Php/docs/function.wincache-ucache-delete

• PHP Manual
• WinCache 函数
• Deletes variables from the user cache

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

<?phpwincache_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

• wincache_ucache_set() - Adds a variable in user cache and overwrites a variable if it already exists in the cache
• wincache_ucache_add() - Adds a variable in user cache only if variable does not already exist in the cache
• wincache_ucache_get() - Gets a variable stored in the user cache
• wincache_ucache_clear() - Deletes entire content of the user cache
• wincache_ucache_exists() - Checks if a variable exists in the user cache
• wincache_ucache_meminfo() - Retrieves information about user cache memory usage
• wincache_ucache_info() - Retrieves information about data stored in the user cache