- function walkTreeInPreOrderEmptyTrash($index, $imap_stream, $tree) {
- global $trash_folder;
- if ($tree[$index]['doIHaveChildren']) {
- for ($j = 0; $j < count($tree[$index]['subNodes']); $j++) {
+/**
+ * Recursively walk the tree of trash mailboxes and delete all folders and messages
+ *
+ * @param int index the place in the tree to start, usually 0
+ * @param stream imap_stream the IMAP connection to send commands to
+ * @param array tree the tree to walk
+ * @return void
+ */
+function walkTreeInPreOrderEmptyTrash($index, $imap_stream, $tree) {
+ global $trash_folder;
+ walkTreeInPreOrderEmptyFolder($index, $imap_stream, $tree, $trash_folder);
+}
+
+/**
+ * Recursively walk the tree of mailboxes in the given folder and delete all folders and messages
+ *
+ * @param int index the place in the tree to start, usually 0
+ * @param stream imap_stream the IMAP connection to send commands to
+ * @param array tree the tree to walk
+ * @param mailbox the name of the root folder to empty
+ * @return void
+ */
+function walkTreeInPreOrderEmptyFolder($index, $imap_stream, $tree, $mailbox) {
+ if ($tree[$index]['doIHaveChildren']) {
+ for ($j = 0; $j < count($tree[$index]['subNodes']); $j++) {