diff --git a/ext/handle_flash/main.php b/ext/handle_flash/main.php
index 5c188d99..c960bc38 100644
--- a/ext/handle_flash/main.php
+++ b/ext/handle_flash/main.php
@@ -57,10 +57,6 @@ class FlashFileHandler extends DataHandlerExtension
         $fp = fopen($tmpname, "r");
         $head = fread($fp, 3);
         fclose($fp);
-        if (!in_array($head, ["CWS", "FWS"])) {
-            return false;
-        }
-
-        return true;
+        return in_array($head, ["CWS", "FWS"]);
     }
 }
diff --git a/ext/handle_mp3/main.php b/ext/handle_mp3/main.php
index a2ac2865..171f71be 100644
--- a/ext/handle_mp3/main.php
+++ b/ext/handle_mp3/main.php
@@ -51,7 +51,6 @@ class MP3FileHandler extends DataHandlerExtension
 
     protected function check_contents(string $tmpname): bool
     {
-        $mimeType = getMimeType($tmpname);
-        return ($mimeType == 'audio/mpeg');
+        return getMimeType($tmpname) == 'audio/mpeg';
     }
 }
diff --git a/ext/handle_pixel/main.php b/ext/handle_pixel/main.php
index 70036b90..6dd8f27d 100644
--- a/ext/handle_pixel/main.php
+++ b/ext/handle_pixel/main.php
@@ -64,13 +64,7 @@ class PixelFileHandler extends DataHandlerExtension
     {
         $valid = [IMAGETYPE_PNG, IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_WEBP];
         $info = getimagesize($tmpname);
-        if (!$info) {
-            return false;
-        }
-        if (in_array($info[2], $valid)) {
-            return true;
-        }
-        return false;
+        return $info && in_array($info[2], $valid);
     }
 
     protected function create_thumb(string $hash, string $type): bool