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