Delete directory before moving

includes/functions/deleteDirectory.php

@@ -0,0 +1,24 @@
+<?php
+
+/**
+ * Delete a directory with all of its contents.
+ *
+ * @author Jay Trees <github.jay@grandel.anonaddy.me>
+ */
+
+function delete_directory(string $directoryToDelete)
+{
+    foreach (scandir($directoryToDelete) as $filename) {
+        $filepath = $directoryToDelete . '/' . $filename;
+
+        if (is_file($filepath)) {
+            unlink($filepath);
+        }
+
+        if (is_dir($filepath)) {
+            delete_directory($filepath);
+        }
+    }
+
+    unlink($directoryToDelete);
+}

index.php

@@ -110,8 +110,13 @@ if ($zip->open($zip_filename)) {
 
         if (is_file($filepath)) {
             echo 'Rename ' . $filepath . ' to ' . __DIR__ . '/' . $filename . '<br>';
-            rename($filepath, __DIR__ . '/' . $filename);
         }
+
+        if (is_dir($filepath)) {
+            delete_directory($filepath);
+        }
+
+        rename($filepath, __DIR__ . '/' . $filename);
     }
 }