Php/docs/function.wincache-ucache-cas
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wincache_ucache_cas
(PECL wincache >= 1.1.0)
wincache_ucache_cas — Compares the variable with old value and assigns new value to it
Description
wincache_ucache_cas
( string $key
, int $old_value
, int $new_value
) : bool
Compares the variable associated with the key
with old_value
and if it matches then assigns the new_value
to it.
Parameters
key
- The
key
that is used to store the variable in the cache.key
is case sensitive. old_value
- Old value of the variable pointed by
key
in the user cache. The value should be of typelong
, otherwise the function returnsFALSE
. new_value
- New value which will get assigned to variable pointer by
key
if a match is found. The value should be of typelong
, otherwise the function returnsFALSE
.
Return Values
Returns TRUE
on success or FALSE
on failure.
Examples
Example #1 Using wincache_ucache_cas()
<?phpwincache_ucache_set('counter', 2922);var_dump(wincache_ucache_cas('counter', 2922, 1));var_dump(wincache_ucache_get('counter'));?>
The above example will output:
bool(true) int(1)
See Also
- wincache_ucache_inc() - Increments the value associated with the key
- wincache_ucache_dec() - Decrements the value associated with the key