[ci skip] Fix is_callable()-reliant logic broken by PHP 8

Close #6006, #6007

1 files changed, 1 insertions, 1 deletions

diff --git a/system/libraries/Migration.php b/system/libraries/Migration.php
index 1b7808923..915d4e453 100644
--- a/system/libraries/Migration.php
+++ b/system/libraries/Migration.php
@@ -288,7 +288,7 @@ class CI_Migration {
 				$this->_error_string = sprintf($this->lang->line('migration_class_doesnt_exist'), $class);
 				return FALSE;
 			}
-			elseif ( ! is_callable(array($class, $method)))
+			elseif ( ! method_exists($class, $method) OR ! (new ReflectionMethod($class, $method))->isPublic())
 			{
 				$this->_error_string = sprintf($this->lang->line('migration_missing_'.$method.'_method'), $class);
 				return FALSE;