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<?php
/**
* This file contains paired-down/modified code originally found in Symfony
* package file Php72.php, used here as a PHP standard replacement for now
* deprecated PHP functions utf8_encode() and utf8_decode().
*
* Modified by: Michael Alegre (LiteSpeed Technologies, Inc.), 2023
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Lsc\Wp\ThirdParty\Polyfill;
/**
* @since 1.16.1
*/
class Utf8
{
/**
*
* @since 1.16.1
*
* @param $s
*
* @return false|string
*/
public static function encode($s)
{
$s .= $s;
$len = strlen($s);
for ($i = $len >> 1, $j = 0; $i < $len; ++$i, ++$j) {
if ( $s[$i] < "\x80" ) {
$s[$j] = $s[$i];
}
elseif ( $s[$i] < "\xC0" ) {
$s[$j] = "\xC2";
$s[++$j] = $s[$i];
}
else {
$s[$j] = "\xC3";
$s[++$j] = chr(ord($s[$i]) - 64);
}
}
return substr($s, 0, $j);
}
/**
*
* @since 1.16.1
*
* @param $s
*
* @return false|string
*/
public static function decode($s)
{
$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;
// fallthrough
case "\xE0":
$s[$j] = '?';
$i += 2;
break;
default:
$s[$j] = $s[$i];
}
}
return substr($s, 0, $j);
}
}