imap_num_msg

(PHP 4, PHP 5, PHP 7, PHP 8)

imap_num_msgGets the number of messages in the current mailbox

说明

imap_num_msg(IMAP\Connection $imap): int|false

Gets the number of messages in the current mailbox.

参数

imap

An IMAP\Connection instance.

返回值

Return the number of messages in the current mailbox, as an integer, or false on error.

更新日志

版本 说明
8.1.0 The imap parameter expects an IMAP\Connection instance now; previously, a 资源(resource) was expected.

参见