710 lines
22 KiB
PHP
710 lines
22 KiB
PHP
<?php
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/**
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* JSON (JavaScript Object Notation) is a lightweight data-interchange
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* format. It is easy for humans to read and write. It is easy for machines
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* to parse and generate. It is based on a subset of the JavaScript
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* Programming Language, Standard ECMA-262 3rd Edition - December 1999.
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* This feature can also be found in Python. JSON is a text format that is
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* completely language independent but uses conventions that are familiar
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* to programmers of the C-family of languages, including C, C++, C#, Java,
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* JavaScript, Perl, TCL, and many others. These properties make JSON an
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* ideal data-interchange language.
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*
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* This package provides a simple encoder and decoder for JSON notation. It
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* is intended for use with client-side Javascript applications that make
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* use of HTTPRequest to perform server communication functions - data can
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* be encoded into JSON notation for use in a client-side javascript, or
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* decoded from incoming Javascript requests. JSON format is native to
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* Javascript, and can be directly eval()'ed with no further parsing
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* overhead
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*
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* All strings should be in ASCII or UTF-8 format!
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*
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* LICENSE: Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met: Redistributions of source code must retain the
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* above copyright notice, this list of conditions and the following
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* disclaimer. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* @author Michal Migurski <mike-json@teczno.com>
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* @author Matt Knapp <mdknapp[at]gmail[dot]com>
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* @author Brett Stimmerman <brettstimmerman[at]gmail[dot]com>
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* @copyright 2005 Michal Migurski
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* @license http://www.opensource.org/licenses/bsd-license.php
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* @link http://pear.php.net/pepr/pepr-proposal-show.php?id=198
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*/
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/**
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* CJSON converts PHP data to and from JSON format.
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*
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* @author Michal Migurski <mike-json@teczno.com>
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* @author Matt Knapp <mdknapp[at]gmail[dot]com>
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* @author Brett Stimmerman <brettstimmerman[at]gmail[dot]com>
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* @package system.web.helpers
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* @since 1.0
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*/
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class CJSON
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{
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/**
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* Marker constant for JSON::decode(), used to flag stack state
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*/
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const JSON_SLICE = 1;
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/**
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* Marker constant for JSON::decode(), used to flag stack state
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*/
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const JSON_IN_STR = 2;
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/**
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* Marker constant for JSON::decode(), used to flag stack state
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*/
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const JSON_IN_ARR = 4;
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/**
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* Marker constant for JSON::decode(), used to flag stack state
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*/
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const JSON_IN_OBJ = 8;
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/**
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* Marker constant for JSON::decode(), used to flag stack state
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*/
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const JSON_IN_CMT = 16;
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/**
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* Encodes an arbitrary variable into JSON format
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*
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* @param mixed $var any number, boolean, string, array, or object to be encoded.
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* If var is a string, it will be converted to UTF-8 format first before being encoded.
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* @return string JSON string representation of input var
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*/
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public static function encode($var)
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{
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switch (gettype($var)) {
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case 'boolean':
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return $var ? 'true' : 'false';
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case 'NULL':
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return 'null';
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case 'integer':
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return (int) $var;
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case 'double':
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case 'float':
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return str_replace(',','.',(float)$var); // locale-independent representation
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case 'string':
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if (($enc=strtoupper(Yii::app()->charset))!=='UTF-8')
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$var=iconv($enc, 'UTF-8', $var);
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if(function_exists('json_encode'))
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return json_encode($var);
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// STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT
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$ascii = '';
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$strlen_var = strlen($var);
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/*
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* Iterate over every character in the string,
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* escaping with a slash or encoding to UTF-8 where necessary
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*/
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for ($c = 0; $c < $strlen_var; ++$c) {
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$ord_var_c = ord($var{$c});
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switch (true) {
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case $ord_var_c == 0x08:
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$ascii .= '\b';
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break;
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case $ord_var_c == 0x09:
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$ascii .= '\t';
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break;
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case $ord_var_c == 0x0A:
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$ascii .= '\n';
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break;
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case $ord_var_c == 0x0C:
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$ascii .= '\f';
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break;
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case $ord_var_c == 0x0D:
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$ascii .= '\r';
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break;
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case $ord_var_c == 0x22:
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case $ord_var_c == 0x2F:
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case $ord_var_c == 0x5C:
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// double quote, slash, slosh
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$ascii .= '\\'.$var{$c};
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break;
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case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)):
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// characters U-00000000 - U-0000007F (same as ASCII)
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$ascii .= $var{$c};
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break;
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case (($ord_var_c & 0xE0) == 0xC0):
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// characters U-00000080 - U-000007FF, mask 110XXXXX
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// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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$char = pack('C*', $ord_var_c, ord($var{$c+1}));
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$c+=1;
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$utf16 = self::utf8ToUTF16BE($char);
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$ascii .= sprintf('\u%04s', bin2hex($utf16));
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break;
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case (($ord_var_c & 0xF0) == 0xE0):
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// characters U-00000800 - U-0000FFFF, mask 1110XXXX
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// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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$char = pack('C*', $ord_var_c,
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ord($var{$c+1}),
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ord($var{$c+2}));
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$c+=2;
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$utf16 = self::utf8ToUTF16BE($char);
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$ascii .= sprintf('\u%04s', bin2hex($utf16));
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break;
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case (($ord_var_c & 0xF8) == 0xF0):
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// characters U-00010000 - U-001FFFFF, mask 11110XXX
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// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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$char = pack('C*', $ord_var_c,
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ord($var{$c+1}),
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ord($var{$c+2}),
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ord($var{$c+3}));
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$c+=3;
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$utf16 = self::utf8ToUTF16BE($char);
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$ascii .= sprintf('\u%04s', bin2hex($utf16));
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break;
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case (($ord_var_c & 0xFC) == 0xF8):
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// characters U-00200000 - U-03FFFFFF, mask 111110XX
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// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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$char = pack('C*', $ord_var_c,
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ord($var{$c+1}),
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ord($var{$c+2}),
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ord($var{$c+3}),
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ord($var{$c+4}));
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$c+=4;
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$utf16 = self::utf8ToUTF16BE($char);
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$ascii .= sprintf('\u%04s', bin2hex($utf16));
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break;
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case (($ord_var_c & 0xFE) == 0xFC):
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// characters U-04000000 - U-7FFFFFFF, mask 1111110X
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// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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$char = pack('C*', $ord_var_c,
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ord($var{$c+1}),
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ord($var{$c+2}),
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ord($var{$c+3}),
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ord($var{$c+4}),
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ord($var{$c+5}));
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$c+=5;
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$utf16 = self::utf8ToUTF16BE($char);
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$ascii .= sprintf('\u%04s', bin2hex($utf16));
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break;
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}
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}
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return '"'.$ascii.'"';
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case 'array':
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/*
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* As per JSON spec if any array key is not an integer
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* we must treat the the whole array as an object. We
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* also try to catch a sparsely populated associative
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* array with numeric keys here because some JS engines
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* will create an array with empty indexes up to
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* max_index which can cause memory issues and because
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* the keys, which may be relevant, will be remapped
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* otherwise.
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*
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* As per the ECMA and JSON specification an object may
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* have any string as a property. Unfortunately due to
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* a hole in the ECMA specification if the key is a
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* ECMA reserved word or starts with a digit the
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* parameter is only accessible using ECMAScript's
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* bracket notation.
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*/
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// treat as a JSON object
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if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) {
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return '{' .
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join(',', array_map(array('CJSON', 'nameValue'),
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array_keys($var),
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array_values($var)))
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. '}';
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}
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// treat it like a regular array
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return '[' . join(',', array_map(array('CJSON', 'encode'), $var)) . ']';
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case 'object':
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if ($var instanceof Traversable)
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{
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$vars = array();
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foreach ($var as $k=>$v)
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$vars[$k] = $v;
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}
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else
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$vars = get_object_vars($var);
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return '{' .
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join(',', array_map(array('CJSON', 'nameValue'),
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array_keys($vars),
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array_values($vars)))
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. '}';
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default:
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return '';
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}
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}
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/**
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* array-walking function for use in generating JSON-formatted name-value pairs
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*
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* @param string $name name of key to use
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* @param mixed $value reference to an array element to be encoded
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*
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* @return string JSON-formatted name-value pair, like '"name":value'
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* @access private
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*/
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protected static function nameValue($name, $value)
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{
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return self::encode(strval($name)) . ':' . self::encode($value);
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}
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/**
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* reduce a string by removing leading and trailing comments and whitespace
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*
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* @param string $str string value to strip of comments and whitespace
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*
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* @return string string value stripped of comments and whitespace
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* @access private
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*/
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protected static function reduceString($str)
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{
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$str = preg_replace(array(
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// eliminate single line comments in '// ...' form
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'#^\s*//(.+)$#m',
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// eliminate multi-line comments in '/* ... */' form, at start of string
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'#^\s*/\*(.+)\*/#Us',
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// eliminate multi-line comments in '/* ... */' form, at end of string
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'#/\*(.+)\*/\s*$#Us'
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), '', $str);
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// eliminate extraneous space
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return trim($str);
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}
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/**
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* decodes a JSON string into appropriate variable
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*
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* @param string $str JSON-formatted string
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* @param boolean $useArray whether to use associative array to represent object data
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* @return mixed number, boolean, string, array, or object corresponding to given JSON input string.
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* Note that decode() always returns strings in ASCII or UTF-8 format!
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* @access public
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*/
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public static function decode($str, $useArray=true)
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{
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if(function_exists('json_decode'))
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{
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$json = json_decode($str,$useArray);
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// based on investigation, native fails sometimes returning null.
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// see: http://gggeek.altervista.org/sw/article_20070425.html
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// As of PHP 5.3.6 it still fails on some valid JSON strings
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if($json !== null)
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return $json;
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}
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$str = self::reduceString($str);
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switch (strtolower($str)) {
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case 'true':
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return true;
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case 'false':
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return false;
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case 'null':
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return null;
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default:
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if (is_numeric($str)) {
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// Lookie-loo, it's a number
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// This would work on its own, but I'm trying to be
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// good about returning integers where appropriate:
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// return (float)$str;
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// Return float or int, as appropriate
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return ((float)$str == (integer)$str)
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? (integer)$str
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: (float)$str;
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} elseif (preg_match('/^("|\').+(\1)$/s', $str, $m) && $m[1] == $m[2]) {
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// STRINGS RETURNED IN UTF-8 FORMAT
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$delim = substr($str, 0, 1);
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$chrs = substr($str, 1, -1);
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$utf8 = '';
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$strlen_chrs = strlen($chrs);
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for ($c = 0; $c < $strlen_chrs; ++$c) {
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$substr_chrs_c_2 = substr($chrs, $c, 2);
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$ord_chrs_c = ord($chrs{$c});
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switch (true) {
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case $substr_chrs_c_2 == '\b':
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$utf8 .= chr(0x08);
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++$c;
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break;
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case $substr_chrs_c_2 == '\t':
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$utf8 .= chr(0x09);
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++$c;
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break;
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case $substr_chrs_c_2 == '\n':
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$utf8 .= chr(0x0A);
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++$c;
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break;
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case $substr_chrs_c_2 == '\f':
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$utf8 .= chr(0x0C);
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++$c;
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break;
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case $substr_chrs_c_2 == '\r':
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$utf8 .= chr(0x0D);
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++$c;
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break;
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case $substr_chrs_c_2 == '\\"':
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case $substr_chrs_c_2 == '\\\'':
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case $substr_chrs_c_2 == '\\\\':
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case $substr_chrs_c_2 == '\\/':
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if (($delim == '"' && $substr_chrs_c_2 != '\\\'') ||
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($delim == "'" && $substr_chrs_c_2 != '\\"')) {
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$utf8 .= $chrs{++$c};
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}
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break;
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case preg_match('/\\\u[0-9A-F]{4}/i', substr($chrs, $c, 6)):
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// single, escaped unicode character
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$utf16 = chr(hexdec(substr($chrs, ($c+2), 2)))
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. chr(hexdec(substr($chrs, ($c+4), 2)));
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$utf8 .= self::utf16beToUTF8($utf16);
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$c+=5;
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break;
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case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F):
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$utf8 .= $chrs{$c};
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break;
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case ($ord_chrs_c & 0xE0) == 0xC0:
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// characters U-00000080 - U-000007FF, mask 110XXXXX
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//see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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$utf8 .= substr($chrs, $c, 2);
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++$c;
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break;
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case ($ord_chrs_c & 0xF0) == 0xE0:
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// characters U-00000800 - U-0000FFFF, mask 1110XXXX
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// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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$utf8 .= substr($chrs, $c, 3);
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$c += 2;
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break;
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case ($ord_chrs_c & 0xF8) == 0xF0:
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// characters U-00010000 - U-001FFFFF, mask 11110XXX
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// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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$utf8 .= substr($chrs, $c, 4);
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$c += 3;
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break;
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case ($ord_chrs_c & 0xFC) == 0xF8:
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// characters U-00200000 - U-03FFFFFF, mask 111110XX
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// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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$utf8 .= substr($chrs, $c, 5);
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$c += 4;
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break;
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case ($ord_chrs_c & 0xFE) == 0xFC:
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// characters U-04000000 - U-7FFFFFFF, mask 1111110X
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// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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$utf8 .= substr($chrs, $c, 6);
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$c += 5;
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break;
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}
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}
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return $utf8;
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} elseif (preg_match('/^\[.*\]$/s', $str) || preg_match('/^\{.*\}$/s', $str)) {
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// array, or object notation
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if ($str{0} == '[') {
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$stk = array(self::JSON_IN_ARR);
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$arr = array();
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} else {
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if ($useArray) {
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$stk = array(self::JSON_IN_OBJ);
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$obj = array();
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} else {
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$stk = array(self::JSON_IN_OBJ);
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$obj = new stdClass();
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}
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}
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$stk[] = array('what' => self::JSON_SLICE, 'where' => 0, 'delim' => false);
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$chrs = substr($str, 1, -1);
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$chrs = self::reduceString($chrs);
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if ($chrs == '') {
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if (reset($stk) == self::JSON_IN_ARR) {
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return $arr;
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} else {
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return $obj;
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}
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}
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//print("\nparsing {$chrs}\n");
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$strlen_chrs = strlen($chrs);
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for ($c = 0; $c <= $strlen_chrs; ++$c) {
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$top = end($stk);
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$substr_chrs_c_2 = substr($chrs, $c, 2);
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if (($c == $strlen_chrs) || (($chrs{$c} == ',') && ($top['what'] == self::JSON_SLICE))) {
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// found a comma that is not inside a string, array, etc.,
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// OR we've reached the end of the character list
|
|
$slice = substr($chrs, $top['where'], ($c - $top['where']));
|
|
$stk[] = array('what' => self::JSON_SLICE, 'where' => ($c + 1), 'delim' => false);
|
|
//print("Found split at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
|
|
|
|
if (reset($stk) == self::JSON_IN_ARR) {
|
|
// we are in an array, so just push an element onto the stack
|
|
$arr[] = self::decode($slice,$useArray);
|
|
|
|
} elseif (reset($stk) == self::JSON_IN_OBJ) {
|
|
// we are in an object, so figure
|
|
// out the property name and set an
|
|
// element in an associative array,
|
|
// for now
|
|
if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
|
|
// "name":value pair
|
|
$key = self::decode($parts[1],$useArray);
|
|
$val = self::decode($parts[2],$useArray);
|
|
|
|
if ($useArray) {
|
|
$obj[$key] = $val;
|
|
} else {
|
|
$obj->$key = $val;
|
|
}
|
|
} elseif (preg_match('/^\s*(\w+)\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
|
|
// name:value pair, where name is unquoted
|
|
$key = $parts[1];
|
|
$val = self::decode($parts[2],$useArray);
|
|
|
|
if ($useArray) {
|
|
$obj[$key] = $val;
|
|
} else {
|
|
$obj->$key = $val;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
} elseif ((($chrs{$c} == '"') || ($chrs{$c} == "'")) && ($top['what'] != self::JSON_IN_STR)) {
|
|
// found a quote, and we are not inside a string
|
|
$stk[] = array('what' => self::JSON_IN_STR, 'where' => $c, 'delim' => $chrs{$c});
|
|
//print("Found start of string at {$c}\n");
|
|
|
|
} elseif (($chrs{$c} == $top['delim']) &&
|
|
($top['what'] == self::JSON_IN_STR) &&
|
|
(($chrs{$c - 1} != "\\") ||
|
|
($chrs{$c - 1} == "\\" && $chrs{$c - 2} == "\\"))) {
|
|
// found a quote, we're in a string, and it's not escaped
|
|
array_pop($stk);
|
|
//print("Found end of string at {$c}: ".substr($chrs, $top['where'], (1 + 1 + $c - $top['where']))."\n");
|
|
|
|
} elseif (($chrs{$c} == '[') &&
|
|
in_array($top['what'], array(self::JSON_SLICE, self::JSON_IN_ARR, self::JSON_IN_OBJ))) {
|
|
// found a left-bracket, and we are in an array, object, or slice
|
|
$stk[] = array('what' => self::JSON_IN_ARR, 'where' => $c, 'delim' => false);
|
|
//print("Found start of array at {$c}\n");
|
|
|
|
} elseif (($chrs{$c} == ']') && ($top['what'] == self::JSON_IN_ARR)) {
|
|
// found a right-bracket, and we're in an array
|
|
array_pop($stk);
|
|
//print("Found end of array at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
|
|
|
|
} elseif (($chrs{$c} == '{') &&
|
|
in_array($top['what'], array(self::JSON_SLICE, self::JSON_IN_ARR, self::JSON_IN_OBJ))) {
|
|
// found a left-brace, and we are in an array, object, or slice
|
|
$stk[] = array('what' => self::JSON_IN_OBJ, 'where' => $c, 'delim' => false);
|
|
//print("Found start of object at {$c}\n");
|
|
|
|
} elseif (($chrs{$c} == '}') && ($top['what'] == self::JSON_IN_OBJ)) {
|
|
// found a right-brace, and we're in an object
|
|
array_pop($stk);
|
|
//print("Found end of object at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
|
|
|
|
} elseif (($substr_chrs_c_2 == '/*') &&
|
|
in_array($top['what'], array(self::JSON_SLICE, self::JSON_IN_ARR, self::JSON_IN_OBJ))) {
|
|
// found a comment start, and we are in an array, object, or slice
|
|
$stk[] = array('what' => self::JSON_IN_CMT, 'where' => $c, 'delim' => false);
|
|
$c++;
|
|
//print("Found start of comment at {$c}\n");
|
|
|
|
} elseif (($substr_chrs_c_2 == '*/') && ($top['what'] == self::JSON_IN_CMT)) {
|
|
// found a comment end, and we're in one now
|
|
array_pop($stk);
|
|
$c++;
|
|
|
|
for ($i = $top['where']; $i <= $c; ++$i)
|
|
$chrs = substr_replace($chrs, ' ', $i, 1);
|
|
|
|
//print("Found end of comment at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (reset($stk) == self::JSON_IN_ARR) {
|
|
return $arr;
|
|
|
|
} elseif (reset($stk) == self::JSON_IN_OBJ) {
|
|
return $obj;
|
|
|
|
}
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This function returns any UTF-8 encoded text as a list of
|
|
* Unicode values:
|
|
* @param string $str string to convert
|
|
* @return string
|
|
* @author Scott Michael Reynen <scott@randomchaos.com>
|
|
* @link http://www.randomchaos.com/document.php?source=php_and_unicode
|
|
* @see unicodeToUTF8()
|
|
*/
|
|
protected static function utf8ToUnicode( &$str )
|
|
{
|
|
$unicode = array();
|
|
$values = array();
|
|
$lookingFor = 1;
|
|
|
|
for ($i = 0; $i < strlen( $str ); $i++ )
|
|
{
|
|
$thisValue = ord( $str[ $i ] );
|
|
if ( $thisValue < 128 )
|
|
$unicode[] = $thisValue;
|
|
else
|
|
{
|
|
if ( count( $values ) == 0 )
|
|
$lookingFor = ( $thisValue < 224 ) ? 2 : 3;
|
|
$values[] = $thisValue;
|
|
if ( count( $values ) == $lookingFor )
|
|
{
|
|
$number = ( $lookingFor == 3 ) ?
|
|
( ( $values[0] % 16 ) * 4096 ) + ( ( $values[1] % 64 ) * 64 ) + ( $values[2] % 64 ):
|
|
( ( $values[0] % 32 ) * 64 ) + ( $values[1] % 64 );
|
|
$unicode[] = $number;
|
|
$values = array();
|
|
$lookingFor = 1;
|
|
}
|
|
}
|
|
}
|
|
return $unicode;
|
|
}
|
|
|
|
/**
|
|
* This function converts a Unicode array back to its UTF-8 representation
|
|
* @param string $str string to convert
|
|
* @return string
|
|
* @author Scott Michael Reynen <scott@randomchaos.com>
|
|
* @link http://www.randomchaos.com/document.php?source=php_and_unicode
|
|
* @see utf8ToUnicode()
|
|
*/
|
|
protected static function unicodeToUTF8( &$str )
|
|
{
|
|
$utf8 = '';
|
|
foreach( $str as $unicode )
|
|
{
|
|
if ( $unicode < 128 )
|
|
{
|
|
$utf8.= chr( $unicode );
|
|
}
|
|
elseif ( $unicode < 2048 )
|
|
{
|
|
$utf8.= chr( 192 + ( ( $unicode - ( $unicode % 64 ) ) / 64 ) );
|
|
$utf8.= chr( 128 + ( $unicode % 64 ) );
|
|
}
|
|
else
|
|
{
|
|
$utf8.= chr( 224 + ( ( $unicode - ( $unicode % 4096 ) ) / 4096 ) );
|
|
$utf8.= chr( 128 + ( ( ( $unicode % 4096 ) - ( $unicode % 64 ) ) / 64 ) );
|
|
$utf8.= chr( 128 + ( $unicode % 64 ) );
|
|
}
|
|
}
|
|
return $utf8;
|
|
}
|
|
|
|
/**
|
|
* UTF-8 to UTF-16BE conversion.
|
|
*
|
|
* Maybe really UCS-2 without mb_string due to utf8ToUnicode limits
|
|
* @param string $str string to convert
|
|
* @param boolean $bom whether to output BOM header
|
|
* @return string
|
|
*/
|
|
protected static function utf8ToUTF16BE(&$str, $bom = false)
|
|
{
|
|
$out = $bom ? "\xFE\xFF" : '';
|
|
if(function_exists('mb_convert_encoding'))
|
|
return $out.mb_convert_encoding($str,'UTF-16BE','UTF-8');
|
|
|
|
$uni = self::utf8ToUnicode($str);
|
|
foreach($uni as $cp)
|
|
$out .= pack('n',$cp);
|
|
return $out;
|
|
}
|
|
|
|
/**
|
|
* UTF-8 to UTF-16BE conversion.
|
|
*
|
|
* Maybe really UCS-2 without mb_string due to utf8ToUnicode limits
|
|
* @param string $str string to convert
|
|
* @return string
|
|
*/
|
|
protected static function utf16beToUTF8(&$str)
|
|
{
|
|
$uni = unpack('n*',$str);
|
|
return self::unicodeToUTF8($uni);
|
|
}
|
|
}
|