wincache_ucache_delete

(PECL wincache >= 1.1.0)

wincache_ucache_delete — Deletes variables from the user cache

说明

wincache_ucache_delete ( mixed $key ) : bool

Deletes the elements in the user cache pointed by key.

参数

key

The key that was used to store the variable in the cache. key is case sensitive. key can be an array of keys.

返回值

成功时返回 TRUE， 或者在失败时返回 FALSE。

If key is an array then the function returns FALSE if every element of the array fails to get deleted from the user cache, otherwise returns an array which consists of all the keys that are deleted.

范例

Example #1 Using wincache_ucache_delete() with key as a string

<?php
wincache_ucache_set('foo', 'bar');
var_dump(wincache_ucache_delete('foo'));
var_dump(wincache_ucache_exists('foo'));
?>

以上例程会输出：

bool(true)
bool(false)

Example #2 Usingwincache_ucache_delete() with key as an array

<?php
$array1 = array('green' => '5', 'blue' => '6', 'yellow' => '7', 'cyan' => '8');
wincache_ucache_set($array1);
$array2 = array('green', 'blue', 'yellow', 'cyan');
var_dump(wincache_ucache_delete($array2));
?>

以上例程会输出：

array(4) { [0]=> string(5) "green" 
           [1]=> string(4) "Blue" 
           [2]=> string(6) "yellow" 
           [3]=> string(4) "cyan" }

Example #3 Using wincache_ucache_delete() with key as an array where some elements cannot be deleted

<?php
$array1 = array('green' => '5', 'blue' => '6', 'yellow' => '7', 'cyan' => '8');
wincache_ucache_set($array1);
$array2 = array('orange', 'red', 'yellow', 'cyan');
var_dump(wincache_ucache_delete($array2));
?>

以上例程会输出：

array(2) { [0]=> string(6) "yellow" 
           [1]=> string(4) "cyan" }

参见