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Copy pathutf8.php
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1618 lines (1469 loc) · 83.4 KB
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<?php
/**
* UTF8 helper functions
*
* @license LGPL 2.1 (http://www.gnu.org/copyleft/lesser.html)
* @author Andreas Gohr <andi@splitbrain.org>
*/
/**
* check for mb_string support
*/
if(!defined('UTF8_MBSTRING')){
if(function_exists('mb_substr') && !defined('UTF8_NOMBSTRING')){
define('UTF8_MBSTRING',1);
}else{
define('UTF8_MBSTRING',0);
}
}
if(UTF8_MBSTRING){ mb_internal_encoding('UTF-8'); }
if(!function_exists('utf8_isASCII')){
/**
* Checks if a string contains 7bit ASCII only
*
* @author Andreas Haerter <andreas.haerter@dev.mail-node.com>
*/
function utf8_isASCII($str){
return (preg_match('/(?:[^\x00-\x7F])/', $str) !== 1);
}
}
if(!function_exists('utf8_strip')){
/**
* Strips all highbyte chars
*
* Returns a pure ASCII7 string
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function utf8_strip($str){
$ascii = '';
$len = strlen($str);
for($i=0; $i<$len; $i++){
if(ord($str{$i}) <128){
$ascii .= $str{$i};
}
}
return $ascii;
}
}
if(!function_exists('utf8_check')){
/**
* Tries to detect if a string is in Unicode encoding
*
* @author <bmorel@ssi.fr>
* @link http://www.php.net/manual/en/function.utf8-encode.php
*/
function utf8_check($Str) {
$len = strlen($Str);
for ($i=0; $i<$len; $i++) {
$b = ord($Str[$i]);
if ($b < 0x80) continue; # 0bbbbbbb
elseif (($b & 0xE0) == 0xC0) $n=1; # 110bbbbb
elseif (($b & 0xF0) == 0xE0) $n=2; # 1110bbbb
elseif (($b & 0xF8) == 0xF0) $n=3; # 11110bbb
elseif (($b & 0xFC) == 0xF8) $n=4; # 111110bb
elseif (($b & 0xFE) == 0xFC) $n=5; # 1111110b
else return false; # Does not match any model
for ($j=0; $j<$n; $j++) { # n bytes matching 10bbbbbb follow ?
if ((++$i == $len) || ((ord($Str[$i]) & 0xC0) != 0x80))
return false;
}
}
return true;
}
}
if(!function_exists('utf8_strlen')){
/**
* Unicode aware replacement for strlen()
*
* utf8_decode() converts characters that are not in ISO-8859-1
* to '?', which, for the purpose of counting, is alright - It's
* even faster than mb_strlen.
*
* @author <chernyshevsky at hotmail dot com>
* @see strlen()
* @see utf8_decode()
*/
function utf8_strlen($string){
return strlen(utf8_decode($string));
}
}
if(!function_exists('utf8_substr')){
/**
* UTF-8 aware alternative to substr
*
* Return part of a string given character offset (and optionally length)
*
* @author Harry Fuecks <hfuecks@gmail.com>
* @author Chris Smith <chris@jalakai.co.uk>
* @param string
* @param integer number of UTF-8 characters offset (from left)
* @param integer (optional) length in UTF-8 characters from offset
* @return mixed string or false if failure
*/
function utf8_substr($str, $offset, $length = null) {
if(UTF8_MBSTRING){
if( $length === null ){
return mb_substr($str, $offset);
}else{
return mb_substr($str, $offset, $length);
}
}
/*
* Notes:
*
* no mb string support, so we'll use pcre regex's with 'u' flag
* pcre only supports repetitions of less than 65536, in order to accept up to MAXINT values for
* offset and length, we'll repeat a group of 65535 characters when needed (ok, up to MAXINT-65536)
*
* substr documentation states false can be returned in some cases (e.g. offset > string length)
* mb_substr never returns false, it will return an empty string instead.
*
* calculating the number of characters in the string is a relatively expensive operation, so
* we only carry it out when necessary. It isn't necessary for +ve offsets and no specified length
*/
// cast parameters to appropriate types to avoid multiple notices/warnings
$str = (string)$str; // generates E_NOTICE for PHP4 objects, but not PHP5 objects
$offset = (int)$offset;
if (!is_null($length)) $length = (int)$length;
// handle trivial cases
if ($length === 0) return '';
if ($offset < 0 && $length < 0 && $length < $offset) return '';
$offset_pattern = '';
$length_pattern = '';
// normalise -ve offsets (we could use a tail anchored pattern, but they are horribly slow!)
if ($offset < 0) {
$strlen = strlen(utf8_decode($str)); // see notes
$offset = $strlen + $offset;
if ($offset < 0) $offset = 0;
}
// establish a pattern for offset, a non-captured group equal in length to offset
if ($offset > 0) {
$Ox = (int)($offset/65535);
$Oy = $offset%65535;
if ($Ox) $offset_pattern = '(?:.{65535}){'.$Ox.'}';
$offset_pattern = '^(?:'.$offset_pattern.'.{'.$Oy.'})';
} else {
$offset_pattern = '^'; // offset == 0; just anchor the pattern
}
// establish a pattern for length
if (is_null($length)) {
$length_pattern = '(.*)$'; // the rest of the string
} else {
if (!isset($strlen)) $strlen = strlen(utf8_decode($str)); // see notes
if ($offset > $strlen) return ''; // another trivial case
if ($length > 0) {
$length = min($strlen-$offset, $length); // reduce any length that would go passed the end of the string
$Lx = (int)($length/65535);
$Ly = $length%65535;
// +ve length requires ... a captured group of length characters
if ($Lx) $length_pattern = '(?:.{65535}){'.$Lx.'}';
$length_pattern = '('.$length_pattern.'.{'.$Ly.'})';
} else if ($length < 0) {
if ($length < ($offset - $strlen)) return '';
$Lx = (int)((-$length)/65535);
$Ly = (-$length)%65535;
// -ve length requires ... capture everything except a group of -length characters
// anchored at the tail-end of the string
if ($Lx) $length_pattern = '(?:.{65535}){'.$Lx.'}';
$length_pattern = '(.*)(?:'.$length_pattern.'.{'.$Ly.'})$';
}
}
if (!preg_match('#'.$offset_pattern.$length_pattern.'#us',$str,$match)) return '';
return $match[1];
}
}
if(!function_exists('utf8_substr_replace')){
/**
* Unicode aware replacement for substr_replace()
*
* @author Andreas Gohr <andi@splitbrain.org>
* @see substr_replace()
*/
function utf8_substr_replace($string, $replacement, $start , $length=0 ){
$ret = '';
if($start>0) $ret .= utf8_substr($string, 0, $start);
$ret .= $replacement;
$ret .= utf8_substr($string, $start+$length);
return $ret;
}
}
if(!function_exists('utf8_ltrim')){
/**
* Unicode aware replacement for ltrim()
*
* @author Andreas Gohr <andi@splitbrain.org>
* @see ltrim()
* @return string
*/
function utf8_ltrim($str,$charlist=''){
if($charlist == '') return ltrim($str);
//quote charlist for use in a characterclass
$charlist = preg_replace('!([\\\\\\-\\]\\[/])!','\\\${1}',$charlist);
return preg_replace('/^['.$charlist.']+/u','',$str);
}
}
if(!function_exists('utf8_rtrim')){
/**
* Unicode aware replacement for rtrim()
*
* @author Andreas Gohr <andi@splitbrain.org>
* @see rtrim()
* @return string
*/
function utf8_rtrim($str,$charlist=''){
if($charlist == '') return rtrim($str);
//quote charlist for use in a characterclass
$charlist = preg_replace('!([\\\\\\-\\]\\[/])!','\\\${1}',$charlist);
return preg_replace('/['.$charlist.']+$/u','',$str);
}
}
if(!function_exists('utf8_trim')){
/**
* Unicode aware replacement for trim()
*
* @author Andreas Gohr <andi@splitbrain.org>
* @see trim()
* @return string
*/
function utf8_trim($str,$charlist='') {
if($charlist == '') return trim($str);
return utf8_ltrim(utf8_rtrim($str,$charlist),$charlist);
}
}
if(!function_exists('utf8_strtolower')){
/**
* This is a unicode aware replacement for strtolower()
*
* Uses mb_string extension if available
*
* @author Leo Feyer <leo@typolight.org>
* @see strtolower()
* @see utf8_strtoupper()
*/
function utf8_strtolower($string){
if(UTF8_MBSTRING) return mb_strtolower($string,'utf-8');
global $UTF8_UPPER_TO_LOWER;
return strtr($string,$UTF8_UPPER_TO_LOWER);
}
}
if(!function_exists('utf8_strtoupper')){
/**
* This is a unicode aware replacement for strtoupper()
*
* Uses mb_string extension if available
*
* @author Leo Feyer <leo@typolight.org>
* @see strtoupper()
* @see utf8_strtoupper()
*/
function utf8_strtoupper($string){
if(UTF8_MBSTRING) return mb_strtoupper($string,'utf-8');
global $UTF8_LOWER_TO_UPPER;
return strtr($string,$UTF8_LOWER_TO_UPPER);
}
}
if(!function_exists('utf8_ucfirst')){
/**
* UTF-8 aware alternative to ucfirst
* Make a string's first character uppercase
*
* @author Harry Fuecks
* @param string
* @return string with first character as upper case (if applicable)
*/
function utf8_ucfirst($str){
switch ( utf8_strlen($str) ) {
case 0:
return '';
case 1:
return utf8_strtoupper($str);
default:
preg_match('/^(.{1})(.*)$/us', $str, $matches);
return utf8_strtoupper($matches[1]).$matches[2];
}
}
}
if(!function_exists('utf8_ucwords')){
/**
* UTF-8 aware alternative to ucwords
* Uppercase the first character of each word in a string
*
* @author Harry Fuecks
* @param string
* @return string with first char of each word uppercase
* @see http://www.php.net/ucwords
*/
function utf8_ucwords($str) {
// Note: [\x0c\x09\x0b\x0a\x0d\x20] matches;
// form feeds, horizontal tabs, vertical tabs, linefeeds and carriage returns
// This corresponds to the definition of a "word" defined at http://www.php.net/ucwords
$pattern = '/(^|([\x0c\x09\x0b\x0a\x0d\x20]+))([^\x0c\x09\x0b\x0a\x0d\x20]{1})[^\x0c\x09\x0b\x0a\x0d\x20]*/u';
return preg_replace_callback($pattern, 'utf8_ucwords_callback',$str);
}
/**
* Callback function for preg_replace_callback call in utf8_ucwords
* You don't need to call this yourself
*
* @author Harry Fuecks
* @param array of matches corresponding to a single word
* @return string with first char of the word in uppercase
* @see utf8_ucwords
* @see utf8_strtoupper
*/
function utf8_ucwords_callback($matches) {
$leadingws = $matches[2];
$ucfirst = utf8_strtoupper($matches[3]);
$ucword = utf8_substr_replace(ltrim($matches[0]),$ucfirst,0,1);
return $leadingws . $ucword;
}
}
if(!function_exists('utf8_deaccent')){
/**
* Replace accented UTF-8 characters by unaccented ASCII-7 equivalents
*
* Use the optional parameter to just deaccent lower ($case = -1) or upper ($case = 1)
* letters. Default is to deaccent both cases ($case = 0)
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function utf8_deaccent($string,$case=0){
if($case <= 0){
global $UTF8_LOWER_ACCENTS;
$string = strtr($string,$UTF8_LOWER_ACCENTS);
}
if($case >= 0){
global $UTF8_UPPER_ACCENTS;
$string = strtr($string,$UTF8_UPPER_ACCENTS);
}
return $string;
}
}
if(!function_exists('utf8_romanize')){
/**
* Romanize a non-latin string
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function utf8_romanize($string){
if(utf8_isASCII($string)) return $string; //nothing to do
global $UTF8_ROMANIZATION;
return strtr($string,$UTF8_ROMANIZATION);
}
}
if(!function_exists('utf8_stripspecials')){
/**
* Removes special characters (nonalphanumeric) from a UTF-8 string
*
* This function adds the controlchars 0x00 to 0x19 to the array of
* stripped chars (they are not included in $UTF8_SPECIAL_CHARS)
*
* @author Andreas Gohr <andi@splitbrain.org>
* @param string $string The UTF8 string to strip of special chars
* @param string $repl Replace special with this string
* @param string $additional Additional chars to strip (used in regexp char class)
*/
function utf8_stripspecials($string,$repl='',$additional=''){
global $UTF8_SPECIAL_CHARS;
global $UTF8_SPECIAL_CHARS2;
static $specials = null;
if(is_null($specials)){
#$specials = preg_quote(unicode_to_utf8($UTF8_SPECIAL_CHARS), '/');
$specials = preg_quote($UTF8_SPECIAL_CHARS2, '/');
}
return preg_replace('/['.$additional.'\x00-\x19'.$specials.']/u',$repl,$string);
}
}
if(!function_exists('utf8_strpos')){
/**
* This is an Unicode aware replacement for strpos
*
* @author Leo Feyer <leo@typolight.org>
* @see strpos()
* @param string
* @param string
* @param integer
* @return integer
*/
function utf8_strpos($haystack, $needle, $offset=0){
$comp = 0;
$length = null;
while (is_null($length) || $length < $offset) {
$pos = strpos($haystack, $needle, $offset + $comp);
if ($pos === false)
return false;
$length = utf8_strlen(substr($haystack, 0, $pos));
if ($length < $offset)
$comp = $pos - $length;
}
return $length;
}
}
if(!function_exists('utf8_tohtml')){
/**
* Encodes UTF-8 characters to HTML entities
*
* @author Tom N Harris <tnharris@whoopdedo.org>
* @author <vpribish at shopping dot com>
* @link http://www.php.net/manual/en/function.utf8-decode.php
*/
function utf8_tohtml ($str) {
$ret = '';
foreach (utf8_to_unicode($str) as $cp) {
if ($cp < 0x80)
$ret .= chr($cp);
elseif ($cp < 0x100)
$ret .= "&#$cp;";
else
$ret .= '&#x'.dechex($cp).';';
}
return $ret;
}
}
if(!function_exists('utf8_unhtml')){
/**
* Decodes HTML entities to UTF-8 characters
*
* Convert any &#..; entity to a codepoint,
* The entities flag defaults to only decoding numeric entities.
* Pass HTML_ENTITIES and named entities, including & < etc.
* are handled as well. Avoids the problem that would occur if you
* had to decode "&#38;&amp;#38;"
*
* unhtmlspecialchars(utf8_unhtml($s)) -> "&&"
* utf8_unhtml(unhtmlspecialchars($s)) -> "&&#38;"
* what it should be -> "&&#38;"
*
* @author Tom N Harris <tnharris@whoopdedo.org>
* @param string $str UTF-8 encoded string
* @param boolean $entities Flag controlling decoding of named entities.
* @return UTF-8 encoded string with numeric (and named) entities replaced.
*/
function utf8_unhtml($str, $entities=null) {
static $decoder = null;
if (is_null($decoder))
$decoder = new utf8_entity_decoder();
if (is_null($entities))
return preg_replace_callback('/(&#([Xx])?([0-9A-Za-z]+);)/m',
'utf8_decode_numeric', $str);
else
return preg_replace_callback('/&(#)?([Xx])?([0-9A-Za-z]+);/m',
array(&$decoder, 'decode'), $str);
}
}
if(!function_exists('utf8_decode_numeric')){
function utf8_decode_numeric($ent) {
switch ($ent[2]) {
case 'X':
case 'x':
$cp = hexdec($ent[3]);
break;
default:
$cp = intval($ent[3]);
break;
}
return unicode_to_utf8(array($cp));
}
}
if(!class_exists('utf8_entity_decoder')){
class utf8_entity_decoder {
var $table;
function utf8_entity_decoder() {
$table = get_html_translation_table(HTML_ENTITIES);
$table = array_flip($table);
$this->table = array_map(array(&$this,'makeutf8'), $table);
}
function makeutf8($c) {
return unicode_to_utf8(array(ord($c)));
}
function decode($ent) {
if ($ent[1] == '#') {
return utf8_decode_numeric($ent);
} elseif (array_key_exists($ent[0],$this->table)) {
return $this->table[$ent[0]];
} else {
return $ent[0];
}
}
}
}
if(!function_exists('utf8_to_unicode')){
/**
* Takes an UTF-8 string and returns an array of ints representing the
* Unicode characters. Astral planes are supported ie. the ints in the
* output can be > 0xFFFF. Occurrances of the BOM are ignored. Surrogates
* are not allowed.
*
* If $strict is set to true the function returns false if the input
* string isn't a valid UTF-8 octet sequence and raises a PHP error at
* level E_USER_WARNING
*
* Note: this function has been modified slightly in this library to
* trigger errors on encountering bad bytes
*
* @author <hsivonen@iki.fi>
* @author Harry Fuecks <hfuecks@gmail.com>
* @param string UTF-8 encoded string
* @param boolean Check for invalid sequences?
* @return mixed array of unicode code points or false if UTF-8 invalid
* @see unicode_to_utf8
* @link http://hsivonen.iki.fi/php-utf8/
* @link http://sourceforge.net/projects/phputf8/
*/
function utf8_to_unicode($str,$strict=false) {
$mState = 0; // cached expected number of octets after the current octet
// until the beginning of the next UTF8 character sequence
$mUcs4 = 0; // cached Unicode character
$mBytes = 1; // cached expected number of octets in the current sequence
$out = array();
$len = strlen($str);
for($i = 0; $i < $len; $i++) {
$in = ord($str{$i});
if ( $mState == 0) {
// When mState is zero we expect either a US-ASCII character or a
// multi-octet sequence.
if (0 == (0x80 & ($in))) {
// US-ASCII, pass straight through.
$out[] = $in;
$mBytes = 1;
} else if (0xC0 == (0xE0 & ($in))) {
// First octet of 2 octet sequence
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x1F) << 6;
$mState = 1;
$mBytes = 2;
} else if (0xE0 == (0xF0 & ($in))) {
// First octet of 3 octet sequence
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x0F) << 12;
$mState = 2;
$mBytes = 3;
} else if (0xF0 == (0xF8 & ($in))) {
// First octet of 4 octet sequence
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x07) << 18;
$mState = 3;
$mBytes = 4;
} else if (0xF8 == (0xFC & ($in))) {
/* First octet of 5 octet sequence.
*
* This is illegal because the encoded codepoint must be either
* (a) not the shortest form or
* (b) outside the Unicode range of 0-0x10FFFF.
* Rather than trying to resynchronize, we will carry on until the end
* of the sequence and let the later error handling code catch it.
*/
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x03) << 24;
$mState = 4;
$mBytes = 5;
} else if (0xFC == (0xFE & ($in))) {
// First octet of 6 octet sequence, see comments for 5 octet sequence.
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 1) << 30;
$mState = 5;
$mBytes = 6;
} elseif($strict) {
/* Current octet is neither in the US-ASCII range nor a legal first
* octet of a multi-octet sequence.
*/
trigger_error(
'utf8_to_unicode: Illegal sequence identifier '.
'in UTF-8 at byte '.$i,
E_USER_WARNING
);
return false;
}
} else {
// When mState is non-zero, we expect a continuation of the multi-octet
// sequence
if (0x80 == (0xC0 & ($in))) {
// Legal continuation.
$shift = ($mState - 1) * 6;
$tmp = $in;
$tmp = ($tmp & 0x0000003F) << $shift;
$mUcs4 |= $tmp;
/**
* End of the multi-octet sequence. mUcs4 now contains the final
* Unicode codepoint to be output
*/
if (0 == --$mState) {
/*
* Check for illegal sequences and codepoints.
*/
// From Unicode 3.1, non-shortest form is illegal
if (((2 == $mBytes) && ($mUcs4 < 0x0080)) ||
((3 == $mBytes) && ($mUcs4 < 0x0800)) ||
((4 == $mBytes) && ($mUcs4 < 0x10000)) ||
(4 < $mBytes) ||
// From Unicode 3.2, surrogate characters are illegal
(($mUcs4 & 0xFFFFF800) == 0xD800) ||
// Codepoints outside the Unicode range are illegal
($mUcs4 > 0x10FFFF)) {
if($strict){
trigger_error(
'utf8_to_unicode: Illegal sequence or codepoint '.
'in UTF-8 at byte '.$i,
E_USER_WARNING
);
return false;
}
}
if (0xFEFF != $mUcs4) {
// BOM is legal but we don't want to output it
$out[] = $mUcs4;
}
//initialize UTF8 cache
$mState = 0;
$mUcs4 = 0;
$mBytes = 1;
}
} elseif($strict) {
/**
*((0xC0 & (*in) != 0x80) && (mState != 0))
* Incomplete multi-octet sequence.
*/
trigger_error(
'utf8_to_unicode: Incomplete multi-octet '.
' sequence in UTF-8 at byte '.$i,
E_USER_WARNING
);
return false;
}
}
}
return $out;
}
}
if(!function_exists('unicode_to_utf8')){
/**
* Takes an array of ints representing the Unicode characters and returns
* a UTF-8 string. Astral planes are supported ie. the ints in the
* input can be > 0xFFFF. Occurrances of the BOM are ignored. Surrogates
* are not allowed.
*
* If $strict is set to true the function returns false if the input
* array contains ints that represent surrogates or are outside the
* Unicode range and raises a PHP error at level E_USER_WARNING
*
* Note: this function has been modified slightly in this library to use
* output buffering to concatenate the UTF-8 string (faster) as well as
* reference the array by it's keys
*
* @param array of unicode code points representing a string
* @param boolean Check for invalid sequences?
* @return mixed UTF-8 string or false if array contains invalid code points
* @author <hsivonen@iki.fi>
* @author Harry Fuecks <hfuecks@gmail.com>
* @see utf8_to_unicode
* @link http://hsivonen.iki.fi/php-utf8/
* @link http://sourceforge.net/projects/phputf8/
*/
function unicode_to_utf8($arr,$strict=false) {
if (!is_array($arr)) return '';
ob_start();
foreach (array_keys($arr) as $k) {
if ( ($arr[$k] >= 0) && ($arr[$k] <= 0x007f) ) {
# ASCII range (including control chars)
echo chr($arr[$k]);
} else if ($arr[$k] <= 0x07ff) {
# 2 byte sequence
echo chr(0xc0 | ($arr[$k] >> 6));
echo chr(0x80 | ($arr[$k] & 0x003f));
} else if($arr[$k] == 0xFEFF) {
# Byte order mark (skip)
// nop -- zap the BOM
} else if ($arr[$k] >= 0xD800 && $arr[$k] <= 0xDFFF) {
# Test for illegal surrogates
// found a surrogate
if($strict){
trigger_error(
'unicode_to_utf8: Illegal surrogate '.
'at index: '.$k.', value: '.$arr[$k],
E_USER_WARNING
);
return false;
}
} else if ($arr[$k] <= 0xffff) {
# 3 byte sequence
echo chr(0xe0 | ($arr[$k] >> 12));
echo chr(0x80 | (($arr[$k] >> 6) & 0x003f));
echo chr(0x80 | ($arr[$k] & 0x003f));
} else if ($arr[$k] <= 0x10ffff) {
# 4 byte sequence
echo chr(0xf0 | ($arr[$k] >> 18));
echo chr(0x80 | (($arr[$k] >> 12) & 0x3f));
echo chr(0x80 | (($arr[$k] >> 6) & 0x3f));
echo chr(0x80 | ($arr[$k] & 0x3f));
} elseif($strict) {
trigger_error(
'unicode_to_utf8: Codepoint out of Unicode range '.
'at index: '.$k.', value: '.$arr[$k],
E_USER_WARNING
);
// out of range
return false;
}
}
$result = ob_get_contents();
ob_end_clean();
return $result;
}
}
if(!function_exists('utf8_to_utf16be')){
/**
* UTF-8 to UTF-16BE conversion.
*
* Maybe really UCS-2 without mb_string due to utf8_to_unicode limits
*/
function utf8_to_utf16be(&$str, $bom = false) {
$out = $bom ? "\xFE\xFF" : '';
if(UTF8_MBSTRING) return $out.mb_convert_encoding($str,'UTF-16BE','UTF-8');
$uni = utf8_to_unicode($str);
foreach($uni as $cp){
$out .= pack('n',$cp);
}
return $out;
}
}
if(!function_exists('utf16be_to_utf8')){
/**
* UTF-8 to UTF-16BE conversion.
*
* Maybe really UCS-2 without mb_string due to utf8_to_unicode limits
*/
function utf16be_to_utf8(&$str) {
$uni = unpack('n*',$str);
return unicode_to_utf8($uni);
}
}
if(!function_exists('utf8_bad_replace')){
/**
* Replace bad bytes with an alternative character
*
* ASCII character is recommended for replacement char
*
* PCRE Pattern to locate bad bytes in a UTF-8 string
* Comes from W3 FAQ: Multilingual Forms
* Note: modified to include full ASCII range including control chars
*
* @author Harry Fuecks <hfuecks@gmail.com>
* @see http://www.w3.org/International/questions/qa-forms-utf-8
* @param string to search
* @param string to replace bad bytes with (defaults to '?') - use ASCII
* @return string
*/
function utf8_bad_replace($str, $replace = '') {
$UTF8_BAD =
'([\x00-\x7F]'. # ASCII (including control chars)
'|[\xC2-\xDF][\x80-\xBF]'. # non-overlong 2-byte
'|\xE0[\xA0-\xBF][\x80-\xBF]'. # excluding overlongs
'|[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}'. # straight 3-byte
'|\xED[\x80-\x9F][\x80-\xBF]'. # excluding surrogates
'|\xF0[\x90-\xBF][\x80-\xBF]{2}'. # planes 1-3
'|[\xF1-\xF3][\x80-\xBF]{3}'. # planes 4-15
'|\xF4[\x80-\x8F][\x80-\xBF]{2}'. # plane 16
'|(.{1}))'; # invalid byte
ob_start();
while (preg_match('/'.$UTF8_BAD.'/S', $str, $matches)) {
if ( !isset($matches[2])) {
echo $matches[0];
} else {
echo $replace;
}
$str = substr($str,strlen($matches[0]));
}
$result = ob_get_contents();
ob_end_clean();
return $result;
}
}
if(!function_exists('utf8_correctIdx')){
/**
* adjust a byte index into a utf8 string to a utf8 character boundary
*
* @param $str string utf8 character string
* @param $i int byte index into $str
* @param $next bool direction to search for boundary,
* false = up (current character)
* true = down (next character)
*
* @return int byte index into $str now pointing to a utf8 character boundary
*
* @author chris smith <chris@jalakai.co.uk>
*/
function utf8_correctIdx(&$str,$i,$next=false) {
if ($i <= 0) return 0;
$limit = strlen($str);
if ($i>=$limit) return $limit;
if ($next) {
while (($i<$limit) && ((ord($str[$i]) & 0xC0) == 0x80)) $i++;
} else {
while ($i && ((ord($str[$i]) & 0xC0) == 0x80)) $i--;
}
return $i;
}
}
// only needed if no mb_string available
if(!UTF8_MBSTRING){
/**
* UTF-8 Case lookup table
*
* This lookuptable defines the upper case letters to their correspponding
* lower case letter in UTF-8
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
global $UTF8_LOWER_TO_UPPER;
if(empty($UTF8_LOWER_TO_UPPER)) $UTF8_LOWER_TO_UPPER = array(
"ｚ"=>"Ｚ","ｙ"=>"Ｙ","ｘ"=>"Ｘ","ｗ"=>"Ｗ","ｖ"=>"Ｖ","ｕ"=>"Ｕ","ｔ"=>"Ｔ","ｓ"=>"Ｓ","ｒ"=>"Ｒ","ｑ"=>"Ｑ",
"ｐ"=>"Ｐ","ｏ"=>"Ｏ","ｎ"=>"Ｎ","ｍ"=>"Ｍ","ｌ"=>"Ｌ","ｋ"=>"Ｋ","ｊ"=>"Ｊ","ｉ"=>"Ｉ","ｈ"=>"Ｈ","ｇ"=>"Ｇ",
"ｆ"=>"Ｆ","ｅ"=>"Ｅ","ｄ"=>"Ｄ","ｃ"=>"Ｃ","ｂ"=>"Ｂ","ａ"=>"Ａ","ῳ"=>"ῼ","ῥ"=>"Ῥ","ῡ"=>"Ῡ","ῑ"=>"Ῑ",
"ῐ"=>"Ῐ","ῃ"=>"ῌ","ι"=>"Ι","ᾳ"=>"ᾼ","ᾱ"=>"Ᾱ","ᾰ"=>"Ᾰ","ᾧ"=>"ᾯ","ᾦ"=>"ᾮ","ᾥ"=>"ᾭ","ᾤ"=>"ᾬ",
"ᾣ"=>"ᾫ","ᾢ"=>"ᾪ","ᾡ"=>"ᾩ","ᾗ"=>"ᾟ","ᾖ"=>"ᾞ","ᾕ"=>"ᾝ","ᾔ"=>"ᾜ","ᾓ"=>"ᾛ","ᾒ"=>"ᾚ","ᾑ"=>"ᾙ",
"ᾐ"=>"ᾘ","ᾇ"=>"ᾏ","ᾆ"=>"ᾎ","ᾅ"=>"ᾍ","ᾄ"=>"ᾌ","ᾃ"=>"ᾋ","ᾂ"=>"ᾊ","ᾁ"=>"ᾉ","ᾀ"=>"ᾈ","ώ"=>"Ώ",
"ὼ"=>"Ὼ","ύ"=>"Ύ","ὺ"=>"Ὺ","ό"=>"Ό","ὸ"=>"Ὸ","ί"=>"Ί","ὶ"=>"Ὶ","ή"=>"Ή","ὴ"=>"Ὴ","έ"=>"Έ",
"ὲ"=>"Ὲ","ά"=>"Ά","ὰ"=>"Ὰ","ὧ"=>"Ὧ","ὦ"=>"Ὦ","ὥ"=>"Ὥ","ὤ"=>"Ὤ","ὣ"=>"Ὣ","ὢ"=>"Ὢ","ὡ"=>"Ὡ",
"ὗ"=>"Ὗ","ὕ"=>"Ὕ","ὓ"=>"Ὓ","ὑ"=>"Ὑ","ὅ"=>"Ὅ","ὄ"=>"Ὄ","ὃ"=>"Ὃ","ὂ"=>"Ὂ","ὁ"=>"Ὁ","ὀ"=>"Ὀ",
"ἷ"=>"Ἷ","ἶ"=>"Ἶ","ἵ"=>"Ἵ","ἴ"=>"Ἴ","ἳ"=>"Ἳ","ἲ"=>"Ἲ","ἱ"=>"Ἱ","ἰ"=>"Ἰ","ἧ"=>"Ἧ","ἦ"=>"Ἦ",
"ἥ"=>"Ἥ","ἤ"=>"Ἤ","ἣ"=>"Ἣ","ἢ"=>"Ἢ","ἡ"=>"Ἡ","ἕ"=>"Ἕ","ἔ"=>"Ἔ","ἓ"=>"Ἓ","ἒ"=>"Ἒ","ἑ"=>"Ἑ",
"ἐ"=>"Ἐ","ἇ"=>"Ἇ","ἆ"=>"Ἆ","ἅ"=>"Ἅ","ἄ"=>"Ἄ","ἃ"=>"Ἃ","ἂ"=>"Ἂ","ἁ"=>"Ἁ","ἀ"=>"Ἀ","ỹ"=>"Ỹ",
"ỷ"=>"Ỷ","ỵ"=>"Ỵ","ỳ"=>"Ỳ","ự"=>"Ự","ữ"=>"Ữ","ử"=>"Ử","ừ"=>"Ừ","ứ"=>"Ứ","ủ"=>"Ủ","ụ"=>"Ụ",
"ợ"=>"Ợ","ỡ"=>"Ỡ","ở"=>"Ở","ờ"=>"Ờ","ớ"=>"Ớ","ộ"=>"Ộ","ỗ"=>"Ỗ","ổ"=>"Ổ","ồ"=>"Ồ","ố"=>"Ố",
"ỏ"=>"Ỏ","ọ"=>"Ọ","ị"=>"Ị","ỉ"=>"Ỉ","ệ"=>"Ệ","ễ"=>"Ễ","ể"=>"Ể","ề"=>"Ề","ế"=>"Ế","ẽ"=>"Ẽ",
"ẻ"=>"Ẻ","ẹ"=>"Ẹ","ặ"=>"Ặ","ẵ"=>"Ẵ","ẳ"=>"Ẳ","ằ"=>"Ằ","ắ"=>"Ắ","ậ"=>"Ậ","ẫ"=>"Ẫ","ẩ"=>"Ẩ",
"ầ"=>"Ầ","ấ"=>"Ấ","ả"=>"Ả","ạ"=>"Ạ","ẛ"=>"Ṡ","ẕ"=>"Ẕ","ẓ"=>"Ẓ","ẑ"=>"Ẑ","ẏ"=>"Ẏ","ẍ"=>"Ẍ",
"ẋ"=>"Ẋ","ẉ"=>"Ẉ","ẇ"=>"Ẇ","ẅ"=>"Ẅ","ẃ"=>"Ẃ","ẁ"=>"Ẁ","ṿ"=>"Ṿ","ṽ"=>"Ṽ","ṻ"=>"Ṻ","ṹ"=>"Ṹ",
"ṷ"=>"Ṷ","ṵ"=>"Ṵ","ṳ"=>"Ṳ","ṱ"=>"Ṱ","ṯ"=>"Ṯ","ṭ"=>"Ṭ","ṫ"=>"Ṫ","ṩ"=>"Ṩ","ṧ"=>"Ṧ","ṥ"=>"Ṥ",
"ṣ"=>"Ṣ","ṡ"=>"Ṡ","ṟ"=>"Ṟ","ṝ"=>"Ṝ","ṛ"=>"Ṛ","ṙ"=>"Ṙ","ṗ"=>"Ṗ","ṕ"=>"Ṕ","ṓ"=>"Ṓ","ṑ"=>"Ṑ",
"ṏ"=>"Ṏ","ṍ"=>"Ṍ","ṋ"=>"Ṋ","ṉ"=>"Ṉ","ṇ"=>"Ṇ","ṅ"=>"Ṅ","ṃ"=>"Ṃ","ṁ"=>"Ṁ","ḿ"=>"Ḿ","ḽ"=>"Ḽ",
"ḻ"=>"Ḻ","ḹ"=>"Ḹ","ḷ"=>"Ḷ","ḵ"=>"Ḵ","ḳ"=>"Ḳ","ḱ"=>"Ḱ","ḯ"=>"Ḯ","ḭ"=>"Ḭ","ḫ"=>"Ḫ","ḩ"=>"Ḩ",
"ḧ"=>"Ḧ","ḥ"=>"Ḥ","ḣ"=>"Ḣ","ḡ"=>"Ḡ","ḟ"=>"Ḟ","ḝ"=>"Ḝ","ḛ"=>"Ḛ","ḙ"=>"Ḙ","ḗ"=>"Ḗ","ḕ"=>"Ḕ",
"ḓ"=>"Ḓ","ḑ"=>"Ḑ","ḏ"=>"Ḏ","ḍ"=>"Ḍ","ḋ"=>"Ḋ","ḉ"=>"Ḉ","ḇ"=>"Ḇ","ḅ"=>"Ḅ","ḃ"=>"Ḃ","ḁ"=>"Ḁ",
"ֆ"=>"Ֆ","օ"=>"Օ","ք"=>"Ք","փ"=>"Փ","ւ"=>"Ւ","ց"=>"Ց","ր"=>"Ր","տ"=>"Տ","վ"=>"Վ","ս"=>"Ս",
"ռ"=>"Ռ","ջ"=>"Ջ","պ"=>"Պ","չ"=>"Չ","ո"=>"Ո","շ"=>"Շ","ն"=>"Ն","յ"=>"Յ","մ"=>"Մ","ճ"=>"Ճ",
"ղ"=>"Ղ","ձ"=>"Ձ","հ"=>"Հ","կ"=>"Կ","ծ"=>"Ծ","խ"=>"Խ","լ"=>"Լ","ի"=>"Ի","ժ"=>"Ժ","թ"=>"Թ",
"ը"=>"Ը","է"=>"Է","զ"=>"Զ","ե"=>"Ե","դ"=>"Դ","գ"=>"Գ","բ"=>"Բ","ա"=>"Ա","ԏ"=>"Ԏ","ԍ"=>"Ԍ",
"ԋ"=>"Ԋ","ԉ"=>"Ԉ","ԇ"=>"Ԇ","ԅ"=>"Ԅ","ԃ"=>"Ԃ","ԁ"=>"Ԁ","ӹ"=>"Ӹ","ӵ"=>"Ӵ","ӳ"=>"Ӳ","ӱ"=>"Ӱ",
"ӯ"=>"Ӯ","ӭ"=>"Ӭ","ӫ"=>"Ӫ","ө"=>"Ө","ӧ"=>"Ӧ","ӥ"=>"Ӥ","ӣ"=>"Ӣ","ӡ"=>"Ӡ","ӟ"=>"Ӟ","ӝ"=>"Ӝ",
"ӛ"=>"Ӛ","ә"=>"Ә","ӗ"=>"Ӗ","ӕ"=>"Ӕ","ӓ"=>"Ӓ","ӑ"=>"Ӑ","ӎ"=>"Ӎ","ӌ"=>"Ӌ","ӊ"=>"Ӊ","ӈ"=>"Ӈ",
"ӆ"=>"Ӆ","ӄ"=>"Ӄ","ӂ"=>"Ӂ","ҿ"=>"Ҿ","ҽ"=>"Ҽ","һ"=>"Һ","ҹ"=>"Ҹ","ҷ"=>"Ҷ","ҵ"=>"Ҵ","ҳ"=>"Ҳ",
"ұ"=>"Ұ","ү"=>"Ү","ҭ"=>"Ҭ","ҫ"=>"Ҫ","ҩ"=>"Ҩ","ҧ"=>"Ҧ","ҥ"=>"Ҥ","ң"=>"Ң","ҡ"=>"Ҡ","ҟ"=>"Ҟ",
"ҝ"=>"Ҝ","қ"=>"Қ","ҙ"=>"Ҙ","җ"=>"Җ","ҕ"=>"Ҕ","ғ"=>"Ғ","ґ"=>"Ґ","ҏ"=>"Ҏ","ҍ"=>"Ҍ","ҋ"=>"Ҋ",
"ҁ"=>"Ҁ","ѿ"=>"Ѿ","ѽ"=>"Ѽ","ѻ"=>"Ѻ","ѹ"=>"Ѹ","ѷ"=>"Ѷ","ѵ"=>"Ѵ","ѳ"=>"Ѳ","ѱ"=>"Ѱ","ѯ"=>"Ѯ",
"ѭ"=>"Ѭ","ѫ"=>"Ѫ","ѩ"=>"Ѩ","ѧ"=>"Ѧ","ѥ"=>"Ѥ","ѣ"=>"Ѣ","ѡ"=>"Ѡ","џ"=>"Џ","ў"=>"Ў","ѝ"=>"Ѝ",
"ќ"=>"Ќ","ћ"=>"Ћ","њ"=>"Њ","љ"=>"Љ","ј"=>"Ј","ї"=>"Ї","і"=>"І","ѕ"=>"Ѕ","є"=>"Є","ѓ"=>"Ѓ",
"ђ"=>"Ђ","ё"=>"Ё","ѐ"=>"Ѐ","я"=>"Я","ю"=>"Ю","э"=>"Э","ь"=>"Ь","ы"=>"Ы","ъ"=>"Ъ","щ"=>"Щ",
"ш"=>"Ш","ч"=>"Ч","ц"=>"Ц","х"=>"Х","ф"=>"Ф","у"=>"У","т"=>"Т","с"=>"С","р"=>"Р","п"=>"П",
"о"=>"О","н"=>"Н","м"=>"М","л"=>"Л","к"=>"К","й"=>"Й","и"=>"И","з"=>"З","ж"=>"Ж","е"=>"Е",
"д"=>"Д","г"=>"Г","в"=>"В","б"=>"Б","а"=>"А","ϵ"=>"Ε","ϲ"=>"Σ","ϱ"=>"Ρ","ϰ"=>"Κ","ϯ"=>"Ϯ",
"ϭ"=>"Ϭ","ϫ"=>"Ϫ","ϩ"=>"Ϩ","ϧ"=>"Ϧ","ϥ"=>"Ϥ","ϣ"=>"Ϣ","ϡ"=>"Ϡ","ϟ"=>"Ϟ","ϝ"=>"Ϝ","ϛ"=>"Ϛ",
"ϙ"=>"Ϙ","ϖ"=>"Π","ϕ"=>"Φ","ϑ"=>"Θ","ϐ"=>"Β","ώ"=>"Ώ","ύ"=>"Ύ","ό"=>"Ό","ϋ"=>"Ϋ","ϊ"=>"Ϊ",
"ω"=>"Ω","ψ"=>"Ψ","χ"=>"Χ","φ"=>"Φ","υ"=>"Υ","τ"=>"Τ","σ"=>"Σ","ς"=>"Σ","ρ"=>"Ρ","π"=>"Π",
"ο"=>"Ο","ξ"=>"Ξ","ν"=>"Ν","μ"=>"Μ","λ"=>"Λ","κ"=>"Κ","ι"=>"Ι","θ"=>"Θ","η"=>"Η","ζ"=>"Ζ",
"ε"=>"Ε","δ"=>"Δ","γ"=>"Γ","β"=>"Β","α"=>"Α","ί"=>"Ί","ή"=>"Ή","έ"=>"Έ","ά"=>"Ά","ʒ"=>"Ʒ",
"ʋ"=>"Ʋ","ʊ"=>"Ʊ","ʈ"=>"Ʈ","ʃ"=>"Ʃ","ʀ"=>"Ʀ","ɵ"=>"Ɵ","ɲ"=>"Ɲ","ɯ"=>"Ɯ","ɩ"=>"Ɩ","ɨ"=>"Ɨ",
"ɣ"=>"Ɣ","ɛ"=>"Ɛ","ə"=>"Ə","ɗ"=>"Ɗ","ɖ"=>"Ɖ","ɔ"=>"Ɔ","ɓ"=>"Ɓ","ȳ"=>"Ȳ","ȱ"=>"Ȱ","ȯ"=>"Ȯ",
"ȭ"=>"Ȭ","ȫ"=>"Ȫ","ȩ"=>"Ȩ","ȧ"=>"Ȧ","ȥ"=>"Ȥ","ȣ"=>"Ȣ","ȟ"=>"Ȟ","ȝ"=>"Ȝ","ț"=>"Ț","ș"=>"Ș",
"ȗ"=>"Ȗ","ȕ"=>"Ȕ","ȓ"=>"Ȓ","ȑ"=>"Ȑ","ȏ"=>"Ȏ","ȍ"=>"Ȍ","ȋ"=>"Ȋ","ȉ"=>"Ȉ","ȇ"=>"Ȇ","ȅ"=>"Ȅ",
"ȃ"=>"Ȃ","ȁ"=>"Ȁ","ǿ"=>"Ǿ","ǽ"=>"Ǽ","ǻ"=>"Ǻ","ǹ"=>"Ǹ","ǵ"=>"Ǵ","dz"=>"Dz","ǯ"=>"Ǯ","ǭ"=>"Ǭ",
"ǫ"=>"Ǫ","ǩ"=>"Ǩ","ǧ"=>"Ǧ","ǥ"=>"Ǥ","ǣ"=>"Ǣ","ǡ"=>"Ǡ","ǟ"=>"Ǟ","ǝ"=>"Ǝ","ǜ"=>"Ǜ","ǚ"=>"Ǚ",
"ǘ"=>"Ǘ","ǖ"=>"Ǖ","ǔ"=>"Ǔ","ǒ"=>"Ǒ","ǐ"=>"Ǐ","ǎ"=>"Ǎ","nj"=>"Nj","lj"=>"Lj","dž"=>"Dž","ƿ"=>"Ƿ",
"ƽ"=>"Ƽ","ƹ"=>"Ƹ","ƶ"=>"Ƶ","ƴ"=>"Ƴ","ư"=>"Ư","ƭ"=>"Ƭ","ƨ"=>"Ƨ","ƥ"=>"Ƥ","ƣ"=>"Ƣ","ơ"=>"Ơ",
"ƞ"=>"Ƞ","ƙ"=>"Ƙ","ƕ"=>"Ƕ","ƒ"=>"Ƒ","ƌ"=>"Ƌ","ƈ"=>"Ƈ","ƅ"=>"Ƅ","ƃ"=>"Ƃ","ſ"=>"S","ž"=>"Ž",
"ż"=>"Ż","ź"=>"Ź","ŷ"=>"Ŷ","ŵ"=>"Ŵ","ų"=>"Ų","ű"=>"Ű","ů"=>"Ů","ŭ"=>"Ŭ","ū"=>"Ū","ũ"=>"Ũ",
"ŧ"=>"Ŧ","ť"=>"Ť","ţ"=>"Ţ","š"=>"Š","ş"=>"Ş","ŝ"=>"Ŝ","ś"=>"Ś","ř"=>"Ř","ŗ"=>"Ŗ","ŕ"=>"Ŕ",
"œ"=>"Œ","ő"=>"Ő","ŏ"=>"Ŏ","ō"=>"Ō","ŋ"=>"Ŋ","ň"=>"Ň","ņ"=>"Ņ","ń"=>"Ń","ł"=>"Ł","ŀ"=>"Ŀ",
"ľ"=>"Ľ","ļ"=>"Ļ","ĺ"=>"Ĺ","ķ"=>"Ķ","ĵ"=>"Ĵ","ij"=>"IJ","ı"=>"I","į"=>"Į","ĭ"=>"Ĭ","ī"=>"Ī",
"ĩ"=>"Ĩ","ħ"=>"Ħ","ĥ"=>"Ĥ","ģ"=>"Ģ","ġ"=>"Ġ","ğ"=>"Ğ","ĝ"=>"Ĝ","ě"=>"Ě","ę"=>"Ę","ė"=>"Ė",
"ĕ"=>"Ĕ","ē"=>"Ē","đ"=>"Đ","ď"=>"Ď","č"=>"Č","ċ"=>"Ċ","ĉ"=>"Ĉ","ć"=>"Ć","ą"=>"Ą","ă"=>"Ă",
"ā"=>"Ā","ÿ"=>"Ÿ","þ"=>"Þ","ý"=>"Ý","ü"=>"Ü","û"=>"Û","ú"=>"Ú","ù"=>"Ù","ø"=>"Ø","ö"=>"Ö",
"õ"=>"Õ","ô"=>"Ô","ó"=>"Ó","ò"=>"Ò","ñ"=>"Ñ","ð"=>"Ð","ï"=>"Ï","î"=>"Î","í"=>"Í","ì"=>"Ì",
"ë"=>"Ë","ê"=>"Ê","é"=>"É","è"=>"È","ç"=>"Ç","æ"=>"Æ","å"=>"Å","ä"=>"Ä","ã"=>"Ã","â"=>"Â",
"á"=>"Á","à"=>"À","µ"=>"Μ","z"=>"Z","y"=>"Y","x"=>"X","w"=>"W","v"=>"V","u"=>"U","t"=>"T",
"s"=>"S","r"=>"R","q"=>"Q","p"=>"P","o"=>"O","n"=>"N","m"=>"M","l"=>"L","k"=>"K","j"=>"J",
"i"=>"I","h"=>"H","g"=>"G","f"=>"F","e"=>"E","d"=>"D","c"=>"C","b"=>"B","a"=>"A"
);
/**