/**
* Find UID of the specified message sequence ID
*
* @param int $id Message (sequence) ID
* @param string $folder Folder name
*
* @return int Message UID
*/
public function id2uid($id, $folder = null)
{
if (!strlen($folder)) {
$folder = $this->folder;
}
if (!$this->check_connection()) {
return null;
}
return $this->conn->ID2UID($folder, $id);
}
/**
* @param int $id Message (sequence) ID
* @param string $mbox_name Mailbox name
* @return int Message UID
* @access private
*/
private function _id2uid($id, $mbox_name = NULL)
{
if (!strlen($mbox_name)) {
$mbox_name = $this->mailbox;
}
if ($uid = array_search($id, (array) $this->uid_id_map[$mbox_name])) {
return $uid;
}
if (!($uid = $this->get_cache_id2uid($mbox_name . '.msg', $id))) {
$uid = $this->conn->ID2UID($mbox_name, $id);
}
$this->uid_id_map[$mbox_name][$uid] = $id;
return $uid;
}
/**
* Find UID of the specified message sequence ID
*
* @param int $id Message (sequence) ID
* @param string $folder Folder name
*
* @return int Message UID
*/
public function id2uid($id, $folder = null)
{
if (!strlen($folder)) {
$folder = $this->folder;
}
if ($uid = array_search($id, (array) $this->uid_id_map[$folder])) {
return $uid;
}
if (!$this->check_connection()) {
return null;
}
$uid = $this->conn->ID2UID($folder, $id);
$this->uid_id_map[$folder][$uid] = $id;
return $uid;
}
/**
* Find UID of the specified message sequence ID
*
* @param int $id Message (sequence) ID
* @param string $mailbox Mailbox name
* @param bool $force True to skip cache
*
* @return int Message UID
*/
function id2uid($id, $mailbox = null, $force = false)
{
if (!strlen($mailbox)) {
$mailbox = $this->mailbox;
}
if ($uid = array_search($id, (array) $this->uid_id_map[$mailbox])) {
return $uid;
}
if (!$force && ($mcache = $this->get_mcache_engine())) {
$uid = $mcache->id2uid($mailbox, $id);
}
if (empty($uid)) {
$uid = $this->conn->ID2UID($mailbox, $id);
}
$this->uid_id_map[$mailbox][$uid] = $id;
return $uid;
}
