wincache_unlock

Releases an exclusive lock on a given key

&reftitle.description; `bool` `wincache_unlock` `string` `key`

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.

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.

&reftitle.parameters;

`key`

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

&reftitle.returnvalues;

&return.success;

&reftitle.examples;

### 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);
    ?>

&reftitle.seealso;

- `wincache_lock`
- `wincache_ucache_set`
- `wincache_ucache_get`
- `wincache_ucache_delete`
- `wincache_ucache_clear`
- `wincache_ucache_exists`
- `wincache_ucache_meminfo`
- `wincache_ucache_info`
- `wincache_scache_info`