diff --git a/composer.json b/composer.json
index 98fe72ab9..80b97d6ad 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
         "composer/metadata-minifier": "^1.0",
         "composer/semver": "^3.0",
         "composer/spdx-licenses": "^1.2",
-        "composer/xdebug-handler": "^2 || ^3.0.1",
+        "composer/xdebug-handler": "^2.0.2 || ^3.0.3",
         "justinrainbow/json-schema": "^5.2.11",
         "psr/log": "^1.0 || ^2.0 || ^3.0",
         "seld/jsonlint": "^1.4",
@@ -37,7 +37,7 @@
         "symfony/finder": "^5.4 || ^6.0",
         "symfony/process": "^5.4 || ^6.0",
         "react/promise": "^2.8",
-        "composer/pcre": "^1.0",
+        "composer/pcre": "^2 || ^3",
         "symfony/polyfill-php73": "^1.24",
         "symfony/polyfill-php80": "^1.24"
     },
diff --git a/composer.lock b/composer.lock
index 18905377e..46984de0e 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "03b82664ef6f80651118f0c06a49280c",
+    "content-hash": "3a7c7da73f59287030b9704930778e2b",
     "packages": [
         {
             "name": "composer/ca-bundle",
@@ -153,30 +153,30 @@
         },
         {
             "name": "composer/pcre",
-            "version": "1.0.1",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/composer/pcre.git",
-                "reference": "67a32d7d6f9f560b726ab25a061b38ff3a80c560"
+                "reference": "c8e9d27cfc5ed22643c19c160455b473ffd8aabe"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/composer/pcre/zipball/67a32d7d6f9f560b726ab25a061b38ff3a80c560",
-                "reference": "67a32d7d6f9f560b726ab25a061b38ff3a80c560",
+                "url": "https://api.github.com/repos/composer/pcre/zipball/c8e9d27cfc5ed22643c19c160455b473ffd8aabe",
+                "reference": "c8e9d27cfc5ed22643c19c160455b473ffd8aabe",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.3.2 || ^7.0 || ^8.0"
+                "php": "^7.2 || ^8.0"
             },
             "require-dev": {
                 "phpstan/phpstan": "^1.3",
                 "phpstan/phpstan-strict-rules": "^1.1",
-                "symfony/phpunit-bridge": "^4.2 || ^5"
+                "symfony/phpunit-bridge": "^5"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-main": "1.x-dev"
+                    "dev-main": "2.x-dev"
                 }
             },
             "autoload": {
@@ -204,7 +204,7 @@
             ],
             "support": {
                 "issues": "https://github.com/composer/pcre/issues",
-                "source": "https://github.com/composer/pcre/tree/1.0.1"
+                "source": "https://github.com/composer/pcre/tree/2.0.0"
             },
             "funding": [
                 {
@@ -220,7 +220,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-01-21T20:24:37+00:00"
+            "time": "2022-02-25T20:05:29+00:00"
         },
         {
             "name": "composer/semver",
@@ -385,20 +385,20 @@
         },
         {
             "name": "composer/xdebug-handler",
-            "version": "3.0.2",
+            "version": "3.0.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/composer/xdebug-handler.git",
-                "reference": "b11b961ef6b11e380e81a20b27c8cad54eeefe61"
+                "reference": "ced299686f41dce890debac69273b47ffe98a40c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/composer/xdebug-handler/zipball/b11b961ef6b11e380e81a20b27c8cad54eeefe61",
-                "reference": "b11b961ef6b11e380e81a20b27c8cad54eeefe61",
+                "url": "https://api.github.com/repos/composer/xdebug-handler/zipball/ced299686f41dce890debac69273b47ffe98a40c",
+                "reference": "ced299686f41dce890debac69273b47ffe98a40c",
                 "shasum": ""
             },
             "require": {
-                "composer/pcre": "^1",
+                "composer/pcre": "^1 || ^2 || ^3",
                 "php": "^7.2.5 || ^8.0",
                 "psr/log": "^1 || ^2 || ^3"
             },
@@ -431,7 +431,7 @@
             "support": {
                 "irc": "irc://irc.freenode.org/composer",
                 "issues": "https://github.com/composer/xdebug-handler/issues",
-                "source": "https://github.com/composer/xdebug-handler/tree/3.0.2"
+                "source": "https://github.com/composer/xdebug-handler/tree/3.0.3"
             },
             "funding": [
                 {
@@ -447,7 +447,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-02-24T20:53:32+00:00"
+            "time": "2022-02-25T21:32:43+00:00"
         },
         {
             "name": "justinrainbow/json-schema",
diff --git a/src/Composer/Autoload/ClassMapGenerator.php b/src/Composer/Autoload/ClassMapGenerator.php
index fa687d101..bc9e0ec95 100644
--- a/src/Composer/Autoload/ClassMapGenerator.php
+++ b/src/Composer/Autoload/ClassMapGenerator.php
@@ -263,7 +263,7 @@ class ClassMapGenerator
 
         for ($i = 0, $len = count($matches['type']); $i < $len; $i++) {
             if (!empty($matches['ns'][$i])) {
-                $namespace = str_replace(array(' ', "\t", "\r", "\n"), '', $matches['nsname'][$i]) . '\\';
+                $namespace = str_replace(array(' ', "\t", "\r", "\n"), '', (string) $matches['nsname'][$i]) . '\\';
             } else {
                 $name = $matches['name'][$i];
                 // skip anon classes extending/implementing
diff --git a/src/Composer/Json/JsonManipulator.php b/src/Composer/Json/JsonManipulator.php
index 96a188d16..9d9792cfe 100644
--- a/src/Composer/Json/JsonManipulator.php
+++ b/src/Composer/Json/JsonManipulator.php
@@ -431,6 +431,7 @@ class JsonManipulator
         }
 
         // no child data left, $name was the only key in
+        unset($match);
         Preg::match('#^{ \s*? (?P<content>\S+.*?)? (?P<trailingspace>\s*) }$#sx', $childrenClean, $match);
         if (empty($match['content'])) {
             $newline = $this->newline;
diff --git a/src/Composer/Package/Loader/RootPackageLoader.php b/src/Composer/Package/Loader/RootPackageLoader.php
index c4c345065..211a23c87 100644
--- a/src/Composer/Package/Loader/RootPackageLoader.php
+++ b/src/Composer/Package/Loader/RootPackageLoader.php
@@ -240,7 +240,7 @@ class RootPackageLoader extends ArrayLoader
             }
 
             // parse explicit stability flags to the most unstable
-            $match = false;
+            $matched = false;
             foreach ($constraints as $constraint) {
                 if (Preg::isMatch('{^[^@]*?@('.implode('|', array_keys($stabilities)).')$}i', $constraint, $match)) {
                     $name = strtolower($reqName);
@@ -250,11 +250,11 @@ class RootPackageLoader extends ArrayLoader
                         continue;
                     }
                     $stabilityFlags[$name] = $stability;
-                    $match = true;
+                    $matched = true;
                 }
             }
 
-            if ($match) {
+            if ($matched) {
                 continue;
             }
 
diff --git a/src/Composer/Repository/Vcs/GitLabDriver.php b/src/Composer/Repository/Vcs/GitLabDriver.php
index d80157f37..bb4db239c 100644
--- a/src/Composer/Repository/Vcs/GitLabDriver.php
+++ b/src/Composer/Repository/Vcs/GitLabDriver.php
@@ -620,26 +620,26 @@ class GitLabDriver extends VcsDriver
      *
      * @return string|false
      */
-    private static function determineOrigin(array $configuredDomains, string $guessedDomain, array &$urlParts, string $portNumber)
+    private static function determineOrigin(array $configuredDomains, string $guessedDomain, array &$urlParts, ?string $portNumber)
     {
         $guessedDomain = strtolower($guessedDomain);
 
-        if (in_array($guessedDomain, $configuredDomains) || ($portNumber && in_array($guessedDomain.':'.$portNumber, $configuredDomains))) {
-            if ($portNumber) {
+        if (in_array($guessedDomain, $configuredDomains) || (null !== $portNumber && in_array($guessedDomain.':'.$portNumber, $configuredDomains))) {
+            if (null !== $portNumber) {
                 return $guessedDomain.':'.$portNumber;
             }
 
             return $guessedDomain;
         }
 
-        if ($portNumber) {
+        if (null !== $portNumber) {
             $guessedDomain .= ':'.$portNumber;
         }
 
         while (null !== ($part = array_shift($urlParts))) {
             $guessedDomain .= '/' . $part;
 
-            if (in_array($guessedDomain, $configuredDomains) || ($portNumber && in_array(Preg::replace('{:\d+}', '', $guessedDomain), $configuredDomains))) {
+            if (in_array($guessedDomain, $configuredDomains) || (null !== $portNumber && in_array(Preg::replace('{:\d+}', '', $guessedDomain), $configuredDomains))) {
                 return $guessedDomain;
             }
         }