apcu_cache_info
(PECL apcu >= 4.0.0)
apcu_cache_info — Retrieves cached information from APCu's data store
説明
array apcu_cache_info
([ bool
$limited = false
] )Retrieves cached information and meta-data from APC's data store.
パラメータ
-
limited -
If
limitedisTRUE, the return value will exclude the individual list of cache entries. This is useful when trying to optimize calls for statistics gathering.
返り値
Array of cached data (and meta-data)失敗した場合に FALSE を返します
注意: apcu_cache_info() will raise a warning if it is unable to retrieve APC cache data. This typically occurs when APC is not enabled.
変更履歴
| バージョン | 説明 |
|---|---|
| 3.0.11 |
The limited parameter was introduced.
|
| 3.0.16 |
The "filehits" option for the
cache_type parameter was introduced.
|
例
例1 A apcu_cache_info() example
<?php
print_r(apcu_cache_info());
?>
上の例の出力は、 たとえば以下のようになります。
Array
(
[num_slots] => 2000
[ttl] => 0
[num_hits] => 9
[num_misses] => 3
[start_time] => 1123958803
[cache_list] => Array
(
[0] => Array
(
[filename] => /path/to/apcu_test.php
[device] => 29954
[inode] => 1130511
[type] => file
[num_hits] => 1
[mtime] => 1123960686
[creation_time] => 1123960696
[deletion_time] => 0
[access_time] => 1123962864
[ref_count] => 1
[mem_size] => 677
)
[1] => Array (...iterates for each cached file)
)
参考
- APCu configuration directives
- APCUIterator::getTotalSize() - Get total cache size
- APCUIterator::getTotalHits() - Get total cache hits
- APCUIterator::getTotalCount() - Get total count
忘却曲線を使ってこの関数を確実に記憶に残す
