Put the Exception inside the ImageResize class so older PHP versions can handle it as well + reverted the composer.json

Author: TheM1984

composer.json

@@ -18,9 +18,7 @@
     "suggest": {
         "ext-exif": "Auto-rotate jpeg files"
     },
-    "autoload" : {
-        "psr-4": {
-            "Eventviva\\":"lib/"
-        }
+    "autoload": {
+        "classmap": ["lib"]
     }
 }

lib/ImageResize.php

@@ -573,3 +573,8 @@ function imageflip($image, $mode) {
     imagedestroy($temp_image);
   }
 }
+
+/**
+ * PHP Exception used in the ImageResize class
+ */
+class ImageResizeException extends \Exception {}