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+<?php defined('SYSPATH') OR die('No direct access allowed.');
+/**
+ * A port of phputf8 to a unified file/class.
+ *
+ * This file is licensed differently from the rest of Kohana. As a port of
+ * phputf8, which is LGPL software, this file is released under the LGPL.
+ *
+ * PCRE needs to be compiled with UTF-8 support (--enable-utf8).
+ * Support for Unicode properties is highly recommended (--enable-unicode-properties).
+ * @see http://php.net/manual/reference.pcre.pattern.modifiers.php
+ *
+ * string functions.
+ * @see http://php.net/mbstring
+ *
+ * $Id$
+ *
+ * @package Core
+ * @author Kohana Team
+ * @copyright (c) 2007-2009 Kohana Team
+ * @copyright (c) 2005 Harry Fuecks
+ * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt
+ */
+
+class utf8_Core {
+
+ /**
+ * Replaces text within a portion of a UTF-8 string.
+ * @see http://php.net/substr_replace
+ *
+ * @author Harry Fuecks <hfuecks@gmail.com>
+ *
+ * @param string input string
+ * @param string replacement string
+ * @param integer offset
+ * @return string
+ */
+ public static function substr_replace($str, $replacement, $offset, $length = NULL)
+ {
+ if (text::is_ascii($str))
+ return ($length === NULL) ? substr_replace($str, $replacement, $offset) : substr_replace($str, $replacement, $offset, $length);
+
+ $length = ($length === NULL) ? mb_strlen($str) : (int) $length;
+ preg_match_all('/./us', $str, $str_array);
+ preg_match_all('/./us', $replacement, $replacement_array);
+
+ array_splice($str_array[0], $offset, $length, $replacement_array[0]);
+ return implode('', $str_array[0]);
+ }
+
+ /**
+ * Makes a UTF-8 string's first character uppercase.
+ * @see http://php.net/ucfirst
+ *
+ * @author Harry Fuecks <hfuecks@gmail.com>
+ *
+ * @param string mixed case string
+ * @return string
+ */
+ public static function ucfirst($str)
+ {
+ if (text::is_ascii($str))
+ return ucfirst($str);
+
+ preg_match('/^(.?)(.*)$/us', $str, $matches);
+ return mb_strtoupper($matches[1]).$matches[2];
+ }
+
+ /**
+ * Case-insensitive UTF-8 string comparison.
+ * @see http://php.net/strcasecmp
+ *
+ * @author Harry Fuecks <hfuecks@gmail.com>
+ *
+ * @param string string to compare
+ * @param string string to compare
+ * @return integer less than 0 if str1 is less than str2
+ * @return integer greater than 0 if str1 is greater than str2
+ * @return integer 0 if they are equal
+ */
+ public static function strcasecmp($str1, $str2)
+ {
+ if (text::is_ascii($str1) AND text::is_ascii($str2))
+ return strcasecmp($str1, $str2);
+
+ $str1 = mb_strtolower($str1);
+ $str2 = mb_strtolower($str2);
+ return strcmp($str1, $str2);
+ }
+
+ /**
+ * Returns a string or an array with all occurrences of search in subject (ignoring case).
+ * replaced with the given replace value.
+ * @see http://php.net/str_ireplace
+ *
+ * @note It's not fast and gets slower if $search and/or $replace are arrays.
+ * @author Harry Fuecks <hfuecks@gmail.com
+ *
+ * @param string|array text to replace
+ * @param string|array replacement text
+ * @param string|array subject text
+ * @param integer number of matched and replaced needles will be returned via this parameter which is passed by reference
+ * @return string if the input was a string
+ * @return array if the input was an array
+ */
+ public static function str_ireplace($search, $replace, $str, & $count = NULL)
+ {
+ if (text::is_ascii($search) AND text::is_ascii($replace) AND text::is_ascii($str))
+ return str_ireplace($search, $replace, $str, $count);
+
+ if (is_array($str))
+ {
+ foreach ($str as $key => $val)
+ {
+ $str[$key] = utf8::str_ireplace($search, $replace, $val, $count);
+ }
+ return $str;
+ }
+
+ if (is_array($search))
+ {
+ $keys = array_keys($search);
+
+ foreach ($keys as $k)
+ {
+ if (is_array($replace))
+ {
+ if (array_key_exists($k, $replace))
+ {
+ $str = utf8::str_ireplace($search[$k], $replace[$k], $str, $count);
+ }
+ else
+ {
+ $str = utf8::str_ireplace($search[$k], '', $str, $count);
+ }
+ }
+ else
+ {
+ $str = utf8::str_ireplace($search[$k], $replace, $str, $count);
+ }
+ }
+ return $str;
+ }
+
+ $search = mb_strtolower($search);
+ $str_lower = mb_strtolower($str);
+
+ $total_matched_strlen = 0;
+ $i = 0;
+
+ while (preg_match('/(.*?)'.preg_quote($search, '/').'/s', $str_lower, $matches))
+ {
+ $matched_strlen = strlen($matches[0]);
+ $str_lower = substr($str_lower, $matched_strlen);
+
+ $offset = $total_matched_strlen + strlen($matches[1]) + ($i * (strlen($replace) - 1));
+ $str = substr_replace($str, $replace, $offset, strlen($search));
+
+ $total_matched_strlen += $matched_strlen;
+ $i++;
+ }
+
+ $count += $i;
+ return $str;
+ }
+
+ /**
+ * Case-insenstive UTF-8 version of strstr. Returns all of input string
+ * from the first occurrence of needle to the end.
+ * @see http://php.net/stristr
+ *
+ * @author Harry Fuecks <hfuecks@gmail.com>
+ *
+ * @param string input string
+ * @param string needle
+ * @return string matched substring if found
+ * @return boolean FALSE if the substring was not found
+ */
+ public static function stristr($str, $search)
+ {
+ if (text::is_ascii($str) AND text::is_ascii($search))
+ return stristr($str, $search);
+
+ if ($search == '')
+ return $str;
+
+ $str_lower = mb_strtolower($str);
+ $search_lower = mb_strtolower($search);
+
+ preg_match('/^(.*?)'.preg_quote($search, '/').'/s', $str_lower, $matches);
+
+ if (isset($matches[1]))
+ return substr($str, strlen($matches[1]));
+
+ return FALSE;
+ }
+
+ /**
+ * Finds the length of the initial segment matching mask.
+ * @see http://php.net/strspn
+ *
+ * @author Harry Fuecks <hfuecks@gmail.com>
+ *
+ * @param string input string
+ * @param string mask for search
+ * @param integer start position of the string to examine
+ * @param integer length of the string to examine
+ * @return integer length of the initial segment that contains characters in the mask
+ */
+ public static function strspn($str, $mask, $offset = NULL, $length = NULL)
+ {
+ if ($str == '' OR $mask == '')
+ return 0;
+
+ if (text::is_ascii($str) AND text::is_ascii($mask))
+ return ($offset === NULL) ? strspn($str, $mask) : (($length === NULL) ? strspn($str, $mask, $offset) : strspn($str, $mask, $offset, $length));
+
+ if ($offset !== NULL OR $length !== NULL)
+ {
+ $str = mb_substr($str, $offset, $length);
+ }
+
+ // Escape these characters: - [ ] . : \ ^ /
+ // The . and : are escaped to prevent possible warnings about POSIX regex elements
+ $mask = preg_replace('#[-[\].:\\\\^/]#', '\\\\$0', $mask);
+ preg_match('/^[^'.$mask.']+/u', $str, $matches);
+
+ return isset($matches[0]) ? mb_strlen($matches[0]) : 0;
+ }
+
+ /**
+ * Finds the length of the initial segment not matching mask.
+ * @see http://php.net/strcspn
+ *
+ * @author Harry Fuecks <hfuecks@gmail.com>
+ *
+ * @param string input string
+ * @param string mask for search
+ * @param integer start position of the string to examine
+ * @param integer length of the string to examine
+ * @return integer length of the initial segment that contains characters not in the mask
+ */
+ public static function strcspn($str, $mask, $offset = NULL, $length = NULL)
+ {
+ if ($str == '' OR $mask == '')
+ return 0;
+
+ if (text::is_ascii($str) AND text::is_ascii($mask))
+ return ($offset === NULL) ? strcspn($str, $mask) : (($length === NULL) ? strcspn($str, $mask, $offset) : strcspn($str, $mask, $offset, $length));
+
+ if ($str !== NULL OR $length !== NULL)
+ {
+ $str = mb_substr($str, $offset, $length);
+ }
+
+ // Escape these characters: - [ ] . : \ ^ /
+ // The . and : are escaped to prevent possible warnings about POSIX regex elements
+ $mask = preg_replace('#[-[\].:\\\\^/]#', '\\\\$0', $mask);
+ preg_match('/^[^'.$mask.']+/u', $str, $matches);
+
+ return isset($matches[0]) ? mb_strlen($matches[0]) : 0;
+ }
+
+ /**
+ * Pads a UTF-8 string to a certain length with another string.
+ * @see http://php.net/str_pad
+ *
+ * @author Harry Fuecks <hfuecks@gmail.com>
+ *
+ * @param string input string
+ * @param integer desired string length after padding
+ * @param string string to use as padding
+ * @param string padding type: STR_PAD_RIGHT, STR_PAD_LEFT, or STR_PAD_BOTH
+ * @return string
+ */
+ public static function str_pad($str, $final_str_length, $pad_str = ' ', $pad_type = STR_PAD_RIGHT)
+ {
+ if (text::is_ascii($str) AND text::is_ascii($pad_str))
+ {
+ return str_pad($str, $final_str_length, $pad_str, $pad_type);
+ }
+
+ $str_length = mb_strlen($str);
+
+ if ($final_str_length <= 0 OR $final_str_length <= $str_length)
+ {
+ return $str;
+ }
+
+ $pad_str_length = mb_strlen($pad_str);
+ $pad_length = $final_str_length - $str_length;
+
+ if ($pad_type == STR_PAD_RIGHT)
+ {
+ $repeat = ceil($pad_length / $pad_str_length);
+ return mb_substr($str.str_repeat($pad_str, $repeat), 0, $final_str_length);
+ }
+
+ if ($pad_type == STR_PAD_LEFT)
+ {
+ $repeat = ceil($pad_length / $pad_str_length);
+ return mb_substr(str_repeat($pad_str, $repeat), 0, floor($pad_length)).$str;
+ }
+
+ if ($pad_type == STR_PAD_BOTH)
+ {
+ $pad_length /= 2;
+ $pad_length_left = floor($pad_length);
+ $pad_length_right = ceil($pad_length);
+ $repeat_left = ceil($pad_length_left / $pad_str_length);
+ $repeat_right = ceil($pad_length_right / $pad_str_length);
+
+ $pad_left = mb_substr(str_repeat($pad_str, $repeat_left), 0, $pad_length_left);
+ $pad_right = mb_substr(str_repeat($pad_str, $repeat_right), 0, $pad_length_left);
+ return $pad_left.$str.$pad_right;
+ }
+
+ trigger_error('utf8::str_pad: Unknown padding type (' . $pad_type . ')', E_USER_ERROR);
+ }
+
+ /**
+ * Converts a UTF-8 string to an array.
+ * @see http://php.net/str_split
+ *
+ * @author Harry Fuecks <hfuecks@gmail.com>
+ *
+ * @param string input string
+ * @param integer maximum length of each chunk
+ * @return array
+ */
+ public static function str_split($str, $split_length = 1)
+ {
+ $split_length = (int) $split_length;
+
+ if (text::is_ascii($str))
+ {
+ return str_split($str, $split_length);
+ }
+
+ if ($split_length < 1)
+ {
+ return FALSE;
+ }
+
+ if (mb_strlen($str) <= $split_length)
+ {
+ return array($str);
+ }
+
+ preg_match_all('/.{'.$split_length.'}|[^\x00]{1,'.$split_length.'}$/us', $str, $matches);
+
+ return $matches[0];
+ }
+
+ /**
+ * Reverses a UTF-8 string.
+ * @see http://php.net/strrev
+ *
+ * @author Harry Fuecks <hfuecks@gmail.com>
+ *
+ * @param string string to be reversed
+ * @return string
+ */
+ public static function strrev($str)
+ {
+ if (text::is_ascii($str))
+ return strrev($str);
+
+ preg_match_all('/./us', $str, $matches);
+ return implode('', array_reverse($matches[0]));
+ }
+
+ /**
+ * Strips whitespace (or other UTF-8 characters) from the beginning and
+ * end of a string.
+ * @see http://php.net/trim
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ *
+ * @param string input string
+ * @param string string of characters to remove
+ * @return string
+ */
+ public static function trim($str, $charlist = NULL)
+ {
+ if ($charlist === NULL)
+ return trim($str);
+
+ return utf8::ltrim(utf8::rtrim($str, $charlist), $charlist);
+ }
+
+ /**
+ * Strips whitespace (or other UTF-8 characters) from the beginning of a string.
+ * @see http://php.net/ltrim
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ *
+ * @param string input string
+ * @param string string of characters to remove
+ * @return string
+ */
+ public static function ltrim($str, $charlist = NULL)
+ {
+ if ($charlist === NULL)
+ return ltrim($str);
+
+ if (text::is_ascii($charlist))
+ return ltrim($str, $charlist);
+
+ $charlist = preg_replace('#[-\[\]:\\\\^/]#', '\\\\$0', $charlist);
+
+ return preg_replace('/^['.$charlist.']+/u', '', $str);
+ }
+
+ /**
+ * Strips whitespace (or other UTF-8 characters) from the end of a string.
+ * @see http://php.net/rtrim
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ *
+ * @param string input string
+ * @param string string of characters to remove
+ * @return string
+ */
+ public static function rtrim($str, $charlist = NULL)
+ {
+ if ($charlist === NULL)
+ return rtrim($str);
+
+ if (text::is_ascii($charlist))
+ return rtrim($str, $charlist);
+
+ $charlist = preg_replace('#[-\[\]:\\\\^/]#', '\\\\$0', $charlist);
+
+ return preg_replace('/['.$charlist.']++$/uD', '', $str);
+ }
+
+ /**
+ * Returns the unicode ordinal for a character.
+ * @see http://php.net/ord
+ *
+ * @author Harry Fuecks <hfuecks@gmail.com>
+ *
+ * @param string UTF-8 encoded character
+ * @return integer
+ */
+ public static function ord($chr)
+ {
+ $ord0 = ord($chr);
+
+ if ($ord0 >= 0 AND $ord0 <= 127)
+ {
+ return $ord0;
+ }
+
+ if ( ! isset($chr[1]))
+ {
+ trigger_error('Short sequence - at least 2 bytes expected, only 1 seen', E_USER_WARNING);
+ return FALSE;
+ }
+
+ $ord1 = ord($chr[1]);
+
+ if ($ord0 >= 192 AND $ord0 <= 223)
+ {
+ return ($ord0 - 192) * 64 + ($ord1 - 128);
+ }
+
+ if ( ! isset($chr[2]))
+ {
+ trigger_error('Short sequence - at least 3 bytes expected, only 2 seen', E_USER_WARNING);
+ return FALSE;
+ }
+
+ $ord2 = ord($chr[2]);
+
+ if ($ord0 >= 224 AND $ord0 <= 239)
+ {
+ return ($ord0 - 224) * 4096 + ($ord1 - 128) * 64 + ($ord2 - 128);
+ }
+
+ if ( ! isset($chr[3]))
+ {
+ trigger_error('Short sequence - at least 4 bytes expected, only 3 seen', E_USER_WARNING);
+ return FALSE;
+ }
+
+ $ord3 = ord($chr[3]);
+
+ if ($ord0 >= 240 AND $ord0 <= 247)
+ {
+ return ($ord0 - 240) * 262144 + ($ord1 - 128) * 4096 + ($ord2-128) * 64 + ($ord3 - 128);
+ }
+
+ if ( ! isset($chr[4]))
+ {
+ trigger_error('Short sequence - at least 5 bytes expected, only 4 seen', E_USER_WARNING);
+ return FALSE;
+ }
+
+ $ord4 = ord($chr[4]);
+
+ if ($ord0 >= 248 AND $ord0 <= 251)
+ {
+ return ($ord0 - 248) * 16777216 + ($ord1-128) * 262144 + ($ord2 - 128) * 4096 + ($ord3 - 128) * 64 + ($ord4 - 128);
+ }
+
+ if ( ! isset($chr[5]))
+ {
+ trigger_error('Short sequence - at least 6 bytes expected, only 5 seen', E_USER_WARNING);
+ return FALSE;
+ }
+
+ if ($ord0 >= 252 AND $ord0 <= 253)
+ {
+ return ($ord0 - 252) * 1073741824 + ($ord1 - 128) * 16777216 + ($ord2 - 128) * 262144 + ($ord3 - 128) * 4096 + ($ord4 - 128) * 64 + (ord($chr[5]) - 128);
+ }
+
+ if ($ord0 >= 254 AND $ord0 <= 255)
+ {
+ trigger_error('Invalid UTF-8 with surrogate ordinal '.$ord0, E_USER_WARNING);
+ return FALSE;
+ }
+ }
+
+ /**
+ * Takes an UTF-8 string and returns an array of ints representing the Unicode characters.
+ * Astral planes are supported i.e. the ints in the output can be > 0xFFFF.
+ * Occurrances of the BOM are ignored. Surrogates are not allowed.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ * The Initial Developer of the Original Code is Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998 the Initial Developer.
+ * Ported to PHP by Henri Sivonen <hsivonen@iki.fi>, see http://hsivonen.iki.fi/php-utf8/.
+ * Slight modifications to fit with phputf8 library by Harry Fuecks <hfuecks@gmail.com>.
+ *
+ * @param string UTF-8 encoded string
+ * @return array unicode code points
+ * @return boolean FALSE if the string is invalid
+ */
+ public static function to_unicode($str)
+ {
+ $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;
+ }
+ elseif (0xC0 == (0xE0 & $in))
+ {
+ // First octet of 2 octet sequence
+ $mUcs4 = $in;
+ $mUcs4 = ($mUcs4 & 0x1F) << 6;
+ $mState = 1;
+ $mBytes = 2;
+ }
+ elseif (0xE0 == (0xF0 & $in))
+ {
+ // First octet of 3 octet sequence
+ $mUcs4 = $in;
+ $mUcs4 = ($mUcs4 & 0x0F) << 12;
+ $mState = 2;
+ $mBytes = 3;
+ }
+ elseif (0xF0 == (0xF8 & $in))
+ {
+ // First octet of 4 octet sequence
+ $mUcs4 = $in;
+ $mUcs4 = ($mUcs4 & 0x07) << 18;
+ $mState = 3;
+ $mBytes = 4;
+ }
+ elseif (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;
+ }
+ elseif (0xFC == (0xFE & $in))
+ {
+ // First octet of 6 octet sequence, see comments for 5 octet sequence.
+ $mUcs4 = $in;
+ $mUcs4 = ($mUcs4 & 1) << 30;
+ $mState = 5;
+ $mBytes = 6;
+ }
+ else
+ {
+ // Current octet is neither in the US-ASCII range nor a legal first octet of a multi-octet sequence.
+ trigger_error('utf8::to_unicode: Illegal sequence identifier in UTF-8 at byte '.$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 == $mBytes) AND ($mUcs4 < 0x0080)) OR
+ ((3 == $mBytes) AND ($mUcs4 < 0x0800)) OR
+ ((4 == $mBytes) AND ($mUcs4 < 0x10000)) OR
+ (4 < $mBytes) OR
+ // From Unicode 3.2, surrogate characters are illegal
+ (($mUcs4 & 0xFFFFF800) == 0xD800) OR
+ // Codepoints outside the Unicode range are illegal
+ ($mUcs4 > 0x10FFFF))
+ {
+ trigger_error('utf8::to_unicode: Illegal sequence or codepoint in UTF-8 at byte '.$i, E_USER_WARNING);
+ return FALSE;
+ }
+
+ if (0xFEFF != $mUcs4)
+ {
+ // BOM is legal but we don't want to output it
+ $out[] = $mUcs4;
+ }
+
+ // Initialize UTF-8 cache
+ $mState = 0;
+ $mUcs4 = 0;
+ $mBytes = 1;
+ }
+ }
+ else
+ {
+ // ((0xC0 & (*in) != 0x80) AND (mState != 0))
+ // Incomplete multi-octet sequence
+ trigger_error('utf8::to_unicode: Incomplete multi-octet sequence in UTF-8 at byte '.$i, E_USER_WARNING);
+ return FALSE;
+ }
+ }
+ }
+
+ return $out;
+ }
+
+ /**
+ * Takes an array of ints representing the Unicode characters and returns a UTF-8 string.
+ * Astral planes are supported i.e. the ints in the input can be > 0xFFFF.
+ * Occurrances of the BOM are ignored. Surrogates are not allowed.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ * The Initial Developer of the Original Code is Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998 the Initial Developer.
+ * Ported to PHP by Henri Sivonen <hsivonen@iki.fi>, see http://hsivonen.iki.fi/php-utf8/.
+ * Slight modifications to fit with phputf8 library by Harry Fuecks <hfuecks@gmail.com>.
+ *
+ * @param array unicode code points representing a string
+ * @return string utf8 string of characters
+ * @return boolean FALSE if a code point cannot be found
+ */
+ public static function from_unicode($arr)
+ {
+ ob_start();
+
+ $keys = array_keys($arr);
+
+ foreach ($keys as $k)
+ {
+ // ASCII range (including control chars)
+ if (($arr[$k] >= 0) AND ($arr[$k] <= 0x007f))
+ {
+ echo chr($arr[$k]);
+ }
+ // 2 byte sequence
+ elseif ($arr[$k] <= 0x07ff)
+ {
+ echo chr(0xc0 | ($arr[$k] >> 6));
+ echo chr(0x80 | ($arr[$k] & 0x003f));
+ }
+ // Byte order mark (skip)
+ elseif ($arr[$k] == 0xFEFF)
+ {
+ // nop -- zap the BOM
+ }
+ // Test for illegal surrogates
+ elseif ($arr[$k] >= 0xD800 AND $arr[$k] <= 0xDFFF)
+ {
+ // Found a surrogate
+ trigger_error('utf8::from_unicode: Illegal surrogate at index: '.$k.', value: '.$arr[$k], E_USER_WARNING);
+ return FALSE;
+ }
+ // 3 byte sequence
+ elseif ($arr[$k] <= 0xffff)
+ {
+ echo chr(0xe0 | ($arr[$k] >> 12));
+ echo chr(0x80 | (($arr[$k] >> 6) & 0x003f));
+ echo chr(0x80 | ($arr[$k] & 0x003f));
+ }
+ // 4 byte sequence
+ elseif ($arr[$k] <= 0x10ffff)
+ {
+ echo chr(0xf0 | ($arr[$k] >> 18));
+ echo chr(0x80 | (($arr[$k] >> 12) & 0x3f));
+ echo chr(0x80 | (($arr[$k] >> 6) & 0x3f));
+ echo chr(0x80 | ($arr[$k] & 0x3f));
+ }
+ // Out of range
+ else
+ {
+ trigger_error('utf8::from_unicode: Codepoint out of Unicode range at index: '.$k.', value: '.$arr[$k], E_USER_WARNING);
+ return FALSE;
+ }
+ }
+
+ $result = ob_get_contents();
+ ob_end_clean();
+ return $result;
+ }
+
+} // End utf8 \ No newline at end of file
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-13 09:12:18 +0000