Add compatibility layer for array_column(), array_replace(), array_replace_recursive()
diff --git a/system/core/CodeIgniter.php b/system/core/CodeIgniter.php
index 2bdd764..eb3927e 100644
--- a/system/core/CodeIgniter.php
+++ b/system/core/CodeIgniter.php
@@ -191,6 +191,7 @@
 	require_once(BASEPATH.'core/compat/mbstring.php');
 	require_once(BASEPATH.'core/compat/hash.php');
 	require_once(BASEPATH.'core/compat/password.php');
+	require_once(BASEPATH.'core/compat/array.php');
 
 /*
  * ------------------------------------------------------