Issue #14: Squelch warnings about 'Sequence out of range (errflg=2)'.

Author: geerlingguy

Imap.php

@@ -266,7 +266,13 @@ public function getMessageIds() {
     $this->tickle();
 
     // Fetch overview of mailbox.
-    $overviews = imap_fetch_overview($this->mailbox, "1:" . imap_num_msg($this->mailbox), 0);
+    $number_messages = imap_num_msg($this->mailbox);
+    if ($number_messages) {
+      $overviews = imap_fetch_overview($this->mailbox, "1:" . imap_num_msg($this->mailbox), 0);
+    }
+    else {
+      $overviews = array();
+    }
     $messageArray = array();
 
     // Loop through message overviews, build message array.