apcu_delete

(PECL apcu >= 4.0.0)

apcu_delete — Removes a stored variable from the cache

说明

apcu_delete(mixed $key): mixed

Removes a stored variable from the cache.

参数

key: A key used to store the value as a string for a single key, or as an array of strings for several keys, or as an APCUIterator object.

返回值

If key is an array, an indexed array of the keys is returned. Otherwise true is returned on success, or false on failure.

示例

示例 #1 A apcu_delete() example

<?php
$bar = 'BAR';
apcu_store('foo', $bar);
apcu_delete('foo');
// this is obviously useless in this form

// Alternatively delete multiple keys.
apcu_delete(['foo', 'bar', 'baz']);

// Or use an Iterator with a regular expression.
apcu_delete(new APCUIterator('#^myprefix_#'));
?>

参见

apcu_store() - 缓存一个变量到存储中
apcu_fetch() - Fetch a stored variable from the cache
apcu_clear_cache() - Clears the APCu cache
APCUIterator

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＋添加备注

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ywarnier at beeznest dot org ¶

2 years ago

Calling apcu_delete() on an unexisting cached variable name doesn't generate a NOTICE (nor WARNING), making it safe to use if unsure of the state of that variable.