If you notice that you're program's memory usage is increasing (as observed using ps) while calling the imap functions, calling this function should free that memory.
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
imap_gc — Clears IMAP cache
imapIMAP\Connection 实例。
flags
Specifies the cache to purge. It may one or a combination
of the following constants:
IMAP_GC_ELT (message cache elements),
IMAP_GC_ENV (envelope and bodies),
IMAP_GC_TEXTS (texts).
成功时返回 true， 或者在失败时返回 false。
| 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。
|
示例 #1 imap_gc() example
<?php
$mbox = imap_open("{imap.example.org:143}", "username", "password");
imap_gc($mbox, IMAP_GC_ELT);
?>