(PECL wincache >= 1.1.0)
wincache_ucache_cas — Compares the variable with old value and assigns new value to it
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.
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 type long, otherwise the function returns false.
new_value
New value which will get assigned to variable pointer by key if a match is found. The value should be of type long, otherwise the function returns false.
Returns true on success or false on failure.
Example #1 Using wincache_ucache_cas()
<?php
wincache_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)
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https://www.php.net/manual/en/function.wincache-ucache-cas.php