
if(!function_exists('mb_convert_encoding')) {
function mb_convert_encoding($s, $to, $from = INF) {return PatchworkMbstring::mb_convert_encoding($s, $to, $from);};
}
if(!function_exists('mb_decode_mimeheader')) {
function mb_decode_mimeheader($s) {return PatchworkMbstring::mb_decode_mimeheader($s);};
}
if(!function_exists('mb_encode_mimeheader')) {
function mb_encode_mimeheader($s, $charset = INF, $transfer_enc = INF, $lf = INF, $indent = INF) {return PatchworkMbstring::mb_encode_mimeheader($s, $charset, $transfer_enc, $lf, $indent);};
}
if(!function_exists('mb_convert_case')) {
function mb_convert_case($s, $mode, $enc = INF) {return PatchworkMbstring::mb_convert_case($s, $mode, $enc);};
}
if(!function_exists('mb_internal_encoding')) {
function mb_internal_encoding($enc = INF) {return PatchworkMbstring::mb_internal_encoding($enc);};
}
if(!function_exists('mb_language')) {
function mb_language($lang = INF) {return PatchworkMbstring::mb_language($lang);}
}
if(!function_exists('mb_list_encodings')) {
function mb_list_encodings() {return PatchworkMbstring::mb_list_encodings();};
}
if(!function_exists('mb_encoding_aliases')) {
function mb_encoding_aliases($encoding) {return PatchworkMbstring::mb_encoding_aliases($encoding);}
}
if(!function_exists('mb_check_encoding')) {
function mb_check_encoding($var = INF, $encoding = INF) {return PatchworkMbstring::mb_check_encoding($var, $encoding);}
}
if(!function_exists('mb_detect_encoding')) {
function mb_detect_encoding($str, $encoding_list = INF, $strict = false) {return PatchworkMbstring::mb_detect_encoding($str, $encoding_list, $strict);}
}
if(!function_exists('mb_detect_order')) {
function mb_detect_order($encoding_list = INF) {return PatchworkMbstring::mb_detect_order($encoding_list);}
}
if(!function_exists('mb_parse_str')) {
function mb_parse_str($s, &$result = array()) {return parse_str($s, $result);};
}
if(!function_exists('mb_strlen')) {
function mb_strlen($s, $enc = INF) {return PatchworkMbstring::mb_strlen($s, $enc);};
}
if(!function_exists('mb_strpos')) {
function mb_strpos($s, $needle, $offset = 0, $enc = INF) {return PatchworkMbstring::mb_strpos($s, $needle, $offset, $enc);};
}
if(!function_exists('mb_strtolower')) {
function mb_strtolower($s, $enc = INF) {return PatchworkMbstring::mb_strtolower($s, $enc);};
}
if(!function_exists('mb_strtoupper')) {
function mb_strtoupper($s, $enc = INF) {return PatchworkMbstring::mb_strtoupper($s, $enc);};
}
if(!function_exists('mb_substitute_character')) {
function mb_substitute_character($char = INF) {return PatchworkMbstring::mb_substitute_character($char);};
}
if(!function_exists('mb_substr_count')) {
function mb_substr_count($s, $needle) {return substr_count($s, $needle);};
}
if(!function_exists('mb_substr')) {
function mb_substr($s, $start, $length = 2147483647, $enc = INF) {return PatchworkMbstring::mb_substr($s, $start, $length, $enc);};
}
if(!function_exists('mb_stripos')) {
function mb_stripos($s, $needle, $offset = 0, $enc = INF) {return PatchworkMbstring::mb_stripos($s, $needle, $offset, $enc);};
}
if(!function_exists('mb_stristr')) {
function mb_stristr($s, $needle, $part = false, $enc = INF) {return PatchworkMbstring::mb_stristr($s, $needle, $part, $enc);};
}
if(!function_exists('mb_strrchr')) {
function mb_strrchr($s, $needle, $part = false, $enc = INF) {return PatchworkMbstring::mb_strrchr($s, $needle, $part, $enc);};
}
if(!function_exists('mb_strrichr')) {
function mb_strrichr($s, $needle, $part = false, $enc = INF) {return PatchworkMbstring::mb_strrichr($s, $needle, $part, $enc);};
}
if(!function_exists('mb_strripos')) {
function mb_strripos($s, $needle, $offset = 0, $enc = INF) {return PatchworkMbstring::mb_strripos($s, $needle, $offset, $enc);};
}
if(!function_exists('mb_strrpos')) {
function mb_strrpos($s, $needle, $offset = 0, $enc = INF) {return PatchworkMbstring::mb_strrpos($s, $needle, $offset, $enc);};
}
if(!function_exists('mb_strstr')) {
function mb_strstr($s, $needle, $part = false, $enc = INF) {return PatchworkMbstring::mb_strstr($s, $needle, $part, $enc);};
}以上是关于php Shim用于不支持mb_string函数的服务器。从Patchwork修改。用法：if（！function_exists（'mb_strtolower'））{require_o的主要内容，如果未能解决你的问题，请参考以下文章