diff --git a/cmpUtil.php b/cmpUtil.php
index 362a5ab..5272429 100644
--- a/cmpUtil.php
+++ b/cmpUtil.php
@@ -130,6 +130,19 @@
 			return null;
 		}
 
+		function encodeJSONCompact($obj) {
+			$text = json_encode($obj, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+
+			$err = json_last_error();
+
+			if($err === JSON_ERROR_NONE)
+				return $text;
+
+			$this->errorJSON($err);
+
+			return null;
+		}
+
 		function readFile($file) {
 			return @file_get_contents(
 				$file						, // string