symfony
diff --git a/‎src/Symfony/Component/Filesystem/Filesystem.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Filesystem/Filesystem.php
+11Lines changed: 11 additions & 0 deletions b/‎src/Symfony/Component/Filesystem/Filesystem.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Filesystem/Filesystem.php
+11Lines changed: 11 additions & 0 deletions
@@ -318,6 +318,8 @@ private function isReadable(string $filename): bool
      */
     public function symlink($originDir, $targetDir, $copyOnWindows = false)
     {
+        self::assertOperationIsAvailable('symlink');
+
         if ('\\' === \DIRECTORY_SEPARATOR) {
             $originDir = strtr($originDir, '/', '\\');
             $targetDir = strtr($targetDir, '/', '\\');
@@ -354,6 +356,8 @@ public function symlink($originDir, $targetDir, $copyOnWindows = false)
      */
     public function hardlink($originFile, $targetFiles)
     {
+        self::assertOperationIsAvailable('link');
+
         if (!$this->exists($originFile)) {
             throw new FileNotFoundException(null, 0, null, $originFile);
         }
@@ -737,6 +741,13 @@ private function getSchemeAndHierarchy(string $filename): array
         return 2 === \count($components) ? [$components[0], $components[1]] : [null, $components[0]];
     }
 
+    private static function assertOperationIsAvailable(string $functionName): void
+    {
+        if (!\function_exists($functionName)) {
+            throw new IOException(sprintf('Unable to perform filesystem operation because the "%s()" function has been disabled.', $functionName));
+        }
+    }
+
     /**
      * @param mixed ...$args
      *