offsetExists() should return true for null values, resolves #181

1 files changed, 1 insertions, 1 deletions

diff --git a/idiorm.php b/idiorm.php
index 73072e6..2a5b9e5 100644
--- a/idiorm.php
+++ b/idiorm.php
@@ -2081,7 +2081,7 @@
         // --------------------- //
 
         public function offsetExists($key) {
-            return isset($this->_data[$key]);
+            return array_key_exists($key, $this->_data);
         }
 
         public function offsetGet($key) {