(PHP 4, PHP 5, PHP 7, PHP 8)
imap_num_msg — Gets the number of messages in the current mailbox
Gets the number of messages in the current mailbox.
Return the number of messages in the current mailbox, as an integer, or false on error.
| 版本 | 说明 |
|---|---|
| 8.1.0 |
现在 imap 参数接受 IMAP\Connection
实例，之前接受有效的 imap resource。
|