diff --git a/.gitignore b/.gitignore
index 8e540a3..e81b05c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 composer.phar
 /vendor/
+data
 .idea
 .phpunit.result.cache
diff --git a/README.md b/README.md
index 635cb9e..87d2d0d 100644
--- a/README.md
+++ b/README.md
@@ -80,7 +80,7 @@ $rets->setFindHandler(function (string $targetDir) use ($ftpConnection) {
 
         if (preg_match('/^backup_\w+\.zip$/', $filename)) {
             $date = new DateTimeImmutable('now', new DateTimeZone('UTC'));
-            $date->setTimestamp($time);
+            $date = $date->setTimestamp($time);
 
             $filepath = "$targetDir/$filename";
 
@@ -113,7 +113,7 @@ $ret->setTimeHandler(function (string $filepath, bool $isDirectory) {
         $day = intval($matches[3]);
 
         $date = new DateTimeImmutable('now', new DateTimeZone('UTC'));
-        $date->setDate($year, $month, $day)->setTime(0, 0, 0, 0);
+        $date = $date->setDate($year, $month, $day)->setTime(0, 0, 0, 0);
 
         return new FileInfo(
             date: $date,
@@ -171,4 +171,4 @@ Please be descriptive in your posts.
     
 # ToDo
 
-- [ ] Add keep-within-*** policy support
\ No newline at end of file
+- [ ] Add keep-within-*** policy support 
\ No newline at end of file
diff --git a/examples/custom_find_and_prune_handler.php b/examples/custom_find_and_prune_handler.php
index 969cc9a..fc5ab92 100644
--- a/examples/custom_find_and_prune_handler.php
+++ b/examples/custom_find_and_prune_handler.php
@@ -1,51 +1,57 @@
 <?php
 
 // Example: custom finder function that finds files in ftp by using a custom function instead of scanning the file system
-// Example: custom prune function that deletes files from ftp
+// Example: custom prune function that deletes files from ftp (use xlight ftp server for quick testing)
 
 use PhpRetention\FileInfo;
 use PhpRetention\Retention;
 
 require_once __DIR__ . "/../vendor/autoload.php";
 
-$ftpConnection = ftp_connect("ftp.example.com");
+$ftpConnection = ftp_connect("localhost");
 if (!$ftpConnection) {
     die('Could not connect to the FTP server');
 }
-$loginResult = ftp_login($ftpConnection, "ftp-user", "ftp-pass");
+$loginResult = ftp_login($ftpConnection, "test", "123456");
 if (!$loginResult) {
     die('FTP login failed');
 }
 
 $ret = new Retention([
-    'keep-last' => 2
+    'keep-daily' => 3,
+    'keep-weekly' => 2
 ]);
 $ret->setFindHandler(function (string $targetDir) use ($ftpConnection) {
     $files = [];
     $fileList = ftp_mlsd($ftpConnection, $targetDir) ?: [];
     foreach ($fileList as $file) {
         $filename = $file['name'];
-        $time = (int) $file['modify'];
-
-        if (preg_match('/^backup_\w+\.zip$/', $filename)) {
-            $date = new DateTimeImmutable('now', new DateTimeZone('UTC'));
-            $date->setTimestamp($time);
-
-            $filepath = "$targetDir/$filename";
-
-            $files[] = new FileInfo(
-                date: $date,
-                path: $filepath,
-                isDirectory: false
-            );
+        if (preg_match('/^backup\-\w+$/', $filename)) {
+            if (preg_match('/([0-9]{4})([0-9]{2})([0-9]{2})/', $file['modify'], $matches)) {
+                $year = intval($matches[1]);
+                $month = intval($matches[2]);
+                $day = intval($matches[3]);
+
+                $date = new DateTimeImmutable('now', new DateTimeZone('UTC'));
+                $date = $date->setDate($year, $month, $day)->setTime(0, 0, 0);
+
+                $filepath = "$targetDir/$filename";
+                $files[] = new FileInfo(
+                    date: $date,
+                    path: $filepath,
+                    isDirectory: false
+                );
+            }
         }
     }
 
     return $files;
 });
 $ret->setPruneHandler(function (FileInfo $fileInfo) use ($ftpConnection) {
-    ftp_delete($ftpConnection, $fileInfo->path);
+    return ftp_delete($ftpConnection, $fileInfo->path);
 });
-$ret->apply("/path/to/dir");
+$keptFiles = $ret->apply("/backup");
+
+print_r($keptFiles);
 
 ftp_close($ftpConnection);
\ No newline at end of file