imap_gc

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

imap_gcClears IMAP cache

说明

imap_gc(IMAP\Connection $imap, int $flags): bool

Purges the cache of entries of a specific type.

参数

imap

An IMAP\Connection instance.

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).

返回值

成功时返回 true, 或者在失败时返回 false

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.

范例

示例 #1 imap_gc() example

<?php

$mbox 
imap_open("{imap.example.org:143}""username""password");

imap_gc($mboxIMAP_GC_ELT);

?>

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User Contributed Notes 1 note

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Anonymous
12 years ago
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.
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