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<?php /** * Akeeba Engine * * @package akeebaengine * @copyright Copyright (c)2006-2026 Nicholas K. Dionysopoulos / Akeeba Ltd * @license https://www.gnu.org/licenses/gpl-3.0.html GNU General Public License version 3, or later * * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public * License as published by the Free Software Foundation, version 3. * * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with this program. If not, see * <https://www.gnu.org/licenses/>. */ namespace Akeeba\Engine\Util; defined('AKEEBAENGINE') || die(); /** * Replacement for the utf8_encode and utf8_decode functions on PHP 8.2 and later. * * @see https://wiki.php.net/rfc/remove_utf8_decode_and_utf8_encode */ class Utf8 { public static function utf8_encode($s) { if (version_compare(PHP_VERSION, '8.1.999', 'le')) { return utf8_encode($s); } if (function_exists('mb_convert_encoding')) { return mb_convert_encoding($s, 'UTF-8', 'ISO-8859-1'); } if (class_exists('UConverter')) { return UConverter::transcode($s, 'UTF8', 'ISO-8859-1'); } if (function_exists('iconv')) { return iconv('ISO-8859-1', 'UTF-8', $s); } /** * Fallback to the pure PHP implementation from Symfony Polyfill for PHP 7.2 * * @see https://github.com/symfony/polyfill-php72/blob/v1.26.0/Php72.php */ $s .= $s; $len = \strlen($s); for ($i = $len >> 1, $j = 0; $i < $len; ++$i, ++$j) { switch (true) { case $s[$i] < "\x80": $s[$j] = $s[$i]; break; case $s[$i] < "\xC0": $s[$j] = "\xC2"; $s[++$j] = $s[$i]; break; default: $s[$j] = "\xC3"; $s[++$j] = \chr(\ord($s[$i]) - 64); break; } } return substr($s, 0, $j); } public static function utf8_decode($s) { if (version_compare(PHP_VERSION, '8.1.999', 'le')) { return utf8_decode($s); } if (function_exists('mb_convert_encoding')) { return mb_convert_encoding($s, 'ISO-8859-1', 'UTF-8'); } if (class_exists('UConverter')) { return UConverter::transcode($s, 'ISO-8859-1', 'UTF8'); } if (function_exists('iconv')) { return iconv('UTF-8', 'ISO-8859-1', $s); } /** * Fallback to the pure PHP implementation from Symfony Polyfill for PHP 7.2 * * @see https://github.com/symfony/polyfill-php72/blob/v1.26.0/Php72.php */ $s = (string) $s; $len = \strlen($s); for ($i = 0, $j = 0; $i < $len; ++$i, ++$j) { switch ($s[$i] & "\xF0") { case "\xC0": case "\xD0": $c = (\ord($s[$i] & "\x1F") << 6) | \ord($s[++$i] & "\x3F"); $s[$j] = $c < 256 ? \chr($c) : '?'; break; case "\xF0": ++$i; // no break case "\xE0": $s[$j] = '?'; $i += 2; break; default: $s[$j] = $s[$i]; } } return substr($s, 0, $j); } }
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