116 lines
2.4 KiB
PHP
116 lines
2.4 KiB
PHP
<?php
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/**
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* Akeeba Engine
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*
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* @package akeebaengine
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* @copyright Copyright (c)2006-2022 Nicholas K. Dionysopoulos / Akeeba Ltd
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* @license GNU General Public License version 3, or later
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*/
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namespace Akeeba\Engine\Util;
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defined('AKEEBAENGINE') || die();
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/**
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* Replacement for the utf8_encode and utf8_decode functions on PHP 8.2 and later.
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*
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* @see https://wiki.php.net/rfc/remove_utf8_decode_and_utf8_encode
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*/
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class Utf8
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{
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public static function utf8_encode($s)
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{
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if (version_compare(PHP_VERSION, '8.1.999', 'le'))
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{
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return utf8_encode($s);
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}
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if (function_exists('mb_convert_encoding'))
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{
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return mb_convert_encoding($s, 'UTF-8', 'ISO-8859-1');
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}
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if (class_exists('UConverter'))
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{
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return UConverter::transcode($s, 'UTF8', 'ISO-8859-1');
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}
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if (function_exists('iconv'))
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{
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return iconv('ISO-8859-1', 'UTF-8', $s);
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}
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/**
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* Fallback to the pure PHP implementation from Symfony Polyfill for PHP 7.2
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*
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* @see https://github.com/symfony/polyfill-php72/blob/v1.26.0/Php72.php
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*/
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$s .= $s;
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$len = \strlen($s);
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for ($i = $len >> 1, $j = 0; $i < $len; ++$i, ++$j) {
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switch (true) {
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case $s[$i] < "\x80": $s[$j] = $s[$i]; break;
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case $s[$i] < "\xC0": $s[$j] = "\xC2"; $s[++$j] = $s[$i]; break;
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default: $s[$j] = "\xC3"; $s[++$j] = \chr(\ord($s[$i]) - 64); break;
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}
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}
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return substr($s, 0, $j);
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}
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public static function utf8_decode($s)
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{
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if (version_compare(PHP_VERSION, '8.1.999', 'le'))
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{
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return utf8_decode($s);
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}
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if (function_exists('mb_convert_encoding'))
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{
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return mb_convert_encoding($s, 'ISO-8859-1', 'UTF-8');
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}
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if (class_exists('UConverter'))
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{
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return UConverter::transcode($s, 'ISO-8859-1', 'UTF8');
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}
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if (function_exists('iconv'))
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{
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return iconv('UTF-8', 'ISO-8859-1', $s);
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}
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/**
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* Fallback to the pure PHP implementation from Symfony Polyfill for PHP 7.2
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*
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* @see https://github.com/symfony/polyfill-php72/blob/v1.26.0/Php72.php
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*/
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$s = (string) $s;
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$len = \strlen($s);
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for ($i = 0, $j = 0; $i < $len; ++$i, ++$j) {
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switch ($s[$i] & "\xF0") {
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case "\xC0":
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case "\xD0":
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$c = (\ord($s[$i] & "\x1F") << 6) | \ord($s[++$i] & "\x3F");
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$s[$j] = $c < 256 ? \chr($c) : '?';
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break;
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case "\xF0":
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++$i;
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// no break
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case "\xE0":
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$s[$j] = '?';
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$i += 2;
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break;
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default:
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$s[$j] = $s[$i];
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}
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}
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return substr($s, 0, $j);
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}
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} |