wincache_ucache_exists
(PECL wincache >= 1.1.0)
wincache_ucache_exists — Checks if a variable exists in the user cache
Description
bool wincache_ucache_exists
( string $key
)
Checks if a variable with the key exists in the user cache or not.
Parameters
- key
-
The key that was used to store the variable in the cache. key is case sensitive.
Return Values
Returns TRUE if variable with the key exitsts, otherwise returns FALSE.
Examples
Example #1 Using wincache_ucache_exists()
<?php
if (!wincache_ucache_exists('green'))
wincache_ucache_set('green', 1);
var_dump(wincache_ucache_exists('green'));
?>
The above example will output:
bool(true)
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_delete() - Deletes variables from 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