1 files changed, 9 insertions, 0 deletions
diff --git a/src/images.php b/src/images.php
index a9caf88..837ebaf 100644
--- a/src/images.php
+++ b/src/images.php
@@ -29,6 +29,15 @@ function resize_image(string $src_path, string $dst_path, int $max_width, int $m
     return $result_code;
 }
 
+function get_file_extension(string $path): string|null
+{
+    if ($file = getimagesize($path)) {
+        return image_type_to_extension(intval($file[2]), false);
+    }
+
+    return null;
+}
+
 function does_file_meet_requirements(string $path, int $max_width, int $max_height): array
 {
     $file = getimagesize($path);