diff --git a/src/Composer/Command/RemoveCommand.php b/src/Composer/Command/RemoveCommand.php
index ce13d3df5c48..93eca56967ea 100644
--- a/src/Composer/Command/RemoveCommand.php
+++ b/src/Composer/Command/RemoveCommand.php
@@ -134,6 +134,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
         $file = Factory::getComposerFile();
 
         $jsonFile = new JsonFile($file);
+        /** @var array{require?: array<string, string>, require-dev?: array<string, string>} $composer */
         $composer = $jsonFile->read();
         $composerBackup = file_get_contents($jsonFile->getPath());
 
@@ -176,7 +177,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
                         }
                     }
                 }
-            } elseif (isset($composer[$type]) && $matches = Preg::grep(BasePackage::packageNameToRegexp($package), array_keys($composer[$type]))) {
+            } elseif (isset($composer[$type]) && count($matches = Preg::grep(BasePackage::packageNameToRegexp($package), array_keys($composer[$type]))) > 0) {
                 foreach ($matches as $matchedPackage) {
                     if ($dryRun) {
                         $toRemove[$type][] = $matchedPackage;
@@ -184,7 +185,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
                         $json->removeLink($type, $matchedPackage);
                     }
                 }
-            } elseif (isset($composer[$altType]) && $matches = Preg::grep(BasePackage::packageNameToRegexp($package), array_keys($composer[$altType]))) {
+            } elseif (isset($composer[$altType]) && count($matches = Preg::grep(BasePackage::packageNameToRegexp($package), array_keys($composer[$altType]))) > 0) {
                 foreach ($matches as $matchedPackage) {
                     $io->writeError('<warning>' . $matchedPackage . ' could not be found in ' . $type . ' but it is present in ' . $altType . '</warning>');
                     if ($io->isInteractive()) {
diff --git a/src/Composer/DependencyResolver/Rule.php b/src/Composer/DependencyResolver/Rule.php
index 8909f67fec85..f02b764115fa 100644
--- a/src/Composer/DependencyResolver/Rule.php
+++ b/src/Composer/DependencyResolver/Rule.php
@@ -373,6 +373,7 @@ public function getPrettyString(RepositorySet $repositorySet, Request $request,
                     $package = $pool->literalToPackage($literal);
                     $packageNames[$package->getName()] = true;
                 }
+                /** @var string $replacedName */
                 $replacedName = $this->reasonData;
 
                 if (count($packageNames) > 1) {
diff --git a/src/Composer/Util/Http/CurlDownloader.php b/src/Composer/Util/Http/CurlDownloader.php
index b82c850ba4e9..1a71f96aa3af 100644
--- a/src/Composer/Util/Http/CurlDownloader.php
+++ b/src/Composer/Util/Http/CurlDownloader.php
@@ -333,6 +333,9 @@ public function tick(): void
             }
 
             $progress = curl_getinfo($curlHandle);
+            if (false === $progress) {
+                throw new \RuntimeException('Failed getting info from curl handle '.$i.' ('.$this->jobs[$i]['url'].')');
+            }
             $job = $this->jobs[$i];
             unset($this->jobs[$i]);
             $error = curl_error($curlHandle);
@@ -364,7 +367,7 @@ public function tick(): void
                         continue;
                     }
 
-                    if ($errno === 28 /* CURLE_OPERATION_TIMEDOUT */ && isset($progress['namelookup_time']) && $progress['namelookup_time'] == 0 && !$timeoutWarning) {
+                    if ($errno === 28 /* CURLE_OPERATION_TIMEDOUT */ && PHP_VERSION_ID >= 70300 && $progress['namelookup_time'] == 0 && !$timeoutWarning) {
                         $timeoutWarning = true;
                         $this->io->writeError('<warning>A connection timeout was encountered. If you intend to run Composer without connecting to the internet, run the command again prefixed with COMPOSER_DISABLE_NETWORK=1 to make Composer run in offline mode.</warning>');
                     }
@@ -443,14 +446,14 @@ public function tick(): void
                     call_user_func($job['resolve'], $response);
                 }
             } catch (\Exception $e) {
-                if ($e instanceof TransportException && $headers) {
-                    $e->setHeaders($headers);
-                    $e->setStatusCode($statusCode);
-                }
-                if ($e instanceof TransportException && $response) {
-                    $e->setResponse($response->getBody());
-                }
-                if ($e instanceof TransportException && $progress) {
+                if ($e instanceof TransportException) {
+                    if (null !== $headers) {
+                        $e->setHeaders($headers);
+                        $e->setStatusCode($statusCode);
+                    }
+                    if (null !== $response) {
+                        $e->setResponse($response->getBody());
+                    }
                     $e->setResponseInfo($progress);
                 }
 
diff --git a/tests/Composer/Test/Repository/PlatformRepositoryTest.php b/tests/Composer/Test/Repository/PlatformRepositoryTest.php
index 0b672729b03a..960ea25c8dcb 100644
--- a/tests/Composer/Test/Repository/PlatformRepositoryTest.php
+++ b/tests/Composer/Test/Repository/PlatformRepositoryTest.php
@@ -1078,7 +1078,7 @@ public static function provideLibraryTestCases(): array
      *
      * @param string|string[]            $extensions
      * @param string|null                $info
-     * @param array<string,string|false> $expectations
+     * @param array<string,string|false|array{string|false, 1?: string[], 2?: string[]}> $expectations array of packageName => expected version (or false if expected to be msising), or packageName => array(expected version, expected replaced names, expected provided names)
      * @param list<mixed>                $functions
      * @param list<mixed>                $constants
      * @param list<mixed>                $classDefinitions
@@ -1153,10 +1153,6 @@ public function testLibraryInformation(
 
         $platformRepository = new PlatformRepository(array(), array(), $runtime);
 
-        $expectations = array_map(function ($expectation): array {
-            return array_replace(array(null, array(), array()), (array) $expectation);
-        }, $expectations);
-
         $libraries = array_map(
             function ($package): string {
                 return $package['name'];
@@ -1168,17 +1164,21 @@ function ($package): bool {
                 }
             )
         );
-        $expectedLibraries = array_merge(array_keys(array_filter($expectations, function ($expectation): bool {
-            return $expectation[0] !== false;
-        })));
+        $expectedLibraries = array_keys(array_filter($expectations, function ($expectation): bool {
+            return $expectation !== false;
+        }));
         self::assertCount(count(array_filter($expectedLibraries)), $libraries, sprintf('Expected: %s, got %s', var_export($expectedLibraries, true), var_export($libraries, true)));
 
-        $expectations = array_merge($expectations, array_combine(array_map(function ($extension): string {
-            return 'ext-'.$extension;
-        }, $extensions), array_fill(0, count($extensions), array($extensionVersion, array(), array()))));
+        foreach ($extensions as $extension) {
+            $expectations['ext-'.$extension] = $extensionVersion;
+        }
 
-        foreach ($expectations as $packageName => $expectation) {
-            list($expectedVersion, $expectedReplaces, $expectedProvides) = $expectation;
+        foreach ($expectations as $expectedLibOrExt => $expectation) {
+            $packageName = $expectedLibOrExt;
+            if (!is_array($expectation)) {
+                $expectation = [$expectation, [], []];
+            }
+            list($expectedVersion, $expectedReplaces, $expectedProvides) = array_pad($expectation, 3, []);
 
             $package = $platformRepository->findPackage($packageName, '*');
             if ($expectedVersion === false) {