wincache_unlock

(PECL wincache >= 1.1.0)

wincache_unlock — Releases an exclusive lock on a given key

Descrizione

wincache_unlock(string $key): bool

Releases an exclusive lock that was obtained on a given key by using wincache_lock(). If any other process was blocked waiting for the lock on this key, that process will be able to obtain the lock.

Avviso

Using of the wincache_lock() and wincache_unlock() can cause deadlocks when executing PHP scripts in a multi-process environment like FastCGI. Do not use these functions unless you are absolutely sure you need to use them. For the majority of the operations on the user cache it is not necessary to use these functions.

Elenco dei parametri

key: Name of the key in the cache to release the lock on.

Valori restituiti

Restituisce true in caso di successo, false in caso di fallimento.

Esempi

Example #1 Using wincache_unlock()

<?php
$fp = fopen("/tmp/lock.txt", "r+");
if (wincache_lock(“lock_txt_lock”)) { // do an exclusive lock
    ftruncate($fp, 0); // truncate file
    fwrite($fp, "Write something here\n");
    wincache_unlock(“lock_txt_lock”); // release the lock
} else {
    echo "Couldn't get the lock!";
}
fclose($fp);
?>

Vedere anche:

wincache_lock() - Acquires an exclusive lock on a given key
wincache_ucache_set() - Adds a variable in user cache and overwrites a variable if it already exists in the cache
wincache_ucache_get() - Gets a variable stored in the user cache
wincache_ucache_delete() - Deletes variables from 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_scache_info() - Retrieves information about files cached in the session cache

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