Added Commented code to has the file contents itself instead of the name

functions.php

@@ -635,7 +635,14 @@ function checkFileUpload($file, $allowed_extensions) {
         return "File size exceeds the limit.";
     }
 
-    // Perform additional content-based validation here, if needed
+    // Read the file content
+    //$fileContent = file_get_contents($tmp);
+
+    // Hash the file content using SHA-256
+    //$hashedContent = hash('sha256', $fileContent);
+
+    // Generate a secure filename using the hashed content
+    //$secureFilename = $hashedContent . '.' . $extension;
 
     // Generate a secure filename using SHA-256
     $secureFilename = hash('sha256', time() . $name) . '.' . $extension;