You know the drill, Updates

includes/vendor/symfony/polyfill-php72/Php72.php

@@ -83,7 +83,7 @@ final class Php72
             'SunOS' => 'Solaris',
         ];
 
-        return isset($map[\PHP_OS]) ? $map[\PHP_OS] : 'Unknown';
+        return $map[\PHP_OS] ?? 'Unknown';
     }
 
     public static function spl_object_id($object)
@@ -96,7 +96,7 @@ final class Php72
         }
 
         // On 32-bit systems, PHP_INT_SIZE is 4,
-        return self::$hashMask ^ hexdec(substr($hash, 16 - (\PHP_INT_SIZE * 2 - 1), (\PHP_INT_SIZE * 2 - 1)));
+        return self::$hashMask ^ hexdec(substr($hash, 16 - (\PHP_INT_SIZE * 2 - 1), \PHP_INT_SIZE * 2 - 1));
     }
 
     public static function sapi_windows_vt100_support($stream, $enable = null)
@@ -167,7 +167,7 @@ final class Php72
             self::$hashMask = (int) substr(ob_get_clean(), 17);
         }
 
-        self::$hashMask ^= hexdec(substr(spl_object_hash($obj), 16 - (\PHP_INT_SIZE * 2 - 1), (\PHP_INT_SIZE * 2 - 1)));
+        self::$hashMask ^= hexdec(substr(spl_object_hash($obj), 16 - (\PHP_INT_SIZE * 2 - 1), \PHP_INT_SIZE * 2 - 1));
     }
 
     public static function mb_chr($code, $encoding = null)

includes/vendor/symfony/polyfill-php72/README.md

@@ -6,6 +6,12 @@ This component provides functions added to PHP 7.2 core:
 - [`spl_object_id`](https://php.net/spl_object_id)
 - [`stream_isatty`](https://php.net/stream_isatty)
 
+And also functions added to PHP 7.2 mbstring:
+
+- [`mb_ord`](https://php.net/mb_ord)
+- [`mb_chr`](https://php.net/mb_chr)
+- [`mb_scrub`](https://php.net/mb_scrub)
+
 On Windows only:
 
 - [`sapi_windows_vt100_support`](https://php.net/sapi_windows_vt100_support)
@@ -16,11 +22,12 @@ Moved to core since 7.2 (was in the optional XML extension earlier):
 - [`utf8_decode`](https://php.net/utf8_decode)
 
 Also, it provides constants added to PHP 7.2:
+
 - [`PHP_FLOAT_*`](https://php.net/reserved.constants#constant.php-float-dig)
 - [`PHP_OS_FAMILY`](https://php.net/reserved.constants#constant.php-os-family)
 
 More information can be found in the
-[main Polyfill README](https://github.com/symfony/polyfill/blob/master/README.md).
+[main Polyfill README](https://github.com/symfony/polyfill/blob/main/README.md).
 
 License
 =======

includes/vendor/symfony/polyfill-php72/composer.json

@@ -25,7 +25,7 @@
     "minimum-stability": "dev",
     "extra": {
         "branch-alias": {
-            "dev-main": "1.23-dev"
+            "dev-main": "1.27-dev"
         },
         "thanks": {
             "name": "symfony/polyfill",