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apcu_fetch

(PECL apcu >= 4.0.0)

apcu_fetch Fetch a stored variable from the cache

说明

apcu_fetch(mixed $key, bool &$success = ?): mixed

Fetches an entry from the cache.

参数

key

The key used to store the value (with apcu_store()). If an array is passed then each element is fetched and returned.

success

Set to true in success and false in failure.

返回值

The stored variable or array of variables on success; false on failure

更新日志

版本 说明
PECL apcu 3.0.17 The success parameter was added.

示例

示例 #1 A apcu_fetch() example

<?php
$bar
= 'BAR';
apcu_store('foo', $bar);
var_dump(apcu_fetch('foo'));
?>

以上示例会输出:

string(3) "BAR"

参见

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User Contributed Notes 1 note

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orlando at thoeny dot dev
10 months ago
Note that $success is set to false if no cached entry with given key exists.
So "failure" tells you if the cache was hit or not.
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