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vendor/symfony/polyfill-php72/Php72.php
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vendor/symfony/polyfill-php72/Php72.php
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Polyfill\Php72;
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/**
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* @author Nicolas Grekas <p@tchwork.com>
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* @author Dariusz Rumiński <dariusz.ruminski@gmail.com>
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*
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* @internal
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*/
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final class Php72
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{
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private static $hashMask;
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public static function utf8_encode($s)
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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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$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, $j);
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}
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public static function php_os_family()
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{
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if ('\\' === \DIRECTORY_SEPARATOR) {
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return 'Windows';
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}
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$map = array(
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'Darwin' => 'Darwin',
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'DragonFly' => 'BSD',
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'FreeBSD' => 'BSD',
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'NetBSD' => 'BSD',
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'OpenBSD' => 'BSD',
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'Linux' => 'Linux',
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'SunOS' => 'Solaris',
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);
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return isset($map[PHP_OS]) ? $map[PHP_OS] : 'Unknown';
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}
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public static function spl_object_id($object)
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{
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if (null === self::$hashMask) {
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self::initHashMask();
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}
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if (null === $hash = spl_object_hash($object)) {
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return;
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}
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return self::$hashMask ^ hexdec(substr($hash, 16 - \PHP_INT_SIZE, \PHP_INT_SIZE));
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}
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public static function sapi_windows_vt100_support($stream, $enable = null)
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{
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if (!\is_resource($stream)) {
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trigger_error('sapi_windows_vt100_support() expects parameter 1 to be resource, '.\gettype($stream).' given', E_USER_WARNING);
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return false;
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}
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$meta = stream_get_meta_data($stream);
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if ('STDIO' !== $meta['stream_type']) {
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trigger_error('sapi_windows_vt100_support() was not able to analyze the specified stream', E_USER_WARNING);
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return false;
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}
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// We cannot actually disable vt100 support if it is set
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if (false === $enable || !self::stream_isatty($stream)) {
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return false;
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}
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// The native function does not apply to stdin
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$meta = array_map('strtolower', $meta);
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$stdin = 'php://stdin' === $meta['uri'] || 'php://fd/0' === $meta['uri'];
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return !$stdin
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&& (false !== getenv('ANSICON')
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|| 'ON' === getenv('ConEmuANSI')
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|| 'xterm' === getenv('TERM')
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|| 'Hyper' === getenv('TERM_PROGRAM'));
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}
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public static function stream_isatty($stream)
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{
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if (!\is_resource($stream)) {
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trigger_error('stream_isatty() expects parameter 1 to be resource, '.\gettype($stream).' given', E_USER_WARNING);
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return false;
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}
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if ('\\' === \DIRECTORY_SEPARATOR) {
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$stat = @fstat($stream);
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// Check if formatted mode is S_IFCHR
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return $stat ? 0020000 === ($stat['mode'] & 0170000) : false;
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}
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return \function_exists('posix_isatty') && @posix_isatty($stream);
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}
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private static function initHashMask()
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{
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$obj = (object) array();
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self::$hashMask = -1;
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// check if we are nested in an output buffering handler to prevent a fatal error with ob_start() below
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$obFuncs = array('ob_clean', 'ob_end_clean', 'ob_flush', 'ob_end_flush', 'ob_get_contents', 'ob_get_flush');
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foreach (debug_backtrace(\PHP_VERSION_ID >= 50400 ? DEBUG_BACKTRACE_IGNORE_ARGS : false) as $frame) {
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if (isset($frame['function'][0]) && !isset($frame['class']) && 'o' === $frame['function'][0] && \in_array($frame['function'], $obFuncs)) {
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$frame['line'] = 0;
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break;
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}
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}
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if (!empty($frame['line'])) {
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ob_start();
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debug_zval_dump($obj);
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self::$hashMask = (int) substr(ob_get_clean(), 17);
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}
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self::$hashMask ^= hexdec(substr(spl_object_hash($obj), 16 - \PHP_INT_SIZE, \PHP_INT_SIZE));
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}
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public static function mb_chr($code, $encoding = null)
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{
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if (0x80 > $code %= 0x200000) {
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$s = \chr($code);
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} elseif (0x800 > $code) {
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$s = \chr(0xC0 | $code >> 6).\chr(0x80 | $code & 0x3F);
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} elseif (0x10000 > $code) {
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$s = \chr(0xE0 | $code >> 12).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F);
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} else {
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$s = \chr(0xF0 | $code >> 18).\chr(0x80 | $code >> 12 & 0x3F).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F);
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}
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if ('UTF-8' !== $encoding) {
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$s = mb_convert_encoding($s, $encoding, 'UTF-8');
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}
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return $s;
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}
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public static function mb_ord($s, $encoding = null)
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{
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if (null == $encoding) {
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$s = mb_convert_encoding($s, 'UTF-8');
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} elseif ('UTF-8' !== $encoding) {
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$s = mb_convert_encoding($s, 'UTF-8', $encoding);
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}
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if (1 === \strlen($s)) {
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return \ord($s);
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}
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$code = ($s = unpack('C*', substr($s, 0, 4))) ? $s[1] : 0;
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if (0xF0 <= $code) {
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return (($code - 0xF0) << 18) + (($s[2] - 0x80) << 12) + (($s[3] - 0x80) << 6) + $s[4] - 0x80;
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}
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if (0xE0 <= $code) {
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return (($code - 0xE0) << 12) + (($s[2] - 0x80) << 6) + $s[3] - 0x80;
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}
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if (0xC0 <= $code) {
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return (($code - 0xC0) << 6) + $s[2] - 0x80;
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}
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return $code;
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}
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}
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