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(PHP 5, PHP 7 >= 5.3.0)
imap_gc — Clears IMAP cache
$imap_stream
, int $caches
)Purges the cache of entries of a specific type.
imap_stream
由 imap_open() 返回的 IMAP 流。
caches
Specifies the cache to purge. It may one or a combination
of the following constants:
IMAP_GC_ELT
(message cache elements),
IMAP_GC_ENV
(enveloppe and bodies),
IMAP_GC_TEXTS
(texts).
成功时返回 TRUE
, 或者在失败时返回 FALSE
。
Example #1 imap_gc() example
<?php
$mbox = imap_open ( "{imap.example.org:143}" , "username" , "password" );
imap_gc ( $mbox , IMAP_GC_ELT );
?>
[#1] Anonymous [2009-07-23 12:47:46]
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.