lowercase file extension before using it for type detection

diff --git a/src/phorkie/File.php b/src/phorkie/File.php
index dc90d9bc096747ef93ddfb5f8c52a1a45dd3c774..2aa1d194c48d2c3e87ccbf7876ff1aa1988446c6 100644 (file)
--- a/src/phorkie/File.php
+++ b/src/phorkie/File.php
@@ -55,7 +55,7 @@ class File
      */
     public function getExt()
     {
-        return substr($this->path, strrpos($this->path, '.') + 1);
+        return strtolower(substr($this->path, strrpos($this->path, '.') + 1));
     }
 
     public function getContent()