(PHP 8 >= 8.2.1)
imap_is_open — Check if the IMAP stream is still valid
$imap
Check if the IMAP stream is still valid.
imap
IMAP\Connection 实例。
Returns true if the stream is still valid, false otherwise.
true
false
示例 #1 imap_is_open() example
<?php$mbox = imap_open("{imap.example.org:143}INBOX", "username", "password") or die(implode(", ", imap_errors()));imap_is_open($mbox);// ...?>
