Deletes variables from the user cache

wincache_ucache_dec
wincache_ucache_exists
WinCache Functions
PHP Manual

# wincache_ucache_delete

(PECL wincache >= 1.1.0)

wincache_ucache_delete — Deletes variables from the user cache

### Description

bool wincache_ucache_delete ( mixed `$key` )

Deletes the elements in the user cache pointed by `key`.

### Parameters

`key`

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

### Return Values

Returns `TRUE` on success or `FALSE` on failure.

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.

### Examples

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'));
?>`

The above example will output:

    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));
?>`

The above example will output:

    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));
?>`

The above example will output:

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

### See Also

- 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

wincache_ucache_dec
wincache_ucache_exists
WinCache Functions
PHP Manual