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-rw-r--r--program/lib/Roundcube/rcube_plugin_api.php6
1 files changed, 4 insertions, 2 deletions
diff --git a/program/lib/Roundcube/rcube_plugin_api.php b/program/lib/Roundcube/rcube_plugin_api.php
index b3a32985c..23732efa3 100644
--- a/program/lib/Roundcube/rcube_plugin_api.php
+++ b/program/lib/Roundcube/rcube_plugin_api.php
@@ -374,9 +374,11 @@ class rcube_plugin_api
*/
public function unregister_hook($hook, $callback)
{
- $callback_id = array_search($callback, $this->handlers[$hook]);
+ $callback_id = array_search($callback, (array) $this->handlers[$hook]);
if ($callback_id !== false) {
- unset($this->handlers[$hook][$callback_id]);
+ // array_splice() removes the element and re-indexes keys
+ // that is required by the 'for' loop in exec_hook() below
+ array_splice($this->handlers[$hook], $callback_id, 1);
}
}