(PECL wincache >= 1.1.0)
wincache_ucache_delete — Deletes variables from the user cache
Deletes the elements in the user cache pointed by key
.
key
The key
that was used to store the variable in the cache.
key
is case sensitive. key
can be an
array of keys.
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.
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" }