imap_msgno Gets the message sequence number for the given UID &reftitle.description; intimap_msgno IMAP\Connectionimap intmessage_uid Returns the message sequence number for the given message_uid. This function is the inverse of imap_uid. &reftitle.parameters; &imap.imap-parameter.imap; message_uid The message UID &reftitle.returnvalues; Returns the message sequence number for the given message_uid. &reftitle.changelog; &Version; &Description; &imap.changelog.imap-param; &reftitle.seealso; imap_uid